Standings


2017 DO4SA REGIONAL POINTS

1660 MODIFIEDS

                                                    

Round

1

25 FEB'17   

Round

2

13 MEI'17 

 

Round

3

 

Round

4

 

Round

5

Round

6

 
DRIVER                        
CAR NR POINTS 
POINTS POINTS POINTS POINTS POINTS TOTAL
1.SHAWN BESTER  T86  67   63         130 
2.JP JNR DU PLESSIS  T88  63   67         130 
3.JAC JNR DU PLESSIS  T9  41   17          58 
4.SCHALK VD WESTHUIZEN  T7  41   55          96
5.JOHAN VAN DYK  T10  41   13          54 
6.FAAN OOSTHUIZEN  T156  39   43          82 
7.JUAN VERWEY T56 37  5         42
8.MARIUS VOS T888 31 57         88
9.STEFAN MARX T744 25 dnr         25
10.DIRK BOSMAN T104 21 dnr         21
11.SHANE DU TOIT T97 21 47         68
12.JACO KIRCHNER W444 20 dnr         20
13.FRANCOIS V RHYN W82 16 dnr         16
14.JACQUES V DYK T74 11 dnr         11
15.QUINTON VENTER T77 11 dnr         11
16.JP SNR DU PLESSIS T8 9 17         26
17.JUSTIN BRINK T13 9 dnr         9
18.ABDULKADER DALWAI T25 9 37         46
19.DEON LAMBERT T123 7 5         12
20.FRANCOIS ENGELBRECHT T61 5 dnr         5
21.STEVEN BUYS T64 5 dnr         5
22.IAN HENNING T921 5 19         24
23.RICO KOEGELENBERG T46 4 dnr         4
24.JD VD MERWE W9 2 dnr         2
25.TERSIUS V TONDER T444 DNR 37         37
26.WILLEM V ZYL T299 DNR 15         15
27.RICHARDT SCHMIDT T66 DNR 4         4
28.BRENDAN LE ROUX T51 DNR 7         7
29.DANIE MEYER T124 DNR 7         7

 

2.1 MODIFIEDS

DRIVER CAR NR POINTS POINTS POINTS POINTS POINTS POINTS TOTAL
1.RICHARDO DAVEY T33 77 71         148 
2.BRENNON GREEN T71 63 59         122 
3.RAYMOND JEFFERIES T300 57 5           62 
4.TERSIUS V TONDER T444 43 39            82 
5.RANIEL KOEGELENBERG T63 35 33            68 
6.JAN MOSTERT T23 19 29            48 
7.STIAAN BRITZ T45 17 13            30 
8.TIAAN LOUW T777 14 DNR           14 
9.DANIEL DE KOCK T84 12 5           17 
10.TERTIUS DE KOCK T98 12 DNR             12 
11.PIETER MEYER T535 11 13           24 
12.PIETER NIEMAND T101 11 DNR           11 
13.GAVIN FLEMING T22 9 29           48 
14.MARIO VERWEY T18 7 DNR        
15.MORNE VIVIER T30 7 DNR        
16.TYRON ELS T562 7 5                12
17.DAIN PARISH W34 6 DNR                6
18.EUGENE ZOGHBY T34 57 DNR                57     
19.SIEBERT NEETHLING T59 DNR 13                13    
20.GERT BRINK JNR W217 DNR 63                63     
                 

HOTRODS

DRIVER CAR NR POINTS POINTS POINTS POINTS POINTS POINTS TOTAL
1.HENDRIK BEETS SA3 77 51         128 
2.JEAN STEYL T34 63 21           84 
3.ANDRIES BRAND T12 55 67         122 
4.BRYAN GRIMBEEK T43 55 33           88 
5.LLEWELLYN KOTZE T5 49 15          64
6.STAN VAN ELST T999 31 21           52 
7.TRISTON NEL T73 29 19           48 
8.NICKY KOEGELENBERG T62 27 73         100 
9.TIAN PUTTER T38 21 DNR         21 
10.DYLAN NEL SA1 21 5         26 
11.BOBBY RAY T90 5 5         10 
12.JOSHUA RAY T91 15 21         36 
13.MICHAELA NORMAN T48 DNR 47               47
14.HAN-KOCH BRAND T66 DNR 53               53 
                 

MIDGETS

DRIVER CAR NR POINTS POINTS POINTS POINTS POINTS POINTS TOTAL
1.JOHANN MOLLER T58 73 69         142 
2.JACQUES VD MERWE T38 63 71         134 
3.DANTE DE RONDE  T115 49 59         108 
4.WESSEL RABE T18 47 DNR         47 
5.SHAWN JORDAAN T49 47 42         89 
6.TIM PARIES  T27 41 DNR         41 
7.SCHALK SWART T4 35 55         90 
8.CHARLES HOWELL  T87 DNR 35               35 
                 
                 
                 
                 
                 
                 

V8

DRIVER CAR NR POINTS POINTS POINTS POINTS POINTS POINTS TOTAL
1.ARRIE VAN ZYL T14 69 DNR         69 
2.PHILLIPUS FOURIE T892 57 DNR         57 
3.ALTRU DE KLERK T75 53 73         126 
4.ELRIKA GROENEWALD T3 51 DNR         51 
5.MORNE GROENEWALD T4 49 55         104 
6.RIAAN JORDAAN W22 24 DNR               24
7.JOHAN GROENEWALD T69 17 39               56 
8.MANNETJIES DAVIDS T49 16 31               47
9.JJ DE WET T43 17 5               22 
10.JEAN VAN WYK T35 15 0               15
11.PETRI STRYDOM T315 11 DNR               11
12.JD TRUTER  W6  DNR  27                27
13.ROGER YOUNGS T26 DNR 31               31
14.BURGER VD MERWE T84 DNR 65               65
15.MANFRED OEHL W112 DNR 55               55

LATE MODELS

DRIVER CAR NR POINTS POINTS  POINTS  POINTS  POINTS  POINTS  TOTAL
01. PJ FOURIE T7 45 55         100 
02. RENALTON V ECK T21 dnr 43         43 
03. IZAK SPIES T24 63 53         116 
05. KAREL BAKKER T33 5 DNR        
06. MORNE PUTTER T38 49 DNR         49 
07. GABRIE GELDERBLOM T55 43 65         108 
08. DANIE SANDENBERGH T77 dnr 19         19 
09. CHRIS LIEBENBERG T99 71 77         148 
10.DANIE CORREIA  47  29          76 
11.ROELF DU PLESSIS  T34  DNR  43                43

 

 

 

2013 RESULTS SAs

01

 

02

03

04

05

06

07

 

DO4SA

do4sa400

DIRT OVAL 4 SOUTH AFRICA

These regulations have been prepared for and on behalf of the oval racing clubs, promoters, officials and competitors that are affiliated to DO4SA.The content hereof is accordingly the property of those individuals. These regulations may not be used by other bodies unless DO4SA is credited as the source.

These regulations will govern the technical aspects of oval racing until 31 December 2016.

You have the right to protest. You would need to protest and need to specify what you think is illegal on the vehicle before scrutineering ends on race day, once race commence, you can only protest the car in front of you. Race officials will have the car examined by the technical team. Should you be correct the other competitor will be excluded and your money will be returned, but if you wrong the other competitor will get the money to reassemble his race car. Protest fee R1000-00.

No one is allowed in the protest area,(under roof) except the car owner, driver, two mechanics, technical inspector, one track official, club chairman /promoter and the driver who is protesting

All newly built vehicles have to first undergo the inspection by the technical consultant in your region before they would be permitted to enter their first event

DO4SA reserves the right to delete, change, or amend rules in the interest of competition.

TECHNICAL AND CONSTRUCTION REGULATIONS

CR 1 Protective clothing

  1. Full fire retardant overhalls are compulsory.
  2. Minimum requirement is a level 1, single layer race suit.
  3. The composition of the suit even if small percentages are used may not be of a polyester, nylon or synthetic material.
  4. Mechanic overhalls will not be permitted.
  5. Two piece race suites not permissible.
  6. No pushing up of sleeves permitted whilst racing.
  7. Fire retardant gloves are compulsory.
  8. Open finger tip gloves are not permitted.
  9. It is mandatory for competitors racing with Methanol to wear balaclavas.
  10. Neck braces shall be mandatory for all open wheeled classes and competitors under 18 years and recommendable to all other classes.
  11. Only full face helmets to be used.

CR 2 Safety Regulations
Applicable to all classes

1. All joints and seams in the construction of the vehicle shall be properly mitered and welded.
2. Methanol- it shall be mandatory that all methanol storage containers(jerry cans)be marked by spray or sticker the letter M  or ME in the colours red or orange.
3. All flammable items such as dashboards, plastics, carpets, upholstery and hood lining must be removed.
4. All bitumen cladding on the interior of the vehicle has to be removed.
5. All lights and windows must be removed and only the rear side windows may be replaced with clear lexan.
6. Under no circumstances may a vehicle compete without a secured bonnet, the purpose of this is to prevent the bonnet dislodging and secondly preventing, burns of any nature towards a competitor.
7. Bonnets shall be constructed and fit in such a manner that no open gaps will display when closed.
8. All piping( brakes and fuel) and wiring must be installed above the floor board or chassis.
9. All saloon vehicles shall be able to self start and self starters have to be in a good working condition.

CR 3 Batteries

1. It shall be mandatory for batteries to be bolted down.
2. Battery shall be bolted down by way of a cross bracket.
3. Cross bar specs: flat 5mm,round 8mm or square 8mm x 8mm and hold down bolts minimum of 8mm.
4. Batteries shall be covered by a non conductive material to prevent short circuiting in case of an accident.
5. Batteries fitted in the competitors compartment shall be mounted in a leak proof compartment, eg. Boat battery box and still be bolted down inside the box and box cover need to be strapped down as well.
6. In all instances batteries should be easily accessible for scrutineers to inspect.

CR 4 Boot lids

  1. All boot lids must be retained, and may be replaced with fibreglass replicas with a minimum thickness of 2 mm.

CR 5 Brakes and Brake Lights

  1. Brakes are mandatory on all vehicles in all classes
  2. All vehicles are to brake on all four wheels except: Midgets, Late models.
  3. Brake lights optional.

CR 6 Bumpers

1. All piping utilized for the purpose of bumpers shall remain in a single tubular form, it follows, that under no circumstances may any of these pipes be filled in any manner or have additional smaller tubing inserted to the inside of the larger pipe.
2. Rear bumper specification for club and national status classes on dirt are restricted to a single pipe of material not exceeding OD38 x 3mm thickness.
3. All sharp ends have to be bent inwards into the body, and bumpers may not protrude more than 50 mm beyond the tyre or the body work an must be detachable.
4. No external front bumpers in all classes except midgets
5. Rear bumpers: Must be horizontal, double pipes(+- 150 mm apart) with four(4) support pipes in between and maximum of six(6) mounting points including the mounting to the internal pipe, The height must be centre, covering the taillights and 130mm to 170mm apart from each other. A maximum of two(2) horizontal pipes are allowed.
6. Internal bumpers: Internal bumpers-piping material used shall have a maximum OD of 38mm x 2mm thickness. The internal bumper shall be shaped in accordance of the vehicle’s front and rear silhouette. Additional radiator protection may be installed internally with no more than 4 mounting points.

CR 7 Competition Numbers and advertisements on cars

1. All numbers shall be displayed on a contrasting backing.  It is recommended that numbers are preferably black letters on a white background, with a minimum size of 300mm high and 50mm readable font stroke;
2. Race numbers under no circumstances may be applied free hard in any method.  Only vinyl lettering or a professional sign writer application will be acceptable;
3. Advertisements/sponsors must not scramble the number of the vehicle;
4. Four displays of the numbers and prefixes are required: - on both sides of  the vehicle, on the roof and on the visor;
5. Advertisements and slogans may not be of discriminatory manner;
  5.1 Numbers 1, 2 and 3 will be reserved for SA Championships only;
  5.2 No longer may clubs use 1,2 or 3 for Club Champions;
6. Methanol using vehicles shall all have an orange or red sticker displaying ME or lightning bolt, sticker size no smaller than 200mm in diameter, displayed on either side of the vehicle;
7. The colour  which is to be used as the display for the methanol sticker shall be of a contrasting colour to the colour of the car;
8. Only, rear side windows (which are to be replaced with clear lexan or polycarbonate) may be sign written;
9. Competition numbers are also to be displayed on the right or left hand side of the visors.  White background with black lettering;
10. Competition numbers on windscreen aperture – visors
  10.1 The visor fitted  into the windscreen aperture shall be fitted from left to right, with a height of 12cm minimum.  The competition number shall be placed on the right to left hand side of the visor, with the competitor name taking up the balance of the visor;

CR 8 Engine Positions:

1. Rear mounted engine vehicles, the positions of the engines may not be altered in any manner and must be retained in the original manufactured fitted position (Tin Top);
2. The rear face of the engine is where the bell housing and the engine meet;
3. Measurements applicable to engine positions of front mounted engines, in rear wheel drive vehicles;
4. The back face of the engine will not be more than 600mm backwards from a line drawn across the centres of the two front wheels which will be determined by means of a plumb line using the method described as in the drawing;
5. The engine may not be fitted with a offset of more than 50mm from the centre line of the vehicle.

engine-position

CR 9 Exhaust:

1. Midget class exhaust specification see class rules;
2. Exhausts fitted below the floor pan shall have saddles fitted at +- 33% and 66% of the vehicle to retain the exhaust in the event of exhaust breaking.  Saddles are to be bolt on type;
3. Exhaust systems installed above the floor pan with tailpipes passing out through the side of the vehicle, shall do so at a maximum height of 450mm measured from the ground to the top of the pipe with the vehicle parked on a level floor, with driver seated and tyres measured at racing pressures;
4. Exhaust systems installed above the floor pan may not protrude more than 50mm beyond the body silhouette;
5. Exhaust noise levels may not exceed 103 decibels, this shall remain mandatory for health and environmental reasons;
6.

A fitment of an exhaust and silencer box is mandatory to saloon and Midgets classes;

CR 10 Fire Walls:

  1. All vehicles must have metal firewalls between the driver's compartment and engine, between driver's compartment and fuel cell or fuel tank;
  2. All firewalls are to be constructed of metal only, plastic, fibreglass and rubber is not
  3. acceptable;
  4. Fire walls will in all cases may not have any holes, other than where pipes are lead through with precise fitment;
  5. Sketch - Midget Fire Wall behind the competitor;

fire walls

CR 11 Flywheels:

  1. Cast steel/iron, Aluminium and metal fly wheels permitted;
  2. Aluminium fly wheels are permitted in all classes except Sprint Cars, Midgets.
  3. It is highly recommended that steel or Aluminium fly wheels are used for racing purposes;
  4. When lightening fly wheels, keep the lightening limited for safety purposes;

CR 12 Fuel tanks and fuel pipes:

1. Normal vehicles (tin-top) may not retain the original position of their fuel tanks, shall be removed from the original position; It is highly recommended that properly designed and manufactured racing fuel tanks are used or bag type fuel cells which reduces the risk of fuel spillage from accident damage.
2. The wall thickness of metal fuel tanks shall be no less than 1mm;
3. A fuel tank breather, which shall vent externally, must be fitted to all fuel tanks. A non-return valve shall be fitted to the breather.;
4. The non-return valve may not be airtight;
5. The fuel tank cap must be non-vented type;
6. The fuel tank shall be mounted in the boot space of the car behind the fire wall; Fuel tanks must be mounted in a separate compartment to the competitor;
7.

Fuel tanks must be securely mounted to the boot floor or the chassis with bolts or metal straps;

8. A fire wall must be constructed to separate the competitor from the fuel tank and fuel pumps as well as the filler and breather system;
9. The fuel lines must run above the floor;
10. The  section  of  the  fuel  line  running  inside  the  vehicle  past  the  competitor compartment must be of a steel material and may not have joints;

Diagram of tank breather system breather system

CR 13 Kill Switch:

  1. All vehicles shall have kill switches fitted; Kill switches to be marked red;
  2. The fitment of the kill switch fitted shall be within the competitors reach and his sight when strapped in;
  3. If the internal kill switch cannot be reach by an official easily, it shall be mandatory for an additional external kill switch to be fitted;
  4. Kill switches need to break the ignition and electric fuel pump circuits and battery circuits.

CR14 Mirrors:

  1. No mirrors in all classes.

CR 15 Mudflaps:

  1. Mudflaps in all classes are optional.

CR 16 Prop Shaft/Drive Shaft/Running Gear Protection:

General Prop shaft protection hoops:

  1. Drivers must be protected from open running prop shafts by two steel bands, with a minimum width of 50 mm;
  2. These bands shall at least be 5mm thick and be bolted or welded to the chassis; These bands are to prevent a broken shaft from lifting and coming into the cockpit area;
  3. The one band shall be a maximum of 150 mm behind the front yoke measured from the front of the prop shaft;

Prop shafts running below chassis:

  1. Vehicles shall have a collar/hoop that would prevent the front end of the running gear (prop shaft or torque tube) to lodge into the track should it break while the vehicle is in motion;
  2. The hoop should be approximately 25% along the distance of the shaft as measured from the front of the prop shaft;

CR 17 Race Seats:

  1. Race seat minimum specifications for the purpose of oval track racing:
  2. Race seat shall have holes where seat belts can be let through, one on each side of the seat for lap belts and two on the back rest at shoulder height for the belts to exit to its mounting points;
  3. It is highly recommended to fit a FIA approved seat;
  4. Only bucket race seats permitted, no adjustable back rest reclining road car or race styled seats will be permitted;
  5. Fibre Glass Seats have to be bolted with tear plates;
  6. Tear plate specification shall be a 50mm x 50mm x 2mm thick, each bolt shall receive such a tear plate;
  7. Seats are to be mounted with a support bar across, behind the backrest of the seat, just below shoulder height;
  8. Fibre glass seats have to be padded and covered with a non-flammable material;
  9. Fibre glass seats, wall thickness - minimum thickness of 8mm; Aluminium seats are permitted; Aluminium seat, wall thickness - minimum thickness of 2.5mm;
  10. Vehicles that have cracked and broken seats shall automatically be excluded from the event, without any further negotiations;

CR 18 Radiator Safety Control:

  1. All joints shall be double clamped, and pipe ends to be flared; in competitor cockpits;
  2. All piping to and from the radiator, other than the joints and the overflow pipes shall be of steel;
  3. The pipes must be mounted on the floor between the firewall and the radiator;
  4. All joints are to be enclosed by a rubber sock and all hoses are to be double clamped;
  5. Radiator shield protectors are mandatory with the following regulations applicable;
  6. A fitment of a shield in lexan or Perspex shall be fitted to protect the competitor from a burst water pipe;
  7. The shield could be made up in two designs namely:
  8. A straight up shield covering and protecting the competitor in full whilst seated, this to be the full range of the radiator and competitor;
  9. An upright shield with a hood covering the top of the radiator to form an airflow tunnel so not to restrict air intake, being the full width of the radiator, protecting the competitor whilst seated;

CR 19 Safety Nets/Protector Plate-Open Wheels:

  1. Safety Nets are optional on all saloon vehicles; Fitment of safety net requirements:
  2. Saloon cars – to the driver side of the door
  3. It shall cover the full window area from the rear of the driver’s seat to the front of the seat;
  4. The net shall be mounted to the roll cage above the driver’s head, with quick release clasps, which shall be fixed to the sissy bar, it follows that the net shall be released from the sissy bar
  5. Open wheeled vehicles shall have full safety nets fitted to the left hand side of the vehicle - mandatory;

CR 20 Protector Plates for open wheeled vehicles:

  1. It shall be mandatory for all open wheeled vehicles to have a protector plate to the right hand side enclosing the cockpit up to the height of the competitor’s shoulder when seated;

CR 21 Safety/Roll Gages:

1. The safety cage know as a roll cage is a structural framework designed to prevent serious body shell deformation and bodily harm in the case of collision or a car turning over;
2. It is compulsory for all vehicles to have a fully constructed roll cages;
3. Great care has to be taken that roll cages are constructed in the fashion, that in an event of an accident, no metal piping could break off causing bodily harm.  The roll cage has to be designed so to protect the competitor;

roll cage

Diagram of Roll Cage

1. The example shall be a mandatory minimum requirement;
2. The cross bar behind the driver seat(blue) shall be mounted flush directly behind the backrest of the seat in order to support the backrest. This cross bar shall be just below the shoulder of the driver when seated;
3. Additional cross bars may be added to the cage;
4. Where the roll cage has lost strength due to bends, triangulated bracing to reinforce the cage would be   necessary;
5. All welding points to be welded 100% and the less accessible areas no less tha75%;
6. Round tubing shall have a minimum outside diameter of 38mm and a minimum wall thickness of 2mm;
7. Where the driver’s helmets could come into contact with the safety cage, a non-   flammable padding should be.
8. Sissy bars shall be fitted in such a manner that the competitor's hips and knees are completely protected when he/she is strapped into the seat.
9. The sissy bars should be constructed in such a manner that in an event of a T-bone incident the other   vehicle would collide with the sissy bar;

CR 22 Seat Belts

  1. Quick release seat belt and shoulder harness are mandatory; Seat belts must have a minimum of four points;
  2. No hand stitching or homemade alterations permitted to belts;
  3. Only SABS or International standard belts permitted;
  4. Safety belts and driver seats must be secured to the roll cage or frame (not to the floor pan);

Fitment of Seat Belts:

1. The shoulder belt will exit through the backrest of the seat horizontally to the rear mounting point with a maximum of 10degrees upwards and maximum of 20degree downward from the exit point;
2. The lap belts will exit through the side hole fitment of the seat, and form a vertical line to the mounting points with a maximum of 30degrees rearward;
3. The crotch belt application – it shall exit though the seat downward vertical viewed from the side with a maximum of 20degree rearward towards the mounting points; If the fitment of the shoulder belt cannot fit as above, the fitment of the shoulder belt may be taken down to the chassis, but must be supported with a crossbar behind the back rest of the seat at the same height of the seat belt exit holes in order for the crossbar to function as a support for the belt going down in order for the bar to take the downward pressure of the shoulder belt and not the seat back rest;
4. Existing vehicles that have seat belts and seats mounted to the floor pan have to be supported by 50mm x 50mm washers or 75mm x 2mm in diameter tear plate;
5. The installation of the cross bar shall be mandatory for this fitment;

CR 23 Space Frame/Purpose Built/Semi-space Frames:

Space Frame Vehicle definition:

  1. A space frame vehicle is a tubular frame constructed of square or round tubing to form the chassis and roll cage as a unit and has a detachable body shell.
  2. The body work must be detachable as a unit;

Flexi Vehicle (American Saloon) definition

1. A Flexi is built from a tubular frame constructed with round, square or rectangular tubing and cladded with metal sheeting or composite material panels to take on the appearance of a sedan motorcar in silhouette;

Space framed vehicles under construction –
Once the competitor has completed the frame prior to them fitting the body panels, they are obliged to contact the vehicle construction safety team (these appointments have been made at each club) in order for them to inspect the carcass framework.
The inspection in particular will include the checking of the welding, roll cage, suspension and various mounting points;
The team will similarly note in the scrutiny book of the competitor that the vehicle
had been inspected and has safely been passed.

Purpose built and Space framed vehicles
Competitor entry and exit into the driver cockpit;
It shall be mandatory for all competitors to gain access through the “driver door” side;
Should the height of the door impair access it shall not be cut away but shall have a hinge arrangement whereby it folds, at or near the top sissy bar;
Doors may be made fully removable, provided they are securely fitted during races.
The securing pins shall be removable from the outside;

All semi-space frame, space-frame or purpose built vehicles

1. shall have a reinforced floor area for the driver’s seat and feet;
2. No alterations to the roof of tin tops or standard car bodies permitted;
3. The backrest of the driver seat may not be further back than 200mm behind the “B” pillar when a saloon body or flexi is used.(This measurement is taken from the rearmost part of the pillar to the rearmost part of the backrest).

CR 24 Tow Hooks:

  1. All vehicles are to install tow hooks to the front and back of the vehicle; These may not protrude beyond the bumpers of the vehicle;
  2. It should be clearly marked in red, yellow or orange for tow-vehicle crew to tow the vehicle with the least delay;

CR 25 Weights:

1. Vehicles which require to increase vehicle weights shall do so by fitting ballasts:
2. Ballasts, is a non-functional material added to increase vehicle weight. Any ballast must be permanently fixed to the structure of the vehicle by means of bolting, of ballasts is prohibited;
3. No weight tolerance will be permitted;
4. A vehicle may be weighed at any time during the event and remains the responsibility of the competitor to ensure the vehicle in which he is competing complies to the class weight regulation.
5. Weights including driver: 1660cc, 2100cc, Hotrods; 800kg
    Midget A; 550 kg
    American Saloon; 1050kg
    6 cylinders and Lexus class; 950kg
    Midget B; 550kg without driver

CR 26 Welding:

  1. All joints and seams in the construction of the vehicle are to be properly mitred and shall be welded.
  2. All visible welding shall be 100%.

CR 27 Wheel and Tyres

1. Tyres/wheels may not protrude beyond the wheel arches or bodywork in saloon classes.
2. No double wheels are permitted.
3. Tyre identification – under no circumstances may the tyre manufacturer’s original extruded side wall markings, indicating manufacturer’s details, size, profile, country of origin, ratings, serial numbers and batch codes be removed or altered;
4. All wheel studs, nuts and bolts are to be fitted and in place;
5. Only open ended nuts may be used;
6. Wheel bolts eg., like most German vehicles, the bolt has to fastened at least by the diameter of the bolt in depth;
7. Bead lock will be permitted on all wheels;

CR 28 Wheel and Body Protector

  1. Wheel and body sill protectors are fitted between the front and the rear wheels at sill height and may be fitted to all saloon vehicle classes.
  2. The wheel and body protector must be straight and only curve inwards at each ends once mounted.
  3. The material used shall not exceed 2mm thickness.
  4. The protector may not protrude more than 30mm beyond the wheel and must be flush with the bodywork.
  5. No sharp edges or open round piping permitted, as these shall be rounded back to the chassis or mounting points.

CR 29 Windscreens and Glass Windows

  1. All windscreens and glass windows shall be removed if vehicle is being campaigned permanently on dirt;
  2. Only the rear side windows may be replaced with lexan or polycarbonate

CR 30 Wings

  1. Wings are permissible in all classes. Refer to the individual class regulations regarding wings;

1660 MODIFIED SALOON CLASS

MS1 Eligibility of vehicle and bodies:
1.1 Any saloon car body are permitted;
1.2 Any saloon body replicas may be constructed as a space frame with a panel being in solid shape, patchwork pieces making up a panel will not be permitted;
1.3 The body utilized shall have been powered by a three or four cylinder piston driven engine;
1.3.1 Front and rear wheel drive permitted;
1.4 The use of an engine originating from another model, manufactured by the same manufacturer or the use of an engine from another manufacturer shall be permitted, e.g. (Nissan in a Ford Escort body) provided that such engine complies to MS 7;
1.5 No age restriction to model of vehicle being utilized;
MS2 Safety:
2.1 No contact racing.
2.1.1 Upon contact being made unintentionally or accidentally, the following vehicle shall leave enough space for the leading vehicle to regain its position on the track;
2.1.2 Ensure that all joints in construction are welded properly- minimum of 75%;
2.1.3 No in car adjustments permitted, with the exception of brake balancing;
MS3 Bumpers:
3.1 No external steel bumpers permitted, refer to internal bumper regulation;
3.2 Internal bumper construction ref Technical and Construction regulations cr6.6.
3.3 Only plastic or fibre glass bumpers not exceeding 3mm thick may be fitted externally for cosmetic purposes only, no steel stiffeners permitted;
3.4 No piping to protrude outside of bodywork;
MS4 Brakes:
4.1 Single or twin pot brake callipers may be used on the front or rear wheels;
4.2 No ABS or any other electronic driving aids is permitted;
MS5 Car construction:
5.1 Front wheel drive cars may be converted to rear wheel drive cars and vice versa;
5.2 Competitors who so wish to convert rear wheel to front wheel and vice versa, shall contact the DO4SA TC’s for inspection and upon their approval the change will be noted in the scrutiny book;
5.3 Four wheel drive vehicles not permitted;
MS6 Dimension and weights:
6.1 All four wheels of the vehicle must fit within the body of the vehicle, which in turn must comply with the maximum dimensions of the vehicles.
6.2 Maximum vehicle length permitted is 5000mm. (5m)
6.3 Maximum vehicle width permitted is 2000mm. (2m)
6.4 Weight – The vehicle may be weighed anytime and must comply to a minimum weight of 800kg including driver,
MS7 Engine:
7.1 Engines utilized will only be permitted, if more than 500 units were sold of the vehicle from which it originated in South Africa; Engines utilized will only be permitted if more than 5000 units were sold in the world from which it originated;
7.2 The use of the Nissan A15 engine is specifically permitted, subject to all other limitations;
7.3 The use of an engine originating from another model, manufactured by the same manufacturer or the use of an engine from another manufacturer shall be permitted, provided that that engine complies with the criteria as set out above, e.g. (Nissan 1200 can be replaced with a Nissan 1500 or a Nissan engine may be replaced with a Ford engine.);
7.4 The engine shall have no more than 4 cylinders
7.4.1 1450CC – 16Valve permitted – no tolerance
7.4.2 1550cc – 12 valve permitted – no tolerance
7.4.3 1660cc – 8 valve permitted – PLUS 2cc tolerance
7.5 1660cc-16valves permitted- std form
7.6 Engines may be solid mounted;
7.7 After market fuel management systems permitted;
7.8 Only the original intake manifold and induction system may be used;
7.9 Throttle bodies are not permitted;
7.10 Air cleaners are free;
7.11 The rear face of the engine is where the bell housing and engine meet;
7.12 The rear face will not be more than 600mm back from the centre line of the front wheels;
7.13 Front wheel drive engines to remain in the original position;
7.14 Removal of alternators or charging systems is permitted;
7.15 Aftermarket pistons and rods permitted for example, Arias pistons, Eagle Rods, etc;
MS8 Exhausts:
8.1 Branches permitted;
8.2 Exhausts and silencer boxes mandatory and must comply to prescribed noise levels;
8.3 Maximum decibels 103,
MS9 Fuel, Fuel management and carburetion:
9.1 Methanol, avgas, racing and pump fuel permitted;
9.1.1 No performance enhancing additives permitted;
9.2 Methanol lubricant may be used, such as Castrol R40 or castor oil;
9.3 Maximum 2x40mm side draft or down draft carburetion;
9.3.1 Choke tubes 34mm maximum and shall measure as stipulated;
9.4 It shall not exceed 34mm if measured at any point across diameter;
9.5 1660cc 16 valves pump fuel, single std throttle body system.
MS10 Steering and suspension
10.1 Steering racks and steering boxes, or quick ratio versions thereof, power steering from production vehicles are all permitted;
10.2 Suspension designs are free;
10.3 Rose joints are permitted;
10.4 2,3,4,5 and 6 link rear suspension and a pull bar permitted;
10.5 Spring adjustments are permitted;
10.6 Only freely available over the counter shock absorbers for example Armstrong, Monroe, 
10.7 Gabriel, shall be permitted, it follows no competition shocks will be allowed, only standard shocks;
10.8 Gas shocks permitted within this range;
10.9 Coil over kits permitted;
MS11 Transmission:
11.1 Differentials utilized will only be permitted if more than 500 units were sold of the vehicle from which it originated within South Africa;
11.2 Gear ratios are free;
11.3 Diff ratios are free;
11.4 Only standard differentials and gearboxes are permitted;
11.5 Locked differentials are permitted;
MS12 Wheels and Tyres:
12.1 Normal, road legal tyres new or re-tread permitted;
12.2 Tyres must be freely available from any tyre dealer;
12.3 Tyres may not bare the inscription “not for highway use, for racing purposes only”;
12.4 Under no circumstances may any names or sizes be buffed off from the tyre walls;
12.5 Rally tyres are not permitted;
12.6 No purpose built or manufactured race tyres are permitted, which include rally tyres;
12.7 Tyres & rims 13/14 or 15inch x8J with a maximum width of 195 are permitted from 1 January 2014;
MS13 Wings:
13.1 Wings are permitted, / optional;
13.2 Wings may not exceed the body width or exceed past the rear of the vehicle;  It follows that the wings shall in all instances, not protrude past the body of the vehicle; 
13.3 Wing end plates to be a maximum of 500mm x 500mm;
13.4 Vertical plates permitted shall not exceed 4 x vertical plates;
13.5 The horizontal vein cannot exceed 500m in width;
13.6 Wing to be mounted from “B” pillar backwards;
13.7 Height of wing should be no higher than 300mm from the highest point of the roof to the highest part of the vane;
  1660 Modified Dirt 2013/2014     2013/2014
  Description   Permitted Not Permitted
1 Mechanical fuel injection.   X  
2 No aftermarket roller rockers     X
3 Altered rocker ratios not permitted     X
4 Aluminium fly wheel   X  
5 Electric water pump     X
6 Electric fuel pump   X  
7 Pulley sizes/ratio   X  
8 Competition/performance piston and rings   X  
9 Competition/performance Conrods   X  
10 Competition/performance Crankshaft     X
11 Any compression ratio   X  
12 Any bore and stroke ratio (1660cc maximum)   X  
13 Competition Valves   X  
14 Modified Tappet covers   X  
15 sump volume and design   X  
16 Camshaft profiling   X  
17 Fuel pressure regulator   X  
18 Weber and Dell’ orto carb parts interchangeable   X  
19 Clutch Plate – Button clutch plates   X  
20 Pressure plate ANY (eg Tilton)   X  
21 Aftermarket ignition systems   X  
22 Branches   X  
23 Altered camshaft drive     X
24 Dry sump     X
25 Forced induction (turbo - supercharger)     X
26 Throttle bodies     X
27 Wish bone suspension front   X  
28 Independent rear suspension   X  
29 2-3-4-5-6 link suspension   X  
30 Locked diff.   X  
31 Limited slip diff.     X
32 Front wheel drive space frame.   X  
33 Induction and ram tubes.   X  
34 Air boxes.   X  
35 Station wagon. and panel vans      X
         
36 Single or twin calliper per wheel maximum 4 callipers per vehicle   X  
37 Single shock per wheel, maximum 4shocks per vehicle   X  
38 Homemade Steering mechanism     X
39 Wings not to be adjusted while driving, can be adjusted in pits      
40 Altenators or Charging systems   X  
41 Vernier pulleys allowed   X  

2100cc MODIFIED SALOONS

MS1 Eligibility of vehicle and bodies:
1.1 Any saloon car body,
1.2 Any saloon body replicas may be constructed as a  space frame with a panel being in solid shape, patchwork pieces making up a panel will not be permitted;
1.3 The body utilized shall have been powered by a three or four cylinder piston driven engine;
1.4 The use of an engine originating from another model, manufactured by the same  manufacturer or the use of an engine from another manufacturer shall be permitted, provided that such engine complies to MS7, e.g. (Nissan engine in a Ford Escort body);
1.5 Engines, Gearboxes and Diffs may only be utilized if 5000 units have been sold worldwide;
MS2 Safety:
2.1 No contact racing;
2.1.1 Upon contact being made unintentionally or accidentally, the following vehicle shall leave enough space for the leading vehicle to regain its position on the track;
2.1.2 Ensure that all joints in construction are welded properly – minimum 75%;
2.1.3 No in car adjustments permitted, with the exception of brake balancing;
MS3 Bumpers:
3.1 No external steel bumpers permitted, refer to internal bumper regulation;
3.2 Internal bumper construction ref Technical and Construction regulations; (CR6.6)
3.3 Only plastic or fibre glass bumpers not exceeding 3mm thick may be fitted externally for cosmetic purposes only, no steel stiffeners permitted;
3.4 No piping to protrude outside of bodywork;
MS4 Brakes:
4.1 No ABS or any other electronic driving aids is permitted;
4.2 Brakes are free
MS5 Car construction:
5.1 Front wheel drive cars may be converted to rear wheel drive cars and vice versa;
5.2 Competitors who so wish to convert rear wheel to front wheel and vice versa, shall contact the DO4SA TC’s for inspection and upon their approval the change will be noted in the scrutiny book;
5.3 Four wheel drive vehicles not permitted;
MS6 Dimension and weights:
6.1 All four wheels of the vehicle must fit within the body of the vehicle, which in turn must comply with the maximum dimensions of the vehicles;
6.2 Maximum vehicle length permitted is 5000mm. (5m);
6.3 Maximum vehicle width permitted is 2000mm. (2m);
6.4 Weight – The vehicle may be at weighed anytime and must comply to a minimum weight of 800kg including driver,
MS7 Engine:
7.1 Engines utilized will only be permitted, if more than 5000 units were sold worldwide;
7.2 Three or four cylinder 4 stroke piston driven 8 valve single cam engine, overhead valve or overhead cam permitted; and 2000cc 16 valve, running on pump fuel system.eg Nissan vvl 16v std form.
7.3 Maximum volume 2100cc 8 valves, with 2 cc tolerance;
7.4 Engines may be solid mounted;
7.5 After market fuel management systems permitted;
7.6 Aftermarket Throttle bodies permitted,
7.7 Maximum - 45mm Throttle Body per cylinder;
7.8 Maximum – 65mm single throttle body
7.9 Maximum - 48mm Carbs;
7.10 Air cleaners are free;
7.11 The rear face of the engine is where the bell housing and engine meet. The rear face will not be more than 600mm back from the centre line of the front wheels;
7.12 Front wheel drive engines to remain in the original position;
7.13 No turbo or superchargers or any form of forced induction is permitted;
7.14 Removal of alternators or charging systems is permitted;
MS8 Exhausts:
8.1 Banana Branches is allowed and exhausts must have silencers and comply with the noise level prescribed.
8.2 Maximum decibels 103,;
MS9 Fuel, Fuel management and carburetion:
9.1 Methanol, avgas, racing and pump fuel permitted.  No performance enhancing additives permitted;
9.2 Methanol lubricant may be used, such as Castrol R40 or castor oil;
9.2.1 Carburettors are open;
9.2 No slide throttle bodies permitted;
9.3 Fuel injection open for 8 valve engine and std for 16 valve engines, management systems and injectors are permitted;
MS10 Steering and suspension:
10.1 Steering racks and steering boxes, or quick ratio versions thereof, power steering from production vehicles are all permitted;
10.2 Suspension designs are free;
10.3 Rose joints are permitted;
10.4 2,3,4,5,6  link rear suspension permitted with a pullbar system;
10.5 Spring adjustments are permitted;
10.6 Gas shocks permitted within this range;
10.7 Single adjustment competition shock will be permitted;
10.8 Suspension designs are free;
MS11 Transmission:
11.1 Differentials utilized will only be permitted if more than 5000 units were sold worldwide;
11.2 Any gear ratios permitted;
11.3 After market gear sets are permitted;
11.4 Clutches open;
11.5 Any Diff ratios permitted;
11.6 Only standard differentials and gearboxes are permitted;
11.7 Locked differentials are permitted;
11.8 Limited slip differential are permitted;
MS12 Wheels and Tyres:
12.1 Normal, road legal tyres new or re-tread permitted;
12.2 Tyres must be freely available from any tyre dealer;
12.3 Tyres may not bare the inscription “not for highway use, for racing purpose only”;
12.4 Under no circumstances may any names or sizes be buffed off from the tyre walls;
12.5 Rims 13,14 or 15 inch x8J &Tyres of maximum width of 205 are permitted;
MS13 Wings:
13.1 Wings are permitted, / optional;
13.2 Wings may not exceed the body width or exceed past the rear of the vehicle;
13.3 Wing end plates to be a maximum of 500mm x 500mm; 
13.4 Vertical plates permitted shall not exceed 4 x vertical plates;
13.5 The horizontal vein cannot exceed 500min width;
13.6 Wing to be mounted from “B” pillar backwards;
13.7 Height of wing should be no higher than 300mm from the highest point of the roof to the highest part of the vane;
 

2100cc MODIFIED SALOON 8VALVES

    2013/2016
  Description   Permitted Not Permitted
1 Mechanical fuel injection.    X  
Roller rockers    X  
Changed Rocker ratio    
Aluminium fly wheel    X  
Electric water pump    
Electric fuel pump    X  
Pulley sizes    
Piston and rings    
Conrods    
10  Crankshaft    
11  Compression ratio    
12  Bore and stroke ratio (2100cc maximum)    
13  Valves    
14  Tappet covers    
15  Sump volume and design    
16  Camshaft    
         
17  Fuel pressure regulator   X  
18  Weber and Dell'orto carb parts interchangeable      
19  Clutch Plate - Button clutch plates   X  
20  Pressure plate ANY (eg. Tilton)    
21  Ignition system    
22  Branches    
23  Camshaft drive    
24  Dry Sump optional    
25  Forced induction (turbo -, supercharger)     X
26  Throttle bodies   X  
27  Wish bone suspension front   X  
28  Independent rear suspension    
29  3-4-5-6 link suspension    
30  Locked diff.    
31  Limited slip diff.    
32  Front wheel drive space frame.    
33  Induction and ram tubes.    
34  Air boxes.    
35  Sation wagon and panel van    
36  WINGS AS PER RULE    
37  Single calliper per wheel maximum 4 callipers per vehicle    
         
38  Steering mechanism    
39  Wings not to be adjusted while driving, can be adjusted in pits      
40  Removal of alternators or charging systems is permitted    

HOTROD SALOON CLASS

HR1 Eligibility of vehicle and bodies:
1.1 Any saloon car body permitted.
1.2 Any saloon body replica’s may be constructed as a space frame, with the panels being in solid shape, patchwork pieces making up a panel will not be permitted. NO cladding bodywork must be panels or a unit;
1.3 The body utilized should have been powered by a four-cylinder or three cylinder piston driven or rotary engine;
1.4 The use of an engine originating from another model manufactured by the same manufacturer or the use of an engine from another manufacturer shall be permitted, provided that such engine complies HR7;
1.5 Removal of alternators or charging systems is permitted;
HR2 Safety:
2.1 NO contact racing.
2.1.1 Upon contact being made unintentionally or accidentally, the following vehicle shall leave enough space for the leading vehicle to regain its position on the track;
2.1.2 Ensure that all joints in construction are welded properly – minimum 75%;
2.1.3 No in car adjustments permitted, with the exception of brake balancing;
HR3 Bumpers:
3.1 No external steel bumpers permitted, refer to internal bumper regulation;
3.2 Internal bumper construction, refer Technical and Construction regulations; (CR6.6)
3.2.1 Only plastic or fibre glass bumpers not exceeding 3mm thickness may be fitted, externally for cosmetic purposes only, no steel stiffeners permitted;
3.2.2 No piping to protrude outside of bodywork;
3.2.3 Internal body protection permitted;
HR4 Brakes:
4.1 No ABS or any other electronic driving aids is permitted;
4.2 Brake balancing permitted;
4.3 Brakes free with the exception of HR4.1;
HR5 Car construction:
5.1 Front wheel drive cars may be converted to rear wheel drive cars and vice versa;
5.2 Competitors who so wish to convert rear wheel to front wheel and vice versa, shall contact the DO4SA TC for inspection and upon their approval the change will be noted in the scrutiny book;
HR6 Dimension and weights:
6.1 Dimensions of the vehicle – All four wheels of the vehicle must fit within the body of the vehicle, which in turn must comply with the maximum dimensions of the vehicles;
6.2 Maximum vehicle length permitted is 5000mm; (5m)
6.3 Maximum vehicle width permitted is 2000mm; (2m)
6.4 Weight -  The vehicle may be weighed at any time and must comply to a minimum weight of 800kg including driver.
HR7 Engine:
7.1 8 Valve units
7.1.1 Limited to a maximum of 2750cc, no tolerance;
7.1.2 Carburetion is free;
7.1.3 Fuel injection is free except no slide type throttles permitted;
7.1.4 Engine management systems are permitted;
7.2 Multi Valve Units:
7.2.1 Limited to a maximum of 2450cc with a 2cc  tolerance;
7.2.2 Carburation is free;
7.2.3 Fuel injection is free except no slide type throttles are permitted;
7.2.4 Engine management systems are permitted;
7.2.5 Carburetion is free;
7.3 Rotary Units
7.3.1 Limited to twin rotor engines, without turbo;
7.3.2 Carburetion is free;
7.3.3 Fuel injection is free except no slide type throttles are permitted;
7.3.4 Engine management systems are permitted;
7.4 All rotors shall be of ferrous metal – no aluminium/titanium permitted;
7.4.1 No roller bearing eccentric shafts permitted;
7.4.2 Porting Open (Bridge and peripheral porting permitted);
7.4.3 Stock intake and throttle body permitted, with management systems;
7.4.4 No slide throttle bodies are permitted;
7.5 The rear face of the engine is where the bell housing and the engine meet;
7.5.1 The rear face will not be more than 600mm back of the centre line of the front wheels. The centre line will be measured as per diagram;
7.5.2 The centre line will be emasured as per diagram;
7.5.3 Fuel injection open, fuel management open;
7.5.4 Flywheels open in this class;
7.5.5 Clutches mandatory and open in this class;
HR8 Exhausts:
8.1 Exhaust outlet must face downwards underneath the vehicle;
8.2 All piping shall be secured with saddles, preventing exhaust pipes from coming free in the event of it breaking off;
8.3 Exhaust tail pipes passing out the side of the vehicle may only do so at a maximum height of 450mm, measured from the top of the pipe to the ground;
8.4 Maximum decibels 103,
HR9 Fuel, Fuel management and carburetion:
9.1 Methanol, Avgas, racing and pump fuel permitted no enhancements;
9.2 Only methanol lubricants may be used such as Castrol R40 or Castor Oil;
HR10 Steering and suspension:
10.1 Rose joints are permitted;
10.2 2, 3, 4,5, 6 link rear suspension allowed and a pull bar is permitted;
10.3 Spring adjustment will be permitted;
10.4 Any shock absorbers permitted;
10.5 Any production vehicle steering components may be used;
HR11 Transmission:
11.1 Limited slip and lock differentials are permitted;
11.2 Gear ratios are free;
11.3 Only production vehicle gearboxes permitted;
11.4 Gear sets are free;
HR12 Wheels and Tyres:
12.1 Normal road tyres, new or retread permitted;
12.2 Tyres must be freely available from any tyre dealer;
12.3 Under no circumstances may any names or sizes be buffed off from the tyre walls;
12.4 Tyre size; 13/14/15” maximum tyre size 205; rims 8J max.;
12.5 All tyres have to be presented at scrutineering;
HR13 Wings:
13.1 Wings are permitted, / optional;
13.2 Wings may not exceed the body width or exceed past the rear of the vehicle;  It follows that the wings shall in all instances, not protrude past the body of the vehicle;
13.3 Wing end plates to be a maximum of 500mm x 500mm;
13.4 Vertical plates permitted shall not exceed 4 x vertical plates;
13.5 The horizontal vein cannot exceed 500m in width;
13.6 Wing to be mounted from “B” pillar backwards;
13.7 Height of wing should be no higher than 300mm from the highest point of the roof to the highest part of the vane;

MIDGET CLASS A/B

MC1 Eligibility of vehicle and bodies:
Not applicable
MC2 General Safety:
2.1 Non contact Racing as herewith defined;
2.1.1 No deliberate contact, bumping, or shunting will be permitted.
2.2 Ensure that all joints in construction are welded properly;
MC3 Brakes:
3.1 No ABS or any other electronic driving aids permitted;
3.2 Braking on at least three wheels;
MC4 Car construction:
4.1 Roll cage:
4.1.1 There will be a minimum clearance of 50mm between the driver’s helmet and any part of the roll cage;
4.1.2 Pipe of minimum 30mm in diameter with a wall thickness of 2mm is used for construction of the roll cage;
4.1.3 The roll cage must enclose the driver with a minimum of 4 down pipes and 2 cross braces;
4.1.4 The chassis will be constructed of a minimum of 30mm tubular metal with a minimum wall thickness of 2mm;
4.1.5 The use of chrome molly tubing is permitted;
  Nerf bars:
4.2 Nerf bars must be fitted to both sides of the vehicle, bar size maximum
4.2.1 30mm x 2mm;
4.2.2 Nerf bars must be bolted on as per diagram using maximum 6mm bolts;
4.2.3 Must be designed to protect the full width of the rear tyre of the vehicle;
4.2.4 The Nerf bars may not protrude more than 50mm beyond the rear wheel of the vehicle;
  Bumpers:
4.3 Front bumpers are compulsory and must be constructed of pipe with a maximum 
4.3.1 measurement of 30mm x 2mm;
  Front Bumpers:
4.4 Front bumpers may not protrude beyond the width of the chassis at the front, neither may
4.4.1 they protrude more than 150mm beyond a line drawn immediately in front of the 2 front tyres – a tolerance of 50mm shall be allowed;
4.5 Rear Bumpers or push bars:
4.5.1 Shall have a maximum diameter of 30mm x 2mm – mandatory;
4.5.2 The mid bumper or push bar height shall be between 250mm and 400mm above the ground;
4.5.3 The bumpers or push bars shall be designed that they do not protrude more than 100mm from the nearest body component;
4.5.4 The rear bumper/push bar mounting points may not exceed the width of the chassis at the rear;
4.5.5 The rear vertical element of the bumper shall mount to a solid point on the vehicle or the other vertical elements;
4.5.6 The nose cone and tailpiece to be constructed to all safety measures;
MC5 Engine:
5.1 Engines utilized will only be permitted if more than 5000 units were sold in the world and only standard production engines may be used;
5.2 Three or four cylinder 4 stroke piston driven 8 valve single cam engine, overhead valve or overhead cam permitted;
5.3 Maximum volume 2100cc,  for B-class and the 12A Rotary engine.
5.4 Maximum volume 2450cc for A-class(8 or 16 valves );tba at end of 2013/2014 season.
5.5 Engines may be solid mounted;
5.6 After market fuel management systems permitted;
5.7 Air cleaners are free;
5.8 Carburation:
  Maximum 45mm Side draughts;
  Maximum 38mm choke tubes;
5.9 16  Valve Standard Unit ( auto digest):
5.9.1 Limited to a maximum of 2000cc .
5.9.2 After market engine management systems are permitted;
5.9.3 Only standard road going throttle body will be permitted;
5.9.4 No turbo or superchargers or any form of forced induction is permitted;
5.9.5 Removal of alternators or charging systems is permitted;
MC6 Exhausts:
6.1 All piping shall be secured with saddles, preventing exhaust pipes from coming loose in the event of it breaking off;
6.2 Exhaust tail pipes are permitted to pass through the back of the vehicle or to have a  turn 90 degrees before rear wheel;
6.3 Maximum decibels 103,
MC7 Fuel, Fuel management and carburetion:
7.1 No fuel enhancements;
7.2 8 Valves – methanol permitted
7.3 16 Valve 2000cc – only pump fuel permitted
7.4 16 Valve 2450cc- methanol permitted
MC8 Steering and suspension:
8.1 Only solid axles permitted;
8.2 Independent suspensions are prohibited;
8.3 Front axle shall be a solid axle type, no wishbone system shall be permitted;
8.4 Steering mechanism shall be free, with the exception of, motorbike handle bars will not be permitted;
MC9 Transmission:
9.1 Only live axle differentials permitted;
9.2 Gearboxes open in B-class;
9.3 Torque tube permitted in A-class,but not in B class;
9.4 Quick change diff permitted in A- class, but not in B-class;
9.5 Torque arm permitted;
MC10 Wheels and Tyres:
10.1 American Racers 225 x 10” x 13” to front only permitted;
10.2 American or Hoosier rear tire to be used.
10.3 All tires have to be presented at scrutineering;
MC11 Wings:
11.1 Midgets – wings may not be wider than the tyre width and/or maximum 1700mm x 750mm;
11.1.1 In other words, Wings are not permitted to be wider than the rear track of the vehicle, measuring from the left to the right rear tyres, no overhang will be permitted;
  Nose Wing:
11.2 Nose wings shall not exceed 610mm x 610mm height;
11.2.1 Nose wing end plates shall be a maximum of 610mm x 300mm(height);

FLEXI CLASS American Saloons

AMS1 Eligibility of vehicle and bodies:
1.1 Hand built bodies (Flexi’s) are acceptable on condition that the vehicles are recognizable as a car;
1.2 Only rear wheel drive permitted;
AMS2 Safety:
2.1 No contact racing.
2.1.1 Upon contact being made unintentionally or accidentally, the following vehicle shall leave enough space for the leading vehicle to regain its position on the track;
2.1.2 Ensure that all joints in construction are welded properly;
AMS3 Bumpers:
3.1 Rear Bumpers:
3.1.1 Bumper must be mounted with a max of 6 mounting points, inclusive of the mounting to the internal pipe;
3.1.2 Bumpers will have a max of 2 horizontal pipes, and 4 uprights, 2 of the uprights shall be placed in the corners of the bumper.  The other 2 uprights shall be placed at the centre point from the corner and the centre of the vehicle on both sides;
3.1.3 Bumpers may not extend forward past the centre of the rear wheels, and must be rounded back to the internal mounting pipe via a bolt-on-flange or welded arrangement where it enters the body either the upper or the lower pipe shall remain horizontal when viewed in side elevation;
3.1.4 Bumpers must be 400mm-500mm above ground level, subject to a tolerance of 50mm;
3.1.5 The 2 horizontal pipes must be 200mm apart;
3.1.6 Max size pipe used 38mm x 2mm for rear bumpers;
3.2 Sissy Bars:
3.2.1 Pipe size 38mm x 2mm;
3.2.2 500mm off the ground level, Sissy bars shall have 3 vertical supports bolted or welded;
3.2.3 Wedged shaped vehicles may retain their entry through the roof;
AMS4 Brakes:
4.1 Brakes on all four wheels;
4.2 No ABS brake systems or electronic driving aids permitted;
4.3 Brake balancing permitted;
4.4 Up to 4 pot callipers may be used on front and rear wheels;
AMS5 Car construction:
5.1 Body Work
5.1.1 Flexi / Wedge shape vehicles shall be constructed using the following sizes and thickness of materials;
5.1.2 Metal: Maximum 1mm thick;
5.1.3 Aluminium: Maximum 1.6mm thick;
5.1.4 Fibreglass: or similar composite materials are permitted: maximum 6mm thick;
5.2 Chassis:
5.2.1 Self built chassis are permitted;
5.2.2 The material to be used to construct the chassis shall be square tubing a minimum of 38mm x 38mm x 2mm;
5.2.3 The balance of construction: the material used shall not exceed the following sizes;
5.2.4 Square tubing 50mm x 50mm x 3mm and Piping 50mm x 3mm;
AMS6 Dimension and weights:
6.1 The vehicle may be weighed at any time and must comply to the prescribed minimum weights which includes the competitor.
6.2 6 Cylinders and the Lexus class minimum of 950kg including competitor;
6.3 V8 minimum of 1050kg including competitor;
AMS7 Engine:
7.1 Any modifications may be made to, the engine, gearbox and suspension;
7.1.1 Only six and 8 cylinder engines.
  Flywheels and clutches open in this class;
7.1.2 A maximum of 410 cubic inch may be used;
7.1.3 Removal of alternators or charging systems is permitted;
7.1.4 Engine Positions:
7.2 Mid-mounted motors are not permitted;
7.2.1 The engines may not be mounted behind the dashboard bars of the roll cage;
7.2.2 It follows that the bulk of the engine cannot be within the parameters of the roll cage and that the vehicle should not have a roll cage that is constructed only rearward of the midpoint of the wheelbase;
7.2.3 No part of the engine may be rearward of the midpoint of the wheelbase;
7.3 Ignition Systems:
7.3.1 Aftermarket ignition systems are permitted;
AMS8 Exhaust:
8.1 Exhaust outlet must face downwards underneath the vehicle;
8.2 All piping shall be secured with saddles, preventing exhaust pipes from coming free in the event of it breaking off;
8.3 Exhaust tail pipes passing out the side of the vehicle may only do so at a maximum height of 450mm, measured from the top of the pipe to the ground;
8.4 Branches / manifolds open;
AMS9 Fuel, Fuel management and carburetion:
9.1.1 No performance enhancing additives permitted;
9.1.2 Methanol, Avgas, racing and pump fuel allowed, No enhancements;
9.1.3 Only methanol lubricants may be used such as Castrol R40 or castor oil;
9.2 Carburation:
9.2.1 Fuel injection permitted;
9.2.2 Carburetor open;
9.2.3 No slide throttle bodies may be used;
AMS10 Steering and Suspension:
10.1 Rose joints are permitted;
10.2 Steering rack is free
10.3 2, 3, 4,5, 6 link rear suspension allowed and free;
10.4 Spring adjustment will be permitted;
10.5 Any shock absorbers permitted;and only 4 per race car
AMS11 Transmission:
  Differentials:
11.1 differentials free;
11.2 Limited slip differentials permitted;
  Gearboxes:
11.3 Gearbox, gear rations and gear sets are free;
AMS12 Wheels and Tyres:
12.1 Rally tyres are not permitted.
12.2 Any freely available tyre at a general tyre dealer permitted;
12.3 Maximum road legal tyre size 205mm, rim size up to 15, 16, 17” x 8J;
12.4 Wheels may not protrude beyond the bodywork; 
AMS13 Wings:
13.1 Wing end plate size is a maximum of 500mm x 500mm and may not be attach to the roof 
13.2 or roofpillers with a minimum gap of 100mm;
  Height of wing from the highest point of the roof is a maximum of 300mm;
13.3 Wings are not allowed to be wider than the width of the vehicle or protrude beyond the rear of the vehicle;
13.4 The horizontal vein cannot exceed 500 mm in width.

CRATE AND SUPER LATE MODEL RULES

LM1 BODY:
A. Standard Dirt Style body required. A stock appearing Monte Carlo/Grand Prix/Taurus etc. Style nose is required. NOTE: Nose and rear roof supports must match body style. For roof size and roof support size.
B. All cars must have type of car displayed on body, with 3”inch minimum letters.
C. No wedge style bodies, no roof mounted spoilers or wings.
D. No lips allowed anywhere on the nose or body.
E. All cars must have a minimum of 1-1/2”inch roll at the top of the fenders, doors and quarter panels, a sharp edge will not be allowed. Body roll must go from sides over upper body, not upper body over sides. A single strip affixed to the edge and pop-riveted will not be allowed.
F. No part of deck lid may extend beyond quarter panels at rear.
G. All cars must have a number at least 18”inches high, clearly visible and identifiable on both sides and on roof. All cars must have numbers at least 3”inches high on nosepiece in the approximate position of the headlight, and at the rear on the fuel cell, at least 6”inches high, in a visible position. This rule is for the benefit of all competitors who wish their car to be scored correctly on each lap. In the event of more than one car with the same number, where confusion may occur, a team may be asked to alter their number in some way to avoid any misunderstanding. The first car to sign in will take precedence in retaining its original number.
LM2 INTERIORS:
A. The interior bodywork of the car may be dropped to a maximum of 3”inches below the top of the doors, and must also be a minimum of 11”inches below the roll cage.
B. If a dropped interior is used, the interior panel must fasten flush at the top of the doors, and must taper gradually towards centre of car, without creating any lips. The minimum taper allowed will be 8”inches.
C. If a dropped interior is used, it must taper up, in a straight line, to the quarter-panel height and be flat and level for a minimum of 32”inches to the end of the rear deck-lid / quarter-panel / spoiler.
D. If interior is flat throughout the car, it must maintain a minimum clearance of 11”inches from the roll cage, to allow for easy exit.
E. If interior is flat, the panel must run in a straight line from immediately behind the driver’s seat to the base of the spoiler / rear of deck lid.
LM3 NOSE PIECE:
A. Nose extensions must be flexible, and must not extend outside front tyres with wheels pointing straight ahead. They cannot alter original shape of nosepiece, and must be braced with collapsible supports, No steel supports.
B. A stock appearing nose must be used; it must be made of moulded type material and must be mounded level. No material may be removed from , or added to nosepiece, no cutting from bottom, top or sides. Fender flares must not alter original shape of nosepiece.
C. Minimum heights for stock nosepieces are as follows.
Camaro 18”inches Firebird 18”inches
Avenger 18”inches Monte Carlo 20”inches
Grand Prix 18”inches Mustang 20”inches
Taurus 20”inches Intrepid RT 20”inches
D. These are the minimum vertical measurements from the bottom of the nosepiece, where sheet metal is attached.
E. Inspector to determine specs on any make not mentioned.
F. Two- Piece nose must be fastened together without any spacers to increase width.
G. Stock nosepiece may extend to a maximum of 48”inches from centre of front hub to furthest point forward.
H. Tow hooks are mandatory, whatever style of nosepiece is used.
LM4 FRONT FENDERS AND HOOD:
A. Must be level and flat from left side of car and, at least, as far back as firewall / engine plate.
B. No part of fenders or hood may be below outside bodyline.
C. Fenders may not gain height from rear to front of car.
LM5 DOORS:
A. Top of doors, on both sides, can be no higher than 36”inches from ground, with a maximum material depth of 32”inches including any skirts or body extensions.
B. At no point may doors break in towards centre of car.
C. No dishing.
LM6 ROOFS- MANDATORY:
A. All models regardless of brand will have the following roof dimensions.
Minimum- 48” wide X 46” in length.
Maximum- 50” wide X 51” in length.
B. Roof post / supports are mandatory.
C. All posts must go from roof edge to outside edge of body on both sides.
D. Rear roof post must be flat, not curved.
E. Roof supports dimensions.
F. 40” minimum to 43” maximum across the bottom. The roof supports must be aligned from side to side on all cars. The roof support windows must be cut out, same size on both sides. Holes may be filled with lexan. ( No window decal’s)
G. Front post must be flat and of uniform width from top to bottom 2”inches minimum, with a maximum 1-inch break at top and bottom.
H. No flat or odd shaped roofs.
I. A maximum 1”inch roll is allowed along the front edge of the roof, a maximum 1”inch roll is allowed along the rear edge.
J. Any sun / anti-glare shields (maximum 4”inches) deep must be hinged for easy exiting.
LM7 REAR QUARTER PANELS:
A. No offset quarter-panels except taper from both sides towards centre of car.
B. Tyre clearance from doors and quarter-panels must be a minimum of 2”inches tyre must be fully visible from the side no wheel skirts.
C. At no point may quarter-panels break in towards centre of car. No dishing.
LM8 SPOILER:
A. Rear spoilers only- must be securely attached to top of rear body along entire width.
B. No material height adjustable type spoilers allowed. Spoiler may be hinged to rear body to allow for change in angle of deflection.
C. No more than three (3) spoiler supports may be used.
D. Spoilers may be made of sheet aluminium or a transport material, such as Lexan, and of adequate strength.
E. Open motor spoiler may have a maximum size of 8” height, by 72” width.
F. Crate motor spoilers may have a maximum of 12”height, by 72”width.
G. Note: gurney Flaps or curls are allowed along the upper edge of the spoiler, but their length will be included in all measurements; Spoilers will be measured according to total length of band width of material, in any shape.
LM9 CHASSIS / FRAME:
A. No aluminium frames or front clips. All frames must be of steel construction, and must be as minimum of 2” by 2” square, or rectangular, with a minimum material thickness of 083”inch.
B. If round tube frame, tubing must have a minimum of 1-3/4” outside diameter, with a minimum material thickness of 083”inch. These frames must use 4130 chrome molly steel for construction.
C. No front bumpers allowed. Rear bumpers allowed, may be re-in forced, but no rear extensions except for push bar. Push bar must not extend more than 6” beyond rear quarter panels, and must have welded supports to frame at each end. In any case, bumper may not extend beyond centre of rear tyre.
D. Wheelbase a minimum of 103” inches.
E. No wings or tunnels of any kind allowed underneath the body or chassis of the car.
LM10 ROLL CAGE:
A. All cars must have a suitable steel roll cage protecting the driver’s compartment, including headrest.
B. Side roll bars are mandatory, and must extend into the door panels.
C. A minimum of three (3) bars must be used on the left side.
D. Each bar must be at least 1- half” in diameter, with a minimum material thickness of 083”.
E. Roll cages must be welded to frame.
LM11 DRIVER COMPARTMENT / SAFETY:
A. A full metal firewall must encompass the driver’s compartment – front, rear, sides and floorboard.
B. Driver’s seat must be of a proper racing seat design, located on left side of car and securely attached to frame.
C. A full racing seat belt harness must be used, harness must be secured to frame, not seat.
D. All cars must have a quick release type steering wheel.
E. All cars must have working starter, operated from inside car.
F. Battery must not be located in driver’s compartment.
G. All drivers must wear full fire resistant uniforms.
H. No electronic or computer controlled devices or data acquisitions systems allowed.
LM12 FUEL CELL / FUEL:
A. An approved fuel cell must be securely mounted in the trunk area of the car, inside a .20 gauge metal box supported by a minimum of two 2”inch by 1/8”inch steel straps.
B. All fuel cells must be completely visible from rear of car.
C. Fuel cell must not be mounted lower than bottom of quick-change rear end.
D. Only gas and Alcohol, no nitrous oxide, nitro methane or other nitrate additives.
LM13 TRANSMISSION:
A. Drive train must have transmission, mounted on rear of engine- no direct drive or in-out boxes.
B. Any transmission, with working forward and reverse gears permitted, and must lead to one drive shaft.
C. All drive shafts must be painted white or silver, and must be protected by a minimum of one (1) safety hoop or a sling.
LM14 REAR END:
A. Any type of rear end / differential permitted.
LM15 BRAKES:
A. All cars must have operational four wheel braking.
B. No carbon fibre brake parts will be allowed.
LM16 WHEELS:
A. Any brand or type of wheel allowed must be mounted with lug nuts.
B. No knock-off or centre locks wheels.
C. Maximum wheel width- 14”inches.
D. Maximum width, side to side on outside of front tyres 90”inches.
E. Maximum width, side to side on outside of rear tyres 88”inches.
LM17 TYRES:
A. Tyre rule Hoosier + American Racer 1350 TO 1600 only.

MUFFLERS REQUIRED 

LM18 EXHAUST/MUFFLERS:
A. No modifications and/or alterations to mufflers will be allowed.
B. Collector type headers required.
C. All cars must register under 103 decibels.
LM19 ENGINES:
A. Engine setback will be 6”(six) inches maximum for (B) engine and 8”(eight) inches maximum for (A) all cast iron head & block engines measured from centre of top ball joint to most forward spark plug. (1 inch Tolerance)
B. All heads are limited to 1 (one) spark plug and 2(two) valves per cylinder.
C. No titanium, or other “exotic” material, crankshaft or connecting rods allowed.
D. There must be an inspection hole, minimum 1”inch diameter in oil pan for Rod & crank inspection or be willing to pull oil pan for inspection.
E. One four-barrel carburettor only of any manufacture. Fuel injections are permitted; NO blowers and turbo-charges are allowed.
F. Mechanical fuel pumps, electric fuel pumps and no pressurized fuel systems.
G. Magnetos permitted, but all cars must have an operating self-starter.
A- ENGINE:2200 LBS B- ENGINE:2300 LBS

Unlimited cubic inch limit

All cast iron heads and block

12”Spoiler allowed

Engine set back (1 inch tolerance)

Unlimited cubic inch permitted

Cast iron or Aluminium blocks

Open heads, 8”spoiler

Engine Set back (1 inch Tolerance)

LM20 WEIGHT:
A. Crate / with driver 2200lbs.
B. Super / with driver 2300lbs.
C. Minimum weight will be measured with driver in car.
D. Attached weight must be securely bolted to frame with half” or larger bolts and painted white or silver with car number clearly painted on them.
E. No weight may be attached to rear bumper.

CRATE LATE MODEL ENGINES:-B

A. Max 450 HP and 12" spoiler

SUPER LATE MODEL ENIGNES:-A

A. Engine are open and 8" spoiler 

SUPER AND CRATE LATE MODELS:

A. Engine setback will be 6"inches from centre of top ball joint to the most forward spark plug on the jig-frame car. 1 inch tolerance on engine setback.

GENERAL DIRT OVAL RULES:

1. The decision of the CoC is final. It is not always possible to construct rules to fulfil everyone’s needs and desires. Should a competitor decide to compete on on race day, he/she has to adhere to the rules outlined by the CoC.
2. Cars can be weighted at any time before, during and after a race on request of the CoC.
3. Anyone caught fighting in the pit area will be suspended from the pit area, First offense 0ne year, Second offense two years, Third offense suspended from DO4SA.
4. Any driver or pit crew member that enters another driver’s pit area will be deemed the aggressors.
5. Away from either driver’s pit area, both drivers or their pit crew members will be considered the aggressor, then the aggressor or aggressors will receive suspension.
6. Drivers should be aware that they will be held responsible for all members of their race teams.
7. Any driver who enters the grandstand area and / or proceeds to enter without invitation and conducts him or herself in any unsportman like manner may be suspended.
8. Any car or cars caught illegal will be suspended from the event.
9. Refusing to obey officials, could result in a suspension of the event.
10. When  a driver is suspended, his suspension will start at the next home club race.
11. No work on race cars after the white flag is been shown by the stater, when the white flag is been shown, u are under staters orders and there are then no repair time on track.
12. Sign-in, it is the responsibility of the driver to sign-in under the correct division and only one division(class) per race car. Driver’s name competing must match the sigh-in sheet. In the event of a driver change, officials must be notified so sign-in sheet can be changed prior to the start of any competition if the drivers division. No changes will be allowed after drivers briefing. You may also enter another  division(class) , but will not be scored in that division(class)
13. Club point will be awarded as follows: 1-24; 2-20; 3-18; 4-16; 5-14; 6-12; 7-10; 8-8; 9-6; 10-4; 11-2.
14. When a driver pull out of the pack before the starting flag drops, it will be considered as a jump start and put to the back of the pack, for a second offense the driver will be send to the infield.

“What is not specifically permitted is disallowed”

This means that you may only do something if the rules say you may. Competitors and officials alike shall adopt the following principle when reading and applying the rules: They should only be concerned with the normal plain meaning of the wording of the regulations and shall pay no attention to any claim as to what the regulations were intended to mean.

Asked the DO4SA TC if you are in doubt of a rule.

 

Lap_Times_14_May_April_2016.jpg

Here is the fastest lap times as of

14 May 2016

 

MIDGETS…
Wessel Rabe… 15.94

LATE MODELS…
Chris Liebenberg… 16.18  

V8 SALOONS…
Arrie Van Zyl… 19.05

HOTRODS…
Dylan Nel… 19.26

2.1 Mods…
Hansie Moore… 19.14

1660 Mods….
Christiaan Richter… 20.26

DO4SA

do4sa400

DIRT OVAL 4 SOUTH AFRICA

These regulations have been prepared for and on behalf of the oval racing clubs, promoters, officials and competitors that are affiliated to DO4SA.The content hereof is accordingly the property of those individuals. These regulations may not be used by other bodies unless DO4SA is credited as the source.

These regulations will govern the technical aspects of oval racing until 31 December 2016.

You have the right to protest. You would need to protest and need to specify what you think is illegal on the vehicle before scrutineering ends on race day, once race commence, you can only protest the car in front of you. Race officials will have the car examined by the technical team. Should you be correct the other competitor will be excluded and your money will be returned, but if you wrong the other competitor will get the money to reassemble his race car. Protest fee R1000-00.

No one is allowed in the protest area,(under roof) except the car owner, driver, two mechanics, technical inspector, one track official, club chairman /promoter and the driver who is protesting

All newly built vehicles have to first undergo the inspection by the technical consultant in your region before they would be permitted to enter their first event

DO4SA reserves the right to delete, change, or amend rules in the interest of competition.

TECHNICAL AND CONSTRUCTION REGULATIONS

CR 1 Protective clothing

  1. Full fire retardant overhalls are compulsory.
  2. Minimum requirement is a level 1, single layer race suit.
  3. The composition of the suit even if small percentages are used may not be of a polyester, nylon or synthetic material.
  4. Mechanic overhalls will not be permitted.
  5. Two piece race suites not permissible.
  6. No pushing up of sleeves permitted whilst racing.
  7. Fire retardant gloves are compulsory.
  8. Open finger tip gloves are not permitted.
  9. It is mandatory for competitors racing with Methanol to wear balaclavas.
  10. Neck braces shall be mandatory for all open wheeled classes and competitors under 18 years and recommendable to all other classes.
  11. Only full face helmets to be used.

CR 2 Safety Regulations
Applicable to all classes

1. All joints and seams in the construction of the vehicle shall be properly mitered and welded.
2. Methanol- it shall be mandatory that all methanol storage containers(jerry cans)be marked by spray or sticker the letter M  or ME in the colours red or orange.
3. All flammable items such as dashboards, plastics, carpets, upholstery and hood lining must be removed.
4. All bitumen cladding on the interior of the vehicle has to be removed.
5. All lights and windows must be removed and only the rear side windows may be replaced with clear lexan.
6. Under no circumstances may a vehicle compete without a secured bonnet, the purpose of this is to prevent the bonnet dislodging and secondly preventing, burns of any nature towards a competitor.
7. Bonnets shall be constructed and fit in such a manner that no open gaps will display when closed.
8. All piping( brakes and fuel) and wiring must be installed above the floor board or chassis.
9. All saloon vehicles shall be able to self start and self starters have to be in a good working condition.

CR 3 Batteries

1. It shall be mandatory for batteries to be bolted down.
2. Battery shall be bolted down by way of a cross bracket.
3. Cross bar specs: flat 5mm,round 8mm or square 8mm x 8mm and hold down bolts minimum of 8mm.
4. Batteries shall be covered by a non conductive material to prevent short circuiting in case of an accident.
5. Batteries fitted in the competitors compartment shall be mounted in a leak proof compartment, eg. Boat battery box and still be bolted down inside the box and box cover need to be strapped down as well.
6. In all instances batteries should be easily accessible for scrutineers to inspect.

CR 4 Boot lids

  1. All boot lids must be retained, and may be replaced with fibreglass replicas with a minimum thickness of 2 mm.

CR 5 Brakes and Brake Lights

  1. Brakes are mandatory on all vehicles in all classes
  2. All vehicles are to brake on all four wheels except: Midgets, Late models.
  3. Brake lights optional.

CR 6 Bumpers

1. All piping utilized for the purpose of bumpers shall remain in a single tubular form, it follows, that under no circumstances may any of these pipes be filled in any manner or have additional smaller tubing inserted to the inside of the larger pipe.
2. Rear bumper specification for club and national status classes on dirt are restricted to a single pipe of material not exceeding OD38 x 3mm thickness.
3. All sharp ends have to be bent inwards into the body, and bumpers may not protrude more than 50 mm beyond the tyre or the body work an must be detachable.
4. No external front bumpers in all classes except midgets
5. Rear bumpers: Must be horizontal, double pipes(+- 150 mm apart) with four(4) support pipes in between and maximum of six(6) mounting points including the mounting to the internal pipe, The height must be centre, covering the taillights and 130mm to 170mm apart from each other. A maximum of two(2) horizontal pipes are allowed.
6. Internal bumpers: Internal bumpers-piping material used shall have a maximum OD of 38mm x 2mm thickness. The internal bumper shall be shaped in accordance of the vehicle’s front and rear silhouette. Additional radiator protection may be installed internally with no more than 4 mounting points.

CR 7 Competition Numbers and advertisements on cars

1. All numbers shall be displayed on a contrasting backing.  It is recommended that numbers are preferably black letters on a white background, with a minimum size of 300mm high and 50mm readable font stroke;
2. Race numbers under no circumstances may be applied free hard in any method.  Only vinyl lettering or a professional sign writer application will be acceptable;
3. Advertisements/sponsors must not scramble the number of the vehicle;
4. Four displays of the numbers and prefixes are required: - on both sides of  the vehicle, on the roof and on the visor;
5. Advertisements and slogans may not be of discriminatory manner;
  5.1 Numbers 1, 2 and 3 will be reserved for SA Championships only;
  5.2 No longer may clubs use 1,2 or 3 for Club Champions;
6. Methanol using vehicles shall all have an orange or red sticker displaying ME or lightning bolt, sticker size no smaller than 200mm in diameter, displayed on either side of the vehicle;
7. The colour  which is to be used as the display for the methanol sticker shall be of a contrasting colour to the colour of the car;
8. Only, rear side windows (which are to be replaced with clear lexan or polycarbonate) may be sign written;
9. Competition numbers are also to be displayed on the right or left hand side of the visors.  White background with black lettering;
10. Competition numbers on windscreen aperture – visors
  10.1 The visor fitted  into the windscreen aperture shall be fitted from left to right, with a height of 12cm minimum.  The competition number shall be placed on the right to left hand side of the visor, with the competitor name taking up the balance of the visor;

CR 8 Engine Positions:

1. Rear mounted engine vehicles, the positions of the engines may not be altered in any manner and must be retained in the original manufactured fitted position (Tin Top);
2. The rear face of the engine is where the bell housing and the engine meet;
3. Measurements applicable to engine positions of front mounted engines, in rear wheel drive vehicles;
4. The back face of the engine will not be more than 600mm backwards from a line drawn across the centres of the two front wheels which will be determined by means of a plumb line using the method described as in the drawing;
5. The engine may not be fitted with a offset of more than 50mm from the centre line of the vehicle.

engine-position

CR 9 Exhaust:

1. Midget class exhaust specification see class rules;
2. Exhausts fitted below the floor pan shall have saddles fitted at +- 33% and 66% of the vehicle to retain the exhaust in the event of exhaust breaking.  Saddles are to be bolt on type;
3. Exhaust systems installed above the floor pan with tailpipes passing out through the side of the vehicle, shall do so at a maximum height of 450mm measured from the ground to the top of the pipe with the vehicle parked on a level floor, with driver seated and tyres measured at racing pressures;
4. Exhaust systems installed above the floor pan may not protrude more than 50mm beyond the body silhouette;
5. Exhaust noise levels may not exceed 103 decibels, this shall remain mandatory for health and environmental reasons;
6.

A fitment of an exhaust and silencer box is mandatory to saloon and Midgets classes;

CR 10 Fire Walls:

  1. All vehicles must have metal firewalls between the driver's compartment and engine, between driver's compartment and fuel cell or fuel tank;
  2. All firewalls are to be constructed of metal only, plastic, fibreglass and rubber is not
  3. acceptable;
  4. Fire walls will in all cases may not have any holes, other than where pipes are lead through with precise fitment;
  5. Sketch - Midget Fire Wall behind the competitor;

fire walls

CR 11 Flywheels:

  1. Cast steel/iron, Aluminium and metal fly wheels permitted;
  2. Aluminium fly wheels are permitted in all classes except Sprint Cars, Midgets.
  3. It is highly recommended that steel or Aluminium fly wheels are used for racing purposes;
  4. When lightening fly wheels, keep the lightening limited for safety purposes;

CR 12 Fuel tanks and fuel pipes:

1. Normal vehicles (tin-top) may not retain the original position of their fuel tanks, shall be removed from the original position; It is highly recommended that properly designed and manufactured racing fuel tanks are used or bag type fuel cells which reduces the risk of fuel spillage from accident damage.
2. The wall thickness of metal fuel tanks shall be no less than 1mm;
3. A fuel tank breather, which shall vent externally, must be fitted to all fuel tanks. A non-return valve shall be fitted to the breather.;
4. The non-return valve may not be airtight;
5. The fuel tank cap must be non-vented type;
6. The fuel tank shall be mounted in the boot space of the car behind the fire wall; Fuel tanks must be mounted in a separate compartment to the competitor;
7.

Fuel tanks must be securely mounted to the boot floor or the chassis with bolts or metal straps;

8. A fire wall must be constructed to separate the competitor from the fuel tank and fuel pumps as well as the filler and breather system;
9. The fuel lines must run above the floor;
10. The  section  of  the  fuel  line  running  inside  the  vehicle  past  the  competitor compartment must be of a steel material and may not have joints;

Diagram of tank breather system breather system

CR 13 Kill Switch:

  1. All vehicles shall have kill switches fitted; Kill switches to be marked red;
  2. The fitment of the kill switch fitted shall be within the competitors reach and his sight when strapped in;
  3. If the internal kill switch cannot be reach by an official easily, it shall be mandatory for an additional external kill switch to be fitted;
  4. Kill switches need to break the ignition and electric fuel pump circuits and battery circuits.

CR14 Mirrors:

  1. No mirrors in all classes.

CR 15 Mudflaps:

  1. Mudflaps in all classes are optional.

CR 16 Prop Shaft/Drive Shaft/Running Gear Protection:

General Prop shaft protection hoops:

  1. Drivers must be protected from open running prop shafts by two steel bands, with a minimum width of 50 mm;
  2. These bands shall at least be 5mm thick and be bolted or welded to the chassis; These bands are to prevent a broken shaft from lifting and coming into the cockpit area;
  3. The one band shall be a maximum of 150 mm behind the front yoke measured from the front of the prop shaft;

Prop shafts running below chassis:

  1. Vehicles shall have a collar/hoop that would prevent the front end of the running gear (prop shaft or torque tube) to lodge into the track should it break while the vehicle is in motion;
  2. The hoop should be approximately 25% along the distance of the shaft as measured from the front of the prop shaft;

CR 17 Race Seats:

  1. Race seat minimum specifications for the purpose of oval track racing:
  2. Race seat shall have holes where seat belts can be let through, one on each side of the seat for lap belts and two on the back rest at shoulder height for the belts to exit to its mounting points;
  3. It is highly recommended to fit a FIA approved seat;
  4. Only bucket race seats permitted, no adjustable back rest reclining road car or race styled seats will be permitted;
  5. Fibre Glass Seats have to be bolted with tear plates;
  6. Tear plate specification shall be a 50mm x 50mm x 2mm thick, each bolt shall receive such a tear plate;
  7. Seats are to be mounted with a support bar across, behind the backrest of the seat, just below shoulder height;
  8. Fibre glass seats have to be padded and covered with a non-flammable material;
  9. Fibre glass seats, wall thickness - minimum thickness of 8mm; Aluminium seats are permitted; Aluminium seat, wall thickness - minimum thickness of 2.5mm;
  10. Vehicles that have cracked and broken seats shall automatically be excluded from the event, without any further negotiations;

CR 18 Radiator Safety Control:

  1. All joints shall be double clamped, and pipe ends to be flared; in competitor cockpits;
  2. All piping to and from the radiator, other than the joints and the overflow pipes shall be of steel;
  3. The pipes must be mounted on the floor between the firewall and the radiator;
  4. All joints are to be enclosed by a rubber sock and all hoses are to be double clamped;
  5. Radiator shield protectors are mandatory with the following regulations applicable;
  6. A fitment of a shield in lexan or Perspex shall be fitted to protect the competitor from a burst water pipe;
  7. The shield could be made up in two designs namely:
  8. A straight up shield covering and protecting the competitor in full whilst seated, this to be the full range of the radiator and competitor;
  9. An upright shield with a hood covering the top of the radiator to form an airflow tunnel so not to restrict air intake, being the full width of the radiator, protecting the competitor whilst seated;

CR 19 Safety Nets/Protector Plate-Open Wheels:

  1. Safety Nets are optional on all saloon vehicles; Fitment of safety net requirements:
  2. Saloon cars – to the driver side of the door
  3. It shall cover the full window area from the rear of the driver’s seat to the front of the seat;
  4. The net shall be mounted to the roll cage above the driver’s head, with quick release clasps, which shall be fixed to the sissy bar, it follows that the net shall be released from the sissy bar
  5. Open wheeled vehicles shall have full safety nets fitted to the left hand side of the vehicle - mandatory;

CR 20 Protector Plates for open wheeled vehicles:

  1. It shall be mandatory for all open wheeled vehicles to have a protector plate to the right hand side enclosing the cockpit up to the height of the competitor’s shoulder when seated;

CR 21 Safety/Roll Gages:

1. The safety cage know as a roll cage is a structural framework designed to prevent serious body shell deformation and bodily harm in the case of collision or a car turning over;
2. It is compulsory for all vehicles to have a fully constructed roll cages;
3. Great care has to be taken that roll cages are constructed in the fashion, that in an event of an accident, no metal piping could break off causing bodily harm.  The roll cage has to be designed so to protect the competitor;

roll cage

Diagram of Roll Cage

1. The example shall be a mandatory minimum requirement;
2. The cross bar behind the driver seat(blue) shall be mounted flush directly behind the backrest of the seat in order to support the backrest. This cross bar shall be just below the shoulder of the driver when seated;
3. Additional cross bars may be added to the cage;
4. Where the roll cage has lost strength due to bends, triangulated bracing to reinforce the cage would be   necessary;
5. All welding points to be welded 100% and the less accessible areas no less tha75%;
6. Round tubing shall have a minimum outside diameter of 38mm and a minimum wall thickness of 2mm;
7. Where the driver’s helmets could come into contact with the safety cage, a non-   flammable padding should be.
8. Sissy bars shall be fitted in such a manner that the competitor's hips and knees are completely protected when he/she is strapped into the seat.
9. The sissy bars should be constructed in such a manner that in an event of a T-bone incident the other   vehicle would collide with the sissy bar;

CR 22 Seat Belts

  1. Quick release seat belt and shoulder harness are mandatory; Seat belts must have a minimum of four points;
  2. No hand stitching or homemade alterations permitted to belts;
  3. Only SABS or International standard belts permitted;
  4. Safety belts and driver seats must be secured to the roll cage or frame (not to the floor pan);

Fitment of Seat Belts:

1. The shoulder belt will exit through the backrest of the seat horizontally to the rear mounting point with a maximum of 10degrees upwards and maximum of 20degree downward from the exit point;
2. The lap belts will exit through the side hole fitment of the seat, and form a vertical line to the mounting points with a maximum of 30degrees rearward;
3. The crotch belt application – it shall exit though the seat downward vertical viewed from the side with a maximum of 20degree rearward towards the mounting points; If the fitment of the shoulder belt cannot fit as above, the fitment of the shoulder belt may be taken down to the chassis, but must be supported with a crossbar behind the back rest of the seat at the same height of the seat belt exit holes in order for the crossbar to function as a support for the belt going down in order for the bar to take the downward pressure of the shoulder belt and not the seat back rest;
4. Existing vehicles that have seat belts and seats mounted to the floor pan have to be supported by 50mm x 50mm washers or 75mm x 2mm in diameter tear plate;
5. The installation of the cross bar shall be mandatory for this fitment;

CR 23 Space Frame/Purpose Built/Semi-space Frames:

Space Frame Vehicle definition:

  1. A space frame vehicle is a tubular frame constructed of square or round tubing to form the chassis and roll cage as a unit and has a detachable body shell.
  2. The body work must be detachable as a unit;

Flexi Vehicle (American Saloon) definition

1. A Flexi is built from a tubular frame constructed with round, square or rectangular tubing and cladded with metal sheeting or composite material panels to take on the appearance of a sedan motorcar in silhouette;

Space framed vehicles under construction –
Once the competitor has completed the frame prior to them fitting the body panels, they are obliged to contact the vehicle construction safety team (these appointments have been made at each club) in order for them to inspect the carcass framework.
The inspection in particular will include the checking of the welding, roll cage, suspension and various mounting points;
The team will similarly note in the scrutiny book of the competitor that the vehicle
had been inspected and has safely been passed.

Purpose built and Space framed vehicles
Competitor entry and exit into the driver cockpit;
It shall be mandatory for all competitors to gain access through the “driver door” side;
Should the height of the door impair access it shall not be cut away but shall have a hinge arrangement whereby it folds, at or near the top sissy bar;
Doors may be made fully removable, provided they are securely fitted during races.
The securing pins shall be removable from the outside;

All semi-space frame, space-frame or purpose built vehicles

1. shall have a reinforced floor area for the driver’s seat and feet;
2. No alterations to the roof of tin tops or standard car bodies permitted;
3. The backrest of the driver seat may not be further back than 200mm behind the “B” pillar when a saloon body or flexi is used.(This measurement is taken from the rearmost part of the pillar to the rearmost part of the backrest).

CR 24 Tow Hooks:

  1. All vehicles are to install tow hooks to the front and back of the vehicle; These may not protrude beyond the bumpers of the vehicle;
  2. It should be clearly marked in red, yellow or orange for tow-vehicle crew to tow the vehicle with the least delay;

CR 25 Weights:

1. Vehicles which require to increase vehicle weights shall do so by fitting ballasts:
2. Ballasts, is a non-functional material added to increase vehicle weight. Any ballast must be permanently fixed to the structure of the vehicle by means of bolting, of ballasts is prohibited;
3. No weight tolerance will be permitted;
4. A vehicle may be weighed at any time during the event and remains the responsibility of the competitor to ensure the vehicle in which he is competing complies to the class weight regulation.
5. Weights including driver: 1660cc, 2100cc, Hotrods; 800kg
    Midget A; 550 kg
    American Saloon; 1050kg
    6 cylinders and Lexus class; 950kg
    Midget B; 550kg without driver

CR 26 Welding:

  1. All joints and seams in the construction of the vehicle are to be properly mitred and shall be welded.
  2. All visible welding shall be 100%.

CR 27 Wheel and Tyres

1. Tyres/wheels may not protrude beyond the wheel arches or bodywork in saloon classes.
2. No double wheels are permitted.
3. Tyre identification – under no circumstances may the tyre manufacturer’s original extruded side wall markings, indicating manufacturer’s details, size, profile, country of origin, ratings, serial numbers and batch codes be removed or altered;
4. All wheel studs, nuts and bolts are to be fitted and in place;
5. Only open ended nuts may be used;
6. Wheel bolts eg., like most German vehicles, the bolt has to fastened at least by the diameter of the bolt in depth;
7. Bead lock will be permitted on all wheels;

CR 28 Wheel and Body Protector

  1. Wheel and body sill protectors are fitted between the front and the rear wheels at sill height and may be fitted to all saloon vehicle classes.
  2. The wheel and body protector must be straight and only curve inwards at each ends once mounted.
  3. The material used shall not exceed 2mm thickness.
  4. The protector may not protrude more than 30mm beyond the wheel and must be flush with the bodywork.
  5. No sharp edges or open round piping permitted, as these shall be rounded back to the chassis or mounting points.

CR 29 Windscreens and Glass Windows

  1. All windscreens and glass windows shall be removed if vehicle is being campaigned permanently on dirt;
  2. Only the rear side windows may be replaced with lexan or polycarbonate

CR 30 Wings

  1. Wings are permissible in all classes. Refer to the individual class regulations regarding wings;

1660 MODIFIED SALOON CLASS

MS1 Eligibility of vehicle and bodies:
1.1 Any saloon car body are permitted;
1.2 Any saloon body replicas may be constructed as a space frame with a panel being in solid shape, patchwork pieces making up a panel will not be permitted;
1.3 The body utilized shall have been powered by a three or four cylinder piston driven engine;
1.3.1 Front and rear wheel drive permitted;
1.4 The use of an engine originating from another model, manufactured by the same manufacturer or the use of an engine from another manufacturer shall be permitted, e.g. (Nissan in a Ford Escort body) provided that such engine complies to MS 7;
1.5 No age restriction to model of vehicle being utilized;
MS2 Safety:
2.1 No contact racing.
2.1.1 Upon contact being made unintentionally or accidentally, the following vehicle shall leave enough space for the leading vehicle to regain its position on the track;
2.1.2 Ensure that all joints in construction are welded properly- minimum of 75%;
2.1.3 No in car adjustments permitted, with the exception of brake balancing;
MS3 Bumpers:
3.1 No external steel bumpers permitted, refer to internal bumper regulation;
3.2 Internal bumper construction ref Technical and Construction regulations cr6.6.
3.3 Only plastic or fibre glass bumpers not exceeding 3mm thick may be fitted externally for cosmetic purposes only, no steel stiffeners permitted;
3.4 No piping to protrude outside of bodywork;
MS4 Brakes:
4.1 Single or twin pot brake callipers may be used on the front or rear wheels;
4.2 No ABS or any other electronic driving aids is permitted;
MS5 Car construction:
5.1 Front wheel drive cars may be converted to rear wheel drive cars and vice versa;
5.2 Competitors who so wish to convert rear wheel to front wheel and vice versa, shall contact the DO4SA TC’s for inspection and upon their approval the change will be noted in the scrutiny book;
5.3 Four wheel drive vehicles not permitted;
MS6 Dimension and weights:
6.1 All four wheels of the vehicle must fit within the body of the vehicle, which in turn must comply with the maximum dimensions of the vehicles.
6.2 Maximum vehicle length permitted is 5000mm. (5m)
6.3 Maximum vehicle width permitted is 2000mm. (2m)
6.4 Weight – The vehicle may be weighed anytime and must comply to a minimum weight of 800kg including driver,
MS7 Engine:
7.1 Engines utilized will only be permitted, if more than 500 units were sold of the vehicle from which it originated in South Africa; Engines utilized will only be permitted if more than 5000 units were sold in the world from which it originated;
7.2 The use of the Nissan A15 engine is specifically permitted, subject to all other limitations;
7.3 The use of an engine originating from another model, manufactured by the same manufacturer or the use of an engine from another manufacturer shall be permitted, provided that that engine complies with the criteria as set out above, e.g. (Nissan 1200 can be replaced with a Nissan 1500 or a Nissan engine may be replaced with a Ford engine.);
7.4 The engine shall have no more than 4 cylinders
7.4.1 1450CC – 16Valve permitted – no tolerance
7.4.2 1550cc – 12 valve permitted – no tolerance
7.4.3 1660cc – 8 valve permitted – PLUS 2cc tolerance
7.5 1660cc-16valves permitted- std form
7.6 Engines may be solid mounted;
7.7 After market fuel management systems permitted;
7.8 Only the original intake manifold and induction system may be used;
7.9 Throttle bodies are not permitted;
7.10 Air cleaners are free;
7.11 The rear face of the engine is where the bell housing and engine meet;
7.12 The rear face will not be more than 600mm back from the centre line of the front wheels;
7.13 Front wheel drive engines to remain in the original position;
7.14 Removal of alternators or charging systems is permitted;
7.15 Aftermarket pistons and rods permitted for example, Arias pistons, Eagle Rods, etc;
MS8 Exhausts:
8.1 Branches permitted;
8.2 Exhausts and silencer boxes mandatory and must comply to prescribed noise levels;
8.3 Maximum decibels 103,
MS9 Fuel, Fuel management and carburetion:
9.1 Methanol, avgas, racing and pump fuel permitted;
9.1.1 No performance enhancing additives permitted;
9.2 Methanol lubricant may be used, such as Castrol R40 or castor oil;
9.3 Maximum 2x40mm side draft or down draft carburetion;
9.3.1 Choke tubes 34mm maximum and shall measure as stipulated;
9.4 It shall not exceed 34mm if measured at any point across diameter;
9.5 1660cc 16 valves pump fuel, single std throttle body system.
MS10 Steering and suspension
10.1 Steering racks and steering boxes, or quick ratio versions thereof, power steering from production vehicles are all permitted;
10.2 Suspension designs are free;
10.3 Rose joints are permitted;
10.4 2,3,4,5 and 6 link rear suspension and a pull bar permitted;
10.5 Spring adjustments are permitted;
10.6 Only freely available over the counter shock absorbers for example Armstrong, Monroe, 
10.7 Gabriel, shall be permitted, it follows no competition shocks will be allowed, only standard shocks;
10.8 Gas shocks permitted within this range;
10.9 Coil over kits permitted;
MS11 Transmission:
11.1 Differentials utilized will only be permitted if more than 500 units were sold of the vehicle from which it originated within South Africa;
11.2 Gear ratios are free;
11.3 Diff ratios are free;
11.4 Only standard differentials and gearboxes are permitted;
11.5 Locked differentials are permitted;
MS12 Wheels and Tyres:
12.1 Normal, road legal tyres new or re-tread permitted;
12.2 Tyres must be freely available from any tyre dealer;
12.3 Tyres may not bare the inscription “not for highway use, for racing purposes only”;
12.4 Under no circumstances may any names or sizes be buffed off from the tyre walls;
12.5 Rally tyres are not permitted;
12.6 No purpose built or manufactured race tyres are permitted, which include rally tyres;
12.7 Tyres & rims 13/14 or 15inch x8J with a maximum width of 195 are permitted from 1 January 2014;
MS13 Wings:
13.1 Wings are permitted, / optional;
13.2 Wings may not exceed the body width or exceed past the rear of the vehicle;  It follows that the wings shall in all instances, not protrude past the body of the vehicle; 
13.3 Wing end plates to be a maximum of 500mm x 500mm;
13.4 Vertical plates permitted shall not exceed 4 x vertical plates;
13.5 The horizontal vein cannot exceed 500m in width;
13.6 Wing to be mounted from “B” pillar backwards;
13.7 Height of wing should be no higher than 300mm from the highest point of the roof to the highest part of the vane;
  1660 Modified Dirt 2013/2014     2013/2014
  Description   Permitted Not Permitted
1 Mechanical fuel injection.   X  
2 No aftermarket roller rockers     X
3 Altered rocker ratios not permitted     X
4 Aluminium fly wheel   X  
5 Electric water pump     X
6 Electric fuel pump   X  
7 Pulley sizes/ratio   X  
8 Competition/performance piston and rings   X  
9 Competition/performance Conrods   X  
10 Competition/performance Crankshaft     X
11 Any compression ratio   X  
12 Any bore and stroke ratio (1660cc maximum)   X  
13 Competition Valves   X  
14 Modified Tappet covers   X  
15 sump volume and design   X  
16 Camshaft profiling   X  
17 Fuel pressure regulator   X  
18 Weber and Dell’ orto carb parts interchangeable   X  
19 Clutch Plate – Button clutch plates   X  
20 Pressure plate ANY (eg Tilton)   X  
21 Aftermarket ignition systems   X  
22 Branches   X  
23 Altered camshaft drive     X
24 Dry sump     X
25 Forced induction (turbo - supercharger)     X
26 Throttle bodies     X
27 Wish bone suspension front   X  
28 Independent rear suspension   X  
29 2-3-4-5-6 link suspension   X  
30 Locked diff.   X  
31 Limited slip diff.     X
32 Front wheel drive space frame.   X  
33 Induction and ram tubes.   X  
34 Air boxes.   X  
35 Station wagon. and panel vans      X
         
36 Single or twin calliper per wheel maximum 4 callipers per vehicle   X  
37 Single shock per wheel, maximum 4shocks per vehicle   X  
38 Homemade Steering mechanism     X
39 Wings not to be adjusted while driving, can be adjusted in pits      
40 Altenators or Charging systems   X  
41 Vernier pulleys allowed   X  

2100cc MODIFIED SALOONS

MS1 Eligibility of vehicle and bodies:
1.1 Any saloon car body,
1.2 Any saloon body replicas may be constructed as a  space frame with a panel being in solid shape, patchwork pieces making up a panel will not be permitted;
1.3 The body utilized shall have been powered by a three or four cylinder piston driven engine;
1.4 The use of an engine originating from another model, manufactured by the same  manufacturer or the use of an engine from another manufacturer shall be permitted, provided that such engine complies to MS7, e.g. (Nissan engine in a Ford Escort body);
1.5 Engines, Gearboxes and Diffs may only be utilized if 5000 units have been sold worldwide;
MS2 Safety:
2.1 No contact racing;
2.1.1 Upon contact being made unintentionally or accidentally, the following vehicle shall leave enough space for the leading vehicle to regain its position on the track;
2.1.2 Ensure that all joints in construction are welded properly – minimum 75%;
2.1.3 No in car adjustments permitted, with the exception of brake balancing;
MS3 Bumpers:
3.1 No external steel bumpers permitted, refer to internal bumper regulation;
3.2 Internal bumper construction ref Technical and Construction regulations; (CR6.6)
3.3 Only plastic or fibre glass bumpers not exceeding 3mm thick may be fitted externally for cosmetic purposes only, no steel stiffeners permitted;
3.4 No piping to protrude outside of bodywork;
MS4 Brakes:
4.1 No ABS or any other electronic driving aids is permitted;
4.2 Brakes are free
MS5 Car construction:
5.1 Front wheel drive cars may be converted to rear wheel drive cars and vice versa;
5.2 Competitors who so wish to convert rear wheel to front wheel and vice versa, shall contact the DO4SA TC’s for inspection and upon their approval the change will be noted in the scrutiny book;
5.3 Four wheel drive vehicles not permitted;
MS6 Dimension and weights:
6.1 All four wheels of the vehicle must fit within the body of the vehicle, which in turn must comply with the maximum dimensions of the vehicles;
6.2 Maximum vehicle length permitted is 5000mm. (5m);
6.3 Maximum vehicle width permitted is 2000mm. (2m);
6.4 Weight – The vehicle may be at weighed anytime and must comply to a minimum weight of 800kg including driver,
MS7 Engine:
7.1 Engines utilized will only be permitted, if more than 5000 units were sold worldwide;
7.2 Three or four cylinder 4 stroke piston driven 8 valve single cam engine, overhead valve or overhead cam permitted; and 2000cc 16 valve, running on pump fuel system.eg Nissan vvl 16v std form.
7.3 Maximum volume 2100cc 8 valves, with 2 cc tolerance;
7.4 Engines may be solid mounted;
7.5 After market fuel management systems permitted;
7.6 Aftermarket Throttle bodies permitted,
7.7 Maximum - 45mm Throttle Body per cylinder;
7.8 Maximum – 65mm single throttle body
7.9 Maximum - 48mm Carbs;
7.10 Air cleaners are free;
7.11 The rear face of the engine is where the bell housing and engine meet. The rear face will not be more than 600mm back from the centre line of the front wheels;
7.12 Front wheel drive engines to remain in the original position;
7.13 No turbo or superchargers or any form of forced induction is permitted;
7.14 Removal of alternators or charging systems is permitted;
MS8 Exhausts:
8.1 Banana Branches is allowed and exhausts must have silencers and comply with the noise level prescribed.
8.2 Maximum decibels 103,;
MS9 Fuel, Fuel management and carburetion:
9.1 Methanol, avgas, racing and pump fuel permitted.  No performance enhancing additives permitted;
9.2 Methanol lubricant may be used, such as Castrol R40 or castor oil;
9.2.1 Carburettors are open;
9.2 No slide throttle bodies permitted;
9.3 Fuel injection open for 8 valve engine and std for 16 valve engines, management systems and injectors are permitted;
MS10 Steering and suspension:
10.1 Steering racks and steering boxes, or quick ratio versions thereof, power steering from production vehicles are all permitted;
10.2 Suspension designs are free;
10.3 Rose joints are permitted;
10.4 2,3,4,5,6  link rear suspension permitted with a pullbar system;
10.5 Spring adjustments are permitted;
10.6 Gas shocks permitted within this range;
10.7 Single adjustment competition shock will be permitted;
10.8 Suspension designs are free;
MS11 Transmission:
11.1 Differentials utilized will only be permitted if more than 5000 units were sold worldwide;
11.2 Any gear ratios permitted;
11.3 After market gear sets are permitted;
11.4 Clutches open;
11.5 Any Diff ratios permitted;
11.6 Only standard differentials and gearboxes are permitted;
11.7 Locked differentials are permitted;
11.8 Limited slip differential are permitted;
MS12 Wheels and Tyres:
12.1 Normal, road legal tyres new or re-tread permitted;
12.2 Tyres must be freely available from any tyre dealer;
12.3 Tyres may not bare the inscription “not for highway use, for racing purpose only”;
12.4 Under no circumstances may any names or sizes be buffed off from the tyre walls;
12.5 Rims 13,14 or 15 inch x8J &Tyres of maximum width of 205 are permitted;
MS13 Wings:
13.1 Wings are permitted, / optional;
13.2 Wings may not exceed the body width or exceed past the rear of the vehicle;
13.3 Wing end plates to be a maximum of 500mm x 500mm; 
13.4 Vertical plates permitted shall not exceed 4 x vertical plates;
13.5 The horizontal vein cannot exceed 500min width;
13.6 Wing to be mounted from “B” pillar backwards;
13.7 Height of wing should be no higher than 300mm from the highest point of the roof to the highest part of the vane;
 

2100cc MODIFIED SALOON 8VALVES

    2013/2016
  Description   Permitted Not Permitted
1 Mechanical fuel injection.    X  
Roller rockers    X  
Changed Rocker ratio    
Aluminium fly wheel    X  
Electric water pump    
Electric fuel pump    X  
Pulley sizes    
Piston and rings    
Conrods    
10  Crankshaft    
11  Compression ratio    
12  Bore and stroke ratio (2100cc maximum)    
13  Valves    
14  Tappet covers    
15  Sump volume and design    
16  Camshaft    
         
17  Fuel pressure regulator   X  
18  Weber and Dell'orto carb parts interchangeable      
19  Clutch Plate - Button clutch plates   X  
20  Pressure plate ANY (eg. Tilton)    
21  Ignition system    
22  Branches    
23  Camshaft drive    
24  Dry Sump optional    
25  Forced induction (turbo -, supercharger)     X
26  Throttle bodies   X  
27  Wish bone suspension front   X  
28  Independent rear suspension    
29  3-4-5-6 link suspension    
30  Locked diff.    
31  Limited slip diff.    
32  Front wheel drive space frame.    
33  Induction and ram tubes.    
34  Air boxes.    
35  Sation wagon and panel van    
36  WINGS AS PER RULE    
37  Single calliper per wheel maximum 4 callipers per vehicle    
         
38  Steering mechanism    
39  Wings not to be adjusted while driving, can be adjusted in pits      
40  Removal of alternators or charging systems is permitted    

HOTROD SALOON CLASS

HR1 Eligibility of vehicle and bodies:
1.1 Any saloon car body permitted.
1.2 Any saloon body replica’s may be constructed as a space frame, with the panels being in solid shape, patchwork pieces making up a panel will not be permitted. NO cladding bodywork must be panels or a unit;
1.3 The body utilized should have been powered by a four-cylinder or three cylinder piston driven or rotary engine;
1.4 The use of an engine originating from another model manufactured by the same manufacturer or the use of an engine from another manufacturer shall be permitted, provided that such engine complies HR7;
1.5 Removal of alternators or charging systems is permitted;
HR2 Safety:
2.1 NO contact racing.
2.1.1 Upon contact being made unintentionally or accidentally, the following vehicle shall leave enough space for the leading vehicle to regain its position on the track;
2.1.2 Ensure that all joints in construction are welded properly – minimum 75%;
2.1.3 No in car adjustments permitted, with the exception of brake balancing;
HR3 Bumpers:
3.1 No external steel bumpers permitted, refer to internal bumper regulation;
3.2 Internal bumper construction, refer Technical and Construction regulations; (CR6.6)
3.2.1 Only plastic or fibre glass bumpers not exceeding 3mm thickness may be fitted, externally for cosmetic purposes only, no steel stiffeners permitted;
3.2.2 No piping to protrude outside of bodywork;
3.2.3 Internal body protection permitted;
HR4 Brakes:
4.1 No ABS or any other electronic driving aids is permitted;
4.2 Brake balancing permitted;
4.3 Brakes free with the exception of HR4.1;
HR5 Car construction:
5.1 Front wheel drive cars may be converted to rear wheel drive cars and vice versa;
5.2 Competitors who so wish to convert rear wheel to front wheel and vice versa, shall contact the DO4SA TC for inspection and upon their approval the change will be noted in the scrutiny book;
HR6 Dimension and weights:
6.1 Dimensions of the vehicle – All four wheels of the vehicle must fit within the body of the vehicle, which in turn must comply with the maximum dimensions of the vehicles;
6.2 Maximum vehicle length permitted is 5000mm; (5m)
6.3 Maximum vehicle width permitted is 2000mm; (2m)
6.4 Weight -  The vehicle may be weighed at any time and must comply to a minimum weight of 800kg including driver.
HR7 Engine:
7.1 8 Valve units
7.1.1 Limited to a maximum of 2750cc, no tolerance;
7.1.2 Carburetion is free;
7.1.3 Fuel injection is free except no slide type throttles permitted;
7.1.4 Engine management systems are permitted;
7.2 Multi Valve Units:
7.2.1 Limited to a maximum of 2450cc with a 2cc  tolerance;
7.2.2 Carburation is free;
7.2.3 Fuel injection is free except no slide type throttles are permitted;
7.2.4 Engine management systems are permitted;
7.2.5 Carburetion is free;
7.3 Rotary Units
7.3.1 Limited to twin rotor engines, without turbo;
7.3.2 Carburetion is free;
7.3.3 Fuel injection is free except no slide type throttles are permitted;
7.3.4 Engine management systems are permitted;
7.4 All rotors shall be of ferrous metal – no aluminium/titanium permitted;
7.4.1 No roller bearing eccentric shafts permitted;
7.4.2 Porting Open (Bridge and peripheral porting permitted);
7.4.3 Stock intake and throttle body permitted, with management systems;
7.4.4 No slide throttle bodies are permitted;
7.5 The rear face of the engine is where the bell housing and the engine meet;
7.5.1 The rear face will not be more than 600mm back of the centre line of the front wheels. The centre line will be measured as per diagram;
7.5.2 The centre line will be emasured as per diagram;
7.5.3 Fuel injection open, fuel management open;
7.5.4 Flywheels open in this class;
7.5.5 Clutches mandatory and open in this class;
HR8 Exhausts:
8.1 Exhaust outlet must face downwards underneath the vehicle;
8.2 All piping shall be secured with saddles, preventing exhaust pipes from coming free in the event of it breaking off;
8.3 Exhaust tail pipes passing out the side of the vehicle may only do so at a maximum height of 450mm, measured from the top of the pipe to the ground;
8.4 Maximum decibels 103,
HR9 Fuel, Fuel management and carburetion:
9.1 Methanol, Avgas, racing and pump fuel permitted no enhancements;
9.2 Only methanol lubricants may be used such as Castrol R40 or Castor Oil;
HR10 Steering and suspension:
10.1 Rose joints are permitted;
10.2 2, 3, 4,5, 6 link rear suspension allowed and a pull bar is permitted;
10.3 Spring adjustment will be permitted;
10.4 Any shock absorbers permitted;
10.5 Any production vehicle steering components may be used;
HR11 Transmission:
11.1 Limited slip and lock differentials are permitted;
11.2 Gear ratios are free;
11.3 Only production vehicle gearboxes permitted;
11.4 Gear sets are free;
HR12 Wheels and Tyres:
12.1 Normal road tyres, new or retread permitted;
12.2 Tyres must be freely available from any tyre dealer;
12.3 Under no circumstances may any names or sizes be buffed off from the tyre walls;
12.4 Tyre size; 13/14/15” maximum tyre size 205; rims 8J max.;
12.5 All tyres have to be presented at scrutineering;
HR13 Wings:
13.1 Wings are permitted, / optional;
13.2 Wings may not exceed the body width or exceed past the rear of the vehicle;  It follows that the wings shall in all instances, not protrude past the body of the vehicle;
13.3 Wing end plates to be a maximum of 500mm x 500mm;
13.4 Vertical plates permitted shall not exceed 4 x vertical plates;
13.5 The horizontal vein cannot exceed 500m in width;
13.6 Wing to be mounted from “B” pillar backwards;
13.7 Height of wing should be no higher than 300mm from the highest point of the roof to the highest part of the vane;

MIDGET CLASS A/B

MC1 Eligibility of vehicle and bodies:
Not applicable
MC2 General Safety:
2.1 Non contact Racing as herewith defined;
2.1.1 No deliberate contact, bumping, or shunting will be permitted.
2.2 Ensure that all joints in construction are welded properly;
MC3 Brakes:
3.1 No ABS or any other electronic driving aids permitted;
3.2 Braking on at least three wheels;
MC4 Car construction:
4.1 Roll cage:
4.1.1 There will be a minimum clearance of 50mm between the driver’s helmet and any part of the roll cage;
4.1.2 Pipe of minimum 30mm in diameter with a wall thickness of 2mm is used for construction of the roll cage;
4.1.3 The roll cage must enclose the driver with a minimum of 4 down pipes and 2 cross braces;
4.1.4 The chassis will be constructed of a minimum of 30mm tubular metal with a minimum wall thickness of 2mm;
4.1.5 The use of chrome molly tubing is permitted;
  Nerf bars:
4.2 Nerf bars must be fitted to both sides of the vehicle, bar size maximum
4.2.1 30mm x 2mm;
4.2.2 Nerf bars must be bolted on as per diagram using maximum 6mm bolts;
4.2.3 Must be designed to protect the full width of the rear tyre of the vehicle;
4.2.4 The Nerf bars may not protrude more than 50mm beyond the rear wheel of the vehicle;
  Bumpers:
4.3 Front bumpers are compulsory and must be constructed of pipe with a maximum 
4.3.1 measurement of 30mm x 2mm;
  Front Bumpers:
4.4 Front bumpers may not protrude beyond the width of the chassis at the front, neither may
4.4.1 they protrude more than 150mm beyond a line drawn immediately in front of the 2 front tyres – a tolerance of 50mm shall be allowed;
4.5 Rear Bumpers or push bars:
4.5.1 Shall have a maximum diameter of 30mm x 2mm – mandatory;
4.5.2 The mid bumper or push bar height shall be between 250mm and 400mm above the ground;
4.5.3 The bumpers or push bars shall be designed that they do not protrude more than 100mm from the nearest body component;
4.5.4 The rear bumper/push bar mounting points may not exceed the width of the chassis at the rear;
4.5.5 The rear vertical element of the bumper shall mount to a solid point on the vehicle or the other vertical elements;
4.5.6 The nose cone and tailpiece to be constructed to all safety measures;
MC5 Engine:
5.1 Engines utilized will only be permitted if more than 5000 units were sold in the world and only standard production engines may be used;
5.2 Three or four cylinder 4 stroke piston driven 8 valve single cam engine, overhead valve or overhead cam permitted;
5.3 Maximum volume 2100cc,  for B-class and the 12A Rotary engine.
5.4 Maximum volume 2450cc for A-class(8 or 16 valves );tba at end of 2013/2014 season.
5.5 Engines may be solid mounted;
5.6 After market fuel management systems permitted;
5.7 Air cleaners are free;
5.8 Carburation:
  Maximum 45mm Side draughts;
  Maximum 38mm choke tubes;
5.9 16  Valve Standard Unit ( auto digest):
5.9.1 Limited to a maximum of 2000cc .
5.9.2 After market engine management systems are permitted;
5.9.3 Only standard road going throttle body will be permitted;
5.9.4 No turbo or superchargers or any form of forced induction is permitted;
5.9.5 Removal of alternators or charging systems is permitted;
MC6 Exhausts:
6.1 All piping shall be secured with saddles, preventing exhaust pipes from coming loose in the event of it breaking off;
6.2 Exhaust tail pipes are permitted to pass through the back of the vehicle or to have a  turn 90 degrees before rear wheel;
6.3 Maximum decibels 103,
MC7 Fuel, Fuel management and carburetion:
7.1 No fuel enhancements;
7.2 8 Valves – methanol permitted
7.3 16 Valve 2000cc – only pump fuel permitted
7.4 16 Valve 2450cc- methanol permitted
MC8 Steering and suspension:
8.1 Only solid axles permitted;
8.2 Independent suspensions are prohibited;
8.3 Front axle shall be a solid axle type, no wishbone system shall be permitted;
8.4 Steering mechanism shall be free, with the exception of, motorbike handle bars will not be permitted;
MC9 Transmission:
9.1 Only live axle differentials permitted;
9.2 Gearboxes open in B-class;
9.3 Torque tube permitted in A-class,but not in B class;
9.4 Quick change diff permitted in A- class, but not in B-class;
9.5 Torque arm permitted;
MC10 Wheels and Tyres:
10.1 American Racers 225 x 10” x 13” to front only permitted;
10.2 American or Hoosier rear tire to be used.
10.3 All tires have to be presented at scrutineering;
MC11 Wings:
11.1 Midgets – wings may not be wider than the tyre width and/or maximum 1700mm x 750mm;
11.1.1 In other words, Wings are not permitted to be wider than the rear track of the vehicle, measuring from the left to the right rear tyres, no overhang will be permitted;
  Nose Wing:
11.2 Nose wings shall not exceed 610mm x 610mm height;
11.2.1 Nose wing end plates shall be a maximum of 610mm x 300mm(height);

FLEXI CLASS American Saloons

AMS1 Eligibility of vehicle and bodies:
1.1 Hand built bodies (Flexi’s) are acceptable on condition that the vehicles are recognizable as a car;
1.2 Only rear wheel drive permitted;
AMS2 Safety:
2.1 No contact racing.
2.1.1 Upon contact being made unintentionally or accidentally, the following vehicle shall leave enough space for the leading vehicle to regain its position on the track;
2.1.2 Ensure that all joints in construction are welded properly;
AMS3 Bumpers:
3.1 Rear Bumpers:
3.1.1 Bumper must be mounted with a max of 6 mounting points, inclusive of the mounting to the internal pipe;
3.1.2 Bumpers will have a max of 2 horizontal pipes, and 4 uprights, 2 of the uprights shall be placed in the corners of the bumper.  The other 2 uprights shall be placed at the centre point from the corner and the centre of the vehicle on both sides;
3.1.3 Bumpers may not extend forward past the centre of the rear wheels, and must be rounded back to the internal mounting pipe via a bolt-on-flange or welded arrangement where it enters the body either the upper or the lower pipe shall remain horizontal when viewed in side elevation;
3.1.4 Bumpers must be 400mm-500mm above ground level, subject to a tolerance of 50mm;
3.1.5 The 2 horizontal pipes must be 200mm apart;
3.1.6 Max size pipe used 38mm x 2mm for rear bumpers;
3.2 Sissy Bars:
3.2.1 Pipe size 38mm x 2mm;
3.2.2 500mm off the ground level, Sissy bars shall have 3 vertical supports bolted or welded;
3.2.3 Wedged shaped vehicles may retain their entry through the roof;
AMS4 Brakes:
4.1 Brakes on all four wheels;
4.2 No ABS brake systems or electronic driving aids permitted;
4.3 Brake balancing permitted;
4.4 Up to 4 pot callipers may be used on front and rear wheels;
AMS5 Car construction:
5.1 Body Work
5.1.1 Flexi / Wedge shape vehicles shall be constructed using the following sizes and thickness of materials;
5.1.2 Metal: Maximum 1mm thick;
5.1.3 Aluminium: Maximum 1.6mm thick;
5.1.4 Fibreglass: or similar composite materials are permitted: maximum 6mm thick;
5.2 Chassis:
5.2.1 Self built chassis are permitted;
5.2.2 The material to be used to construct the chassis shall be square tubing a minimum of 38mm x 38mm x 2mm;
5.2.3 The balance of construction: the material used shall not exceed the following sizes;
5.2.4 Square tubing 50mm x 50mm x 3mm and Piping 50mm x 3mm;
AMS6 Dimension and weights:
6.1 The vehicle may be weighed at any time and must comply to the prescribed minimum weights which includes the competitor.
6.2 6 Cylinders and the Lexus class minimum of 950kg including competitor;
6.3 V8 minimum of 1050kg including competitor;
AMS7 Engine:
7.1 Any modifications may be made to, the engine, gearbox and suspension;
7.1.1 Only six and 8 cylinder engines.
  Flywheels and clutches open in this class;
7.1.2 A maximum of 410 cubic inch may be used;
7.1.3 Removal of alternators or charging systems is permitted;
7.1.4 Engine Positions:
7.2 Mid-mounted motors are not permitted;
7.2.1 The engines may not be mounted behind the dashboard bars of the roll cage;
7.2.2 It follows that the bulk of the engine cannot be within the parameters of the roll cage and that the vehicle should not have a roll cage that is constructed only rearward of the midpoint of the wheelbase;
7.2.3 No part of the engine may be rearward of the midpoint of the wheelbase;
7.3 Ignition Systems:
7.3.1 Aftermarket ignition systems are permitted;
AMS8 Exhaust:
8.1 Exhaust outlet must face downwards underneath the vehicle;
8.2 All piping shall be secured with saddles, preventing exhaust pipes from coming free in the event of it breaking off;
8.3 Exhaust tail pipes passing out the side of the vehicle may only do so at a maximum height of 450mm, measured from the top of the pipe to the ground;
8.4 Branches / manifolds open;
AMS9 Fuel, Fuel management and carburetion:
9.1.1 No performance enhancing additives permitted;
9.1.2 Methanol, Avgas, racing and pump fuel allowed, No enhancements;
9.1.3 Only methanol lubricants may be used such as Castrol R40 or castor oil;
9.2 Carburation:
9.2.1 Fuel injection permitted;
9.2.2 Carburetor open;
9.2.3 No slide throttle bodies may be used;
AMS10 Steering and Suspension:
10.1 Rose joints are permitted;
10.2 Steering rack is free
10.3 2, 3, 4,5, 6 link rear suspension allowed and free;
10.4 Spring adjustment will be permitted;
10.5 Any shock absorbers permitted;and only 4 per race car
AMS11 Transmission:
  Differentials:
11.1 differentials free;
11.2 Limited slip differentials permitted;
  Gearboxes:
11.3 Gearbox, gear rations and gear sets are free;
AMS12 Wheels and Tyres:
12.1 Rally tyres are not permitted.
12.2 Any freely available tyre at a general tyre dealer permitted;
12.3 Maximum road legal tyre size 205mm, rim size up to 15, 16, 17” x 8J;
12.4 Wheels may not protrude beyond the bodywork; 
AMS13 Wings:
13.1 Wing end plate size is a maximum of 500mm x 500mm and may not be attach to the roof 
13.2 or roofpillers with a minimum gap of 100mm;
  Height of wing from the highest point of the roof is a maximum of 300mm;
13.3 Wings are not allowed to be wider than the width of the vehicle or protrude beyond the rear of the vehicle;
13.4 The horizontal vein cannot exceed 500 mm in width.

CRATE AND SUPER LATE MODEL RULES

LM1 BODY:
A. Standard Dirt Style body required. A stock appearing Monte Carlo/Grand Prix/Taurus etc. Style nose is required. NOTE: Nose and rear roof supports must match body style. For roof size and roof support size.
B. All cars must have type of car displayed on body, with 3”inch minimum letters.
C. No wedge style bodies, no roof mounted spoilers or wings.
D. No lips allowed anywhere on the nose or body.
E. All cars must have a minimum of 1-1/2”inch roll at the top of the fenders, doors and quarter panels, a sharp edge will not be allowed. Body roll must go from sides over upper body, not upper body over sides. A single strip affixed to the edge and pop-riveted will not be allowed.
F. No part of deck lid may extend beyond quarter panels at rear.
G. All cars must have a number at least 18”inches high, clearly visible and identifiable on both sides and on roof. All cars must have numbers at least 3”inches high on nosepiece in the approximate position of the headlight, and at the rear on the fuel cell, at least 6”inches high, in a visible position. This rule is for the benefit of all competitors who wish their car to be scored correctly on each lap. In the event of more than one car with the same number, where confusion may occur, a team may be asked to alter their number in some way to avoid any misunderstanding. The first car to sign in will take precedence in retaining its original number.
LM2 INTERIORS:
A. The interior bodywork of the car may be dropped to a maximum of 3”inches below the top of the doors, and must also be a minimum of 11”inches below the roll cage.
B. If a dropped interior is used, the interior panel must fasten flush at the top of the doors, and must taper gradually towards centre of car, without creating any lips. The minimum taper allowed will be 8”inches.
C. If a dropped interior is used, it must taper up, in a straight line, to the quarter-panel height and be flat and level for a minimum of 32”inches to the end of the rear deck-lid / quarter-panel / spoiler.
D. If interior is flat throughout the car, it must maintain a minimum clearance of 11”inches from the roll cage, to allow for easy exit.
E. If interior is flat, the panel must run in a straight line from immediately behind the driver’s seat to the base of the spoiler / rear of deck lid.
LM3 NOSE PIECE:
A. Nose extensions must be flexible, and must not extend outside front tyres with wheels pointing straight ahead. They cannot alter original shape of nosepiece, and must be braced with collapsible supports, No steel supports.
B. A stock appearing nose must be used; it must be made of moulded type material and must be mounded level. No material may be removed from , or added to nosepiece, no cutting from bottom, top or sides. Fender flares must not alter original shape of nosepiece.
C. Minimum heights for stock nosepieces are as follows.
Camaro 18”inches Firebird 18”inches
Avenger 18”inches Monte Carlo 20”inches
Grand Prix 18”inches Mustang 20”inches
Taurus 20”inches Intrepid RT 20”inches
D. These are the minimum vertical measurements from the bottom of the nosepiece, where sheet metal is attached.
E. Inspector to determine specs on any make not mentioned.
F. Two- Piece nose must be fastened together without any spacers to increase width.
G. Stock nosepiece may extend to a maximum of 48”inches from centre of front hub to furthest point forward.
H. Tow hooks are mandatory, whatever style of nosepiece is used.
LM4 FRONT FENDERS AND HOOD:
A. Must be level and flat from left side of car and, at least, as far back as firewall / engine plate.
B. No part of fenders or hood may be below outside bodyline.
C. Fenders may not gain height from rear to front of car.
LM5 DOORS:
A. Top of doors, on both sides, can be no higher than 36”inches from ground, with a maximum material depth of 32”inches including any skirts or body extensions.
B. At no point may doors break in towards centre of car.
C. No dishing.
LM6 ROOFS- MANDATORY:
A. All models regardless of brand will have the following roof dimensions.
Minimum- 48” wide X 46” in length.
Maximum- 50” wide X 51” in length.
B. Roof post / supports are mandatory.
C. All posts must go from roof edge to outside edge of body on both sides.
D. Rear roof post must be flat, not curved.
E. Roof supports dimensions.
F. 40” minimum to 43” maximum across the bottom. The roof supports must be aligned from side to side on all cars. The roof support windows must be cut out, same size on both sides. Holes may be filled with lexan. ( No window decal’s)
G. Front post must be flat and of uniform width from top to bottom 2”inches minimum, with a maximum 1-inch break at top and bottom.
H. No flat or odd shaped roofs.
I. A maximum 1”inch roll is allowed along the front edge of the roof, a maximum 1”inch roll is allowed along the rear edge.
J. Any sun / anti-glare shields (maximum 4”inches) deep must be hinged for easy exiting.
LM7 REAR QUARTER PANELS:
A. No offset quarter-panels except taper from both sides towards centre of car.
B. Tyre clearance from doors and quarter-panels must be a minimum of 2”inches tyre must be fully visible from the side no wheel skirts.
C. At no point may quarter-panels break in towards centre of car. No dishing.
LM8 SPOILER:
A. Rear spoilers only- must be securely attached to top of rear body along entire width.
B. No material height adjustable type spoilers allowed. Spoiler may be hinged to rear body to allow for change in angle of deflection.
C. No more than three (3) spoiler supports may be used.
D. Spoilers may be made of sheet aluminium or a transport material, such as Lexan, and of adequate strength.
E. Open motor spoiler may have a maximum size of 8” height, by 72” width.
F. Crate motor spoilers may have a maximum of 12”height, by 72”width.
G. Note: gurney Flaps or curls are allowed along the upper edge of the spoiler, but their length will be included in all measurements; Spoilers will be measured according to total length of band width of material, in any shape.
LM9 CHASSIS / FRAME:
A. No aluminium frames or front clips. All frames must be of steel construction, and must be as minimum of 2” by 2” square, or rectangular, with a minimum material thickness of 083”inch.
B. If round tube frame, tubing must have a minimum of 1-3/4” outside diameter, with a minimum material thickness of 083”inch. These frames must use 4130 chrome molly steel for construction.
C. No front bumpers allowed. Rear bumpers allowed, may be re-in forced, but no rear extensions except for push bar. Push bar must not extend more than 6” beyond rear quarter panels, and must have welded supports to frame at each end. In any case, bumper may not extend beyond centre of rear tyre.
D. Wheelbase a minimum of 103” inches.
E. No wings or tunnels of any kind allowed underneath the body or chassis of the car.
LM10 ROLL CAGE:
A. All cars must have a suitable steel roll cage protecting the driver’s compartment, including headrest.
B. Side roll bars are mandatory, and must extend into the door panels.
C. A minimum of three (3) bars must be used on the left side.
D. Each bar must be at least 1- half” in diameter, with a minimum material thickness of 083”.
E. Roll cages must be welded to frame.
LM11 DRIVER COMPARTMENT / SAFETY:
A. A full metal firewall must encompass the driver’s compartment – front, rear, sides and floorboard.
B. Driver’s seat must be of a proper racing seat design, located on left side of car and securely attached to frame.
C. A full racing seat belt harness must be used, harness must be secured to frame, not seat.
D. All cars must have a quick release type steering wheel.
E. All cars must have working starter, operated from inside car.
F. Battery must not be located in driver’s compartment.
G. All drivers must wear full fire resistant uniforms.
H. No electronic or computer controlled devices or data acquisitions systems allowed.
LM12 FUEL CELL / FUEL:
A. An approved fuel cell must be securely mounted in the trunk area of the car, inside a .20 gauge metal box supported by a minimum of two 2”inch by 1/8”inch steel straps.
B. All fuel cells must be completely visible from rear of car.
C. Fuel cell must not be mounted lower than bottom of quick-change rear end.
D. Only gas and Alcohol, no nitrous oxide, nitro methane or other nitrate additives.
LM13 TRANSMISSION:
A. Drive train must have transmission, mounted on rear of engine- no direct drive or in-out boxes.
B. Any transmission, with working forward and reverse gears permitted, and must lead to one drive shaft.
C. All drive shafts must be painted white or silver, and must be protected by a minimum of one (1) safety hoop or a sling.
LM14 REAR END:
A. Any type of rear end / differential permitted.
LM15 BRAKES:
A. All cars must have operational four wheel braking.
B. No carbon fibre brake parts will be allowed.
LM16 WHEELS:
A. Any brand or type of wheel allowed must be mounted with lug nuts.
B. No knock-off or centre locks wheels.
C. Maximum wheel width- 14”inches.
D. Maximum width, side to side on outside of front tyres 90”inches.
E. Maximum width, side to side on outside of rear tyres 88”inches.
LM17 TYRES:
A. Tyre rule Hoosier + American Racer 1350 TO 1600 only.

MUFFLERS REQUIRED 

LM18 EXHAUST/MUFFLERS:
A. No modifications and/or alterations to mufflers will be allowed.
B. Collector type headers required.
C. All cars must register under 103 decibels.
LM19 ENGINES:
A. Engine setback will be 6”(six) inches maximum for (B) engine and 8”(eight) inches maximum for (A) all cast iron head & block engines measured from centre of top ball joint to most forward spark plug. (1 inch Tolerance)
B. All heads are limited to 1 (one) spark plug and 2(two) valves per cylinder.
C. No titanium, or other “exotic” material, crankshaft or connecting rods allowed.
D. There must be an inspection hole, minimum 1”inch diameter in oil pan for Rod & crank inspection or be willing to pull oil pan for inspection.
E. One four-barrel carburettor only of any manufacture. Fuel injections are permitted; NO blowers and turbo-charges are allowed.
F. Mechanical fuel pumps, electric fuel pumps and no pressurized fuel systems.
G. Magnetos permitted, but all cars must have an operating self-starter.
A- ENGINE:2200 LBS B- ENGINE:2300 LBS

Unlimited cubic inch limit

All cast iron heads and block

12”Spoiler allowed

Engine set back (1 inch tolerance)

Unlimited cubic inch permitted

Cast iron or Aluminium blocks

Open heads, 8”spoiler

Engine Set back (1 inch Tolerance)

LM20 WEIGHT:
A. Crate / with driver 2200lbs.
B. Super / with driver 2300lbs.
C. Minimum weight will be measured with driver in car.
D. Attached weight must be securely bolted to frame with half” or larger bolts and painted white or silver with car number clearly painted on them.
E. No weight may be attached to rear bumper.

CRATE LATE MODEL ENGINES:-B

A. Max 450 HP and 12" spoiler

SUPER LATE MODEL ENIGNES:-A

A. Engine are open and 8" spoiler 

SUPER AND CRATE LATE MODELS:

A. Engine setback will be 6"inches from centre of top ball joint to the most forward spark plug on the jig-frame car. 1 inch tolerance on engine setback.

GENERAL DIRT OVAL RULES:

1. The decision of the CoC is final. It is not always possible to construct rules to fulfil everyone’s needs and desires. Should a competitor decide to compete on on race day, he/she has to adhere to the rules outlined by the CoC.
2. Cars can be weighted at any time before, during and after a race on request of the CoC.
3. Anyone caught fighting in the pit area will be suspended from the pit area, First offense 0ne year, Second offense two years, Third offense suspended from DO4SA.
4. Any driver or pit crew member that enters another driver’s pit area will be deemed the aggressors.
5. Away from either driver’s pit area, both drivers or their pit crew members will be considered the aggressor, then the aggressor or aggressors will receive suspension.
6. Drivers should be aware that they will be held responsible for all members of their race teams.
7. Any driver who enters the grandstand area and / or proceeds to enter without invitation and conducts him or herself in any unsportman like manner may be suspended.
8. Any car or cars caught illegal will be suspended from the event.
9. Refusing to obey officials, could result in a suspension of the event.
10. When  a driver is suspended, his suspension will start at the next home club race.
11. No work on race cars after the white flag is been shown by the stater, when the white flag is been shown, u are under staters orders and there are then no repair time on track.
12. Sign-in, it is the responsibility of the driver to sign-in under the correct division and only one division(class) per race car. Driver’s name competing must match the sigh-in sheet. In the event of a driver change, officials must be notified so sign-in sheet can be changed prior to the start of any competition if the drivers division. No changes will be allowed after drivers briefing. You may also enter another  division(class) , but will not be scored in that division(class)
13. Club point will be awarded as follows: 1-24; 2-20; 3-18; 4-16; 5-14; 6-12; 7-10; 8-8; 9-6; 10-4; 11-2.
14. When a driver pull out of the pack before the starting flag drops, it will be considered as a jump start and put to the back of the pack, for a second offense the driver will be send to the infield.

“What is not specifically permitted is disallowed”

This means that you may only do something if the rules say you may. Competitors and officials alike shall adopt the following principle when reading and applying the rules: They should only be concerned with the normal plain meaning of the wording of the regulations and shall pay no attention to any claim as to what the regulations were intended to mean.

Asked the DO4SA TC if you are in doubt of a rule.