1.1 In respect of the age of the competitor this is an open formula with a minimum age of 16 years.

1.2 This class is for Dirt cars with six or eight cylinder engines and where standard bodies, semi space frames

and space frames may be used.

1.3 The vehicle shall comply with the general vehicle rules (CR 1 to CR 15), the safety regulations (CR 20 to

CR 36) and the Construction regulations applicable to saloon vehicles (CR 37 to CR 55).

2.1 In order for an engine or any component thereof to be used 5000 of the particular make and model

(reasonable facelifts included) had to be sold internationally. The onus is on the entrant to prove the source

and history of a vehicle or component.

2.2 Throughout reference is made to standard parts or components. Please see CR 1.5 above. For clarity this

means that when the rules for this class specify a standard part it may be from any vehicle that complies

with this choice criteria and need not be a combination with the body shell or engine.

3.1 The dimensions of Original road going vehicles shall remain according to the specifications of the

manufacturer / as per the Auto Data Digest with a tolerance for accident repair accepted.

3.2 Semi space frames – as for original road going vehicles.

3.3 Space frame shall not exceed a length of 5.2 metres and a width of 2.1 metres.

3.4 The height at boot and bonnet level shall not exceed 1000 mm. This height shall include any aerodynamic

device incorporated into the boot lid area.

3.5 Weight – The vehicle must comply with the variable regulations at ASD 18.

3.6 The maximum wheelbase allowed is 3050mm.

4.1 See CR 37 to CR 39.

4.2 Space frames permitted – This means Original road going vehicles and semi space frames are permitted and

are allowed to make the same modifications that are permitted for space frames, subject to generally

specified safety standards.

4.3 Only rear wheel drive permitted. However if a car has been converted from front wheel drive to rear wheel

drive it is regarded as a space frame.

4.4 This is a saloon class and therefore the vehicle shall comply with the general regulations for saloon classes.

4.5 The following are the maximum sizes permitted for materials used in the fitment of the bodywork :

4.5.1 Sheet Metal - 1.0mm

4.5.2 Sheet Aluminium - 1.6mm

4.5.3 Fibreglass Panels - 6.0mm

4.5.4 Square Steel Tube - 75 x 75 x 3 mm

4.5.5 Round Steel Tube - 50 x 3 mm

4.6 This class is exempted from the application of CR 22.7 provided that the specific vehicle has a opening roof

that is wider than the driver / medical evacuation board.

5.1 The vehicle and driver must comply with each and every general safety regulation – see CR 20 to CR 36.

5.2 Roof type door flaps are permitted however the driver must be able to exit the vehicle from another aperture

as per CR 2020.2.

6.1 Bumpers may not be part of the chassis. This means that there must be pipe work connecting the bumpers

to the main chassis structure.

6.2 Bumpers must be mounted with four mounting points on the front of the car and six at the rear and may be

bolted or welded into position.

6.3 Bumpers must have at least a single horizontal bar but no more than two horizontal bars and four vertical

bars.

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6.4 The bumper horizontal bars shall be between 130mm and 170mm apart and the centre line of the bumper at

the centre of the bumper shall be 500mm from ground level subject to a tolerance of 50mm. If a single bar

is fitted it must comply with these measurements.

6.5 The front bumper may not extend rearward of the rear edge of the front tyres and must be rounded back to

the internal bumper mounting tube via a bolt on flange against the fender.

6.6 The rear bumper may not extend forward of the centre of the rear tyres and must be rounded back to the

internal bumper mounting tube via a bolt on flange against the fender.

6.7 Nerf Bars are permitted along the sides of the vehicle. The bar shall be fitted in the horizontal plane between

the top edge of the tyre and the centre of the hub. The maximum pipe diameter is 38 mm with a wall

thickness of 2 mm.

7.1 The vehicle must comply with CR 8.

7.2 Beam type or split beam type front axles are permitted.

7.3 Only standard commercially available steering racks and steering boxes or quick ratio versions thereof as

fitted to vehicles described in ASD 2.1may be used.

7.4 Suspension design is free but limited to either standard suspension uprights as fitted to vehicles described

in ASD 2.1 or locally fabricated components. Adjustable spring platforms may be fitted. Competition

springs are permitted.

7.5 The use of rose type joints is permitted.

7.6 Only South African made shock absorbers may be used. No modifications are allowed to the shock

absorbers. Limit is 4 in total, one per corner.

7.7 No remote shock absorber reservoirs may be used.

7.8 Power steering is permitted.

7.9 Suspension may be designed with an off set.

7.10 A maximum of 6 links may be used on the rear suspension.

7.11 Independent rear suspensions are permitted, provided they were fitted to a production vehicle distributed in

South Africa by a recognised motor manufacturer.

7.12 No quick change midget or sprint car differentials allowed.

8.1 The vehicle must comply with CR 5 to CR 7.

8.2 Tyre and wheel restrictions:

8.2.1 Maximum wheel diameter is 15”

8.2.2 Maximum tyre tread width is 205 mm.

8.3 Tyre choice: Any road legal tyre within the above sizing that has a price of less than R930 may be used.

9.1 The vehicle must comply with CR 10.

9.2 Only standard components are permitted at the wheels.

9.3 The master cylinder is free.

9.4 Drum brakes may be converted to disc brakes.

9.5 In view of the wedge construction of the cars in this class the brake light shall be fitted just below the

horizontal section above the boot area, but shall be forward of the rear bumper.

10.1 The rear face of the engine block must be forward of the centreline between the front and rear axles. See

CR 47 above.

10.2 Only 6 and 8 cylinder engines allowed.

10.3 The engines must be built in terms of the open engine regulations to be found at CR 18 above

11.1 The vehicle must comply with CR 11.

11.2 Transmissions are free except that only standard components as fitted to vehicles commercially sold in

South Africa may be used.

11.3 Flywheels and clutches may be removed but the vehicle must be able to be started and moved forward

without outside assistance.

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12.1 Refer CR 9 and CR 33.

13.1 Body work shall comply with CR 38 and CR 39.

13.2 Space frame vehicles (flexi) with wedge type bodies are allowed.

13.3 Space frame vehicles (flexi) with replica saloon bodies are allowed

13.4 Slots or holes to aid air flow are permitted in the rear of the vehicle.

14.1 Wings may not protrude beyond the width of the car.

14.2 Wing end plates may not exceed a maximum of 2500cm2 in surface area and may be offset. In any event

the maximum height of the end plate shall be 500mm. This is clarified to permit the end plates of the wings

of wedge bodied vehicles to be incorporated into the body of the car.

14.3 The uppermost edge (attack edge) of the horizontal vane shall not be more than 300 mm above the roof line

of the vehicle.

14.4 Wings may not protrude forward of the centre of the wheelbase.

14.5 Only a single horizontal element is permitted.

14.6 The width of the horizontal section shall not exceed 300mm.

14.7 There shall be a minimum of 100mm clearance between the horizontal element and any part of the vehicle.

This is clarified to mean that the 100 mm clearance must exist between the horizontal element of the wing

and any other horizontal part of the vehicle.

15.1 Methanol, Aviation fuel (LL100), pump fuel (with octane booster) and Race fuel allowed.

15.2 Fuel injection and carburettors are free subject to CR 12.

15.3 Turbo chargers are permitted on 6 cylinder engines with no more than 2 valves per cylinder.

16.1 Ignition systems are free.

16.2 Engine management systems are permitted but must comply with CR 12 above.

17.1 The number shall be placed on both sides of the vehicle, the roof and on the visor panel (for line up

purposes).

17.2 The number on the side may be moved to the wing end plates.

18.1 Minimum Weight, including the driver - 1050 kg

19.1 The radiators of vehicles from this class that participate on tar may remain in the cockpit.