CLASS 7 Four Wheel Drive (Production) - Vehicles with engines up to 6000cc

For more detailed and specific information consult Specific Requirements of Off Road Vehicles in Section 12 of the CAMS Manual of Motor Sport.  For detailed requirements of the General Requirements click here.

BODY
Bumper bar may be replaced with a bullbar.
Flare/wheel arch extensions permitted.
Roof vents may be fitted in the forward third of the roof
Internal accessories are free providing they don't affect the mechanical performance of the engine, steering, transmission, road holding or braking.

BRAKES
Original braking system to be retained unmodified except for the composition of the brake pads/linings and the addition of power assistance.

CHASSIS
Original chassis must be retained.
Strengthening may be added.
Material may be added to enable the addition of dampers

ENGINE
Original engine block may not be changed.
Cylinder bore may be increased to largest oversize piston available.
Planing of the cylinder block is allowed.
Pistons, piston rings, gudgeon pins and securing mechanisms are free.
Original crankshaft and connecting rods must be retained.
Material may be removed from the original flywheel.
Sump, filter, cooler and all lines are free.
The carburettor and linkages are free.
A carburettor adaptor plate may be fitted
Air filter and associated fittings are free.
The exhaust system is free.
Camshafts are free.
Engine mounts are free.
Fuel pumps are free but may not be in the passenger compartment.
Fuel lines and fuel filters are free.
Anti-pollution equipment may be removed.
Fans are free.
Radiators are free
Ancillary belts and pulleys outside the engine are free.
The thermostat is free.
If the vehicle is originally fitted with a turbocharger or supercharger the induction pressure is free.
Fuel injection systems may be modified subject to SR 7.5
Fuel injection cannot be retrofitted unless available for that model.
Valves, valve springs and guides are free.

FINAL DRIVE
Ratios must be as available from the manufacturer.
Diff action is free.
Diff and transfer case must be capable of driving all four wheels.

FUEL TANK
Fuel tank type, location and capacity is free.
A fuel tank must be separated from the occupants by a flame and liquid proof bulkhead.

GEARBOX
Clutch lining material is free.
Oil cooler and pump may be added.
Mounts are free.
Original housing and configuration must be retained.
Ratios must be as available from the manufacturer.

GENERAL
Nuts, bolts and screws may be replaced by other types.
Gaskets are free.
Make and material of bearings are free provided they are of original type and dimension.
Oil, water and brake lines are free.
Lines passing through bulkhead must be grommeted.
Relays and fuses may be added.
Electrical cable is free.
Make and capacity of the battery is free.
Capacity of the alternator is free.
Nominal voltage of the original electrical system must be retained.
Ignition components are free providing the original system is retained.
Electronic ignition may be fitted.

INTERIOR
Interior trim, seats and floor coverings are free.
Instruments may be added.
The steering wheel is free.

ROLL CAGE
Must have a roll cage as specified in Appendix J.

SUSPENSION
One additional shock absorber per wheel may be added.
Original shock and mounting may be moved only to permit fitment of additional shock absorber.
Shock absorber or mount may not protrude through body panels.
Suspension and spring mounting points may be strengthened.
All suspension components may be strengthened.
Spring hangers and shackles may not be reversed or lengthened.
Springs are free but must be of original type, i.e. coil, torsion bar, leaf.
Spring mounts must be retained in their original position.

WHEELS
Wheels are free subject a maximum width of 8".

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