FUNNY CAR CLASS REGULATIONS
NB: All text in red constitute the new rules for 2008
This category is reserved for four wheeled vehicles with replicas of production coupe or sedan bodies mounted on a chassis solely for Drag Racing. Engine, drivetrain and chassis may be modified, altered relocated or re-fabricated if in compliance with class requirements. Supercharging, turbocharging, fuel injection or any form of carburetion is permitted. Nitrous oxide is permitted in some cases. The minimum weight for any vehicle in this category is 750kg including the driver.
Note: One cubic inch measures 16.3872 cubic centimetres. The minimum weight for any vehicle in this category is 750kg including the driver.
DESIGNATION: C/FC, B/FC, A/FC, TA/FC, TF/FC followed by the competition number.
WEIGHT BREAKS
C/FC
Up to 6901 cubic centimetres inclusive of "capacity increases".
B/FC
From 6902 cubic centimetres to 8270 cubic centimetres inclusive of "capacity increases."
A/FC
8271cc to 10130cc (inclusive of capacity increases) supercharged with Roots-type High Helix supercharger, methanol burning. 900kg minimum weight. Nitrous or screw-type supercharger not permitted.Or 10131 to 13600 inclusive of capacity increases supercharged with Roots-type supercharger. (Not High Helix). Methanol burning. 1000kg minimum weight. Nitrous or screw-type supercharger not permitted.
TA/FC
0.110 or more kg's per cubic centimetre, supercharged, methanol burning only, 818kg's minimum weight.
TF/FC
Any supercharged vehicle of a maximum 8193 cubic centimetres using nitromethane In the fuel regardless of the percentage. Hemi heads and/or any form of supercharging do not carry a penalty in this class. Vehicles in this class will only do exhibition runs.
A
 Only one (1) form of supercharging is permitted. Whether it be mechanical, belt driven supercharging, turbocharging or nitrous oxide is the entrant's option, if class allows it.
B
 Engine capacity (where applicable) is increased as follows:
TURBOCHARGING
-50%
SUPERCHARGING:
ROOTS TYPE:
-40%
ROOTS TYPE (HIGH HELIX):
-50%
NITROUS OXIDE:
-30%
HEMI/PENTROOF HEADS:
-20%
4 VALVES / CYL:
-20%
C
 The use of nitromethane fuel is restricted to Top Fuel Funny Car (TF/FC) or exhibition vehicles only.
D
 Wankel rotary engines will be assessed at 1.8 x the swept volume.
E
 Screw-type superchargers are restricted to TAF only.
ARTICLES
FC 1 : AEROFOIL
A
 This must be securely mounted and braced. If adjustable, a positive locking device must be used to prevent accidental movement.
FC 2 : ARM RESTRAINTS: (Refer to the Safety Regulations).
FC 3 : BALLAST: Permitted. (Refer to the Safety Regulations).
FC 4 : BATTERY: Permitted. (Refer to the Safety Regulations).
FC 5 : BODY
A
5.1
 Must be a full body of type originally produced by a known manufacturer. Bodies may be lengthened, narrowed and streamlined but should resemble the shape of the original. Tops may be chopped a maximum of 100mm. Complete removal of the roof section is not permitted. Front overhang not to exceed 1016mm measured from spindle of front wheel. Vehicles must be equipped with a grille or simulated grill of same configuration and design for the specific vehicle body utilised.
A
5.2
 Four standard type fenders are required. Alterations to permit axle relocation are permitted. Front fender extensions for tyre clearance may not exceed 150mm as measured from a flat portion of the fender line to the top of the extension.
A
5.3
 A full bonnet panel must also be incorporated into the one-piece body; however, a hole through which injection, supercharger or carburettors may protrude is allowed. A box cover, full scoop or flash shield must be used to prevent fuel from being siphoned back into the driver's face.
A
5.4
 All bodies with enclosed windows must incorporate a minimum 500mm x 500mm escape hatch through which a driver must be able to exit from a fully belted position unaided in a maximum of 30 seconds without tilting the body. (Refer to the Safety Regulations).
FC 6 : BODY LATCHES/HOLD DOWN DEVICES
A All body hold down devices must be easily identifiable and accessible on the front of the body. (Refer to the Safety Regulations).
FC 7 : BRAKES
A Minimum requirement of two rear wheel hydraulic brakes. Brake lines must be shielded in specific areas of the chassis. (Refer to the Safety Regulations).
FC 8 : CLUTCH - (Refer to the Safety Regulations)
FC 9 : DRIVER
A The driver's seat must be located within the confines of the vehicle's passenger area, not in the engine compartment or boot. The driver must be completely isolated from the engine, wheels, tyres, etc. All vehicles are required to have at least two openings for driver entry/exit (i.e. side window spaces, escape hatch, etc.). A driver must be able to exit from a fully belted position unaided in a maximum of 30 seconds without tilting the body. (Refer to the Safety Regulations).
FC10 : DRIVELINE COVER
A In addition to the floor or belly pan, drive shaft failure loops must be fitted. A 2mm thick steel plate extending the full length of the driveline and securely fastened to the frame rails or suitable cross member is mandatory.
FC11 : ENGINE
A Any internal combustion automotive engine is allowed. Only one engine is permitted. Any engine setback is allowed.
FC12 : EXHAUST: (Refer to the Safety Regulations).
FC13 : FIRE EXTINGUISHER SYSTEMS: (Refer to the Safety Regulations).
FC14 : FIREWALL: Mandatory. (Refer to the Safety Regulations).
FC15 : FLYWHEEL: (Refer to the Safety Regulations).
FC16 : FLYWHEEL SHIELD: (Refer to the Safety Regulations).
FC17 : FRAME/CHASSIS
A
17.1
 Any type of frame construction is permitted. Material recommended is tubular steel or chrome moly. Roll cage must be an integral part of the framework. (Refer to the Safety Regulations for minimum diameter and wall thickness tubing requirements).
A
17.2
 The minimum wheelbase length is 1930mm and a maximum of 3175mm will be applied. Wheelbase variation from left to right is a maximum of 50mm. A full six-point roll cage must surround the driver capsule using a minimum 38mm x 3mm wall thickness mild steel tubing and driver's helmet must be at least 75mm behind the front roll cage bars. (Refer to the Safety Regulations).
A
17.3
 Rear tread width must be such that any part of the tyre is not outside of the bodyline or more than 75mm inside the body line. Front tread width must be such that the tyre is located no more than 100mm inside the bodyline. Measurements will be taken from the outside edge of the tyre to the closest inside edge of the body.
FC18 : FUEL SYSTEM
A Where the engine is located in the rear of the vehicle and the fuel supply is in the front or vice versa, all tanks and fuel lines must be totally isolated from the driver's compartment through the use of sub-flooring and/or steel braided fuel lines. Any carburetion or fuel injection system is allowed, maximum two fuel pumps.
FC19 : HEAD PROTECTOR: Mandatory. (Refer to the Safety Regulations).
FC20 : LIQUID OVERFLOW/CATCH TANKS
A All machines with any type of liquid capable of dumping or spilling on the track surface, must have a "catch can" to recover the excess liquids. Minimum capacity is one-litre. Overflow may be routed into headers on cars, which are supercharged or burn nitro or methanol.
FC21 : VENT TUBES/BREATHERS
A
Mandatory on all mechanically supercharged Funny cars. Where used, the tubes must terminate into an acceptable, permanently attached catch-tank with a capacity of four litres. The catch tank must be able to keep overflow off the track and a sight glass or tube is recommended to verify that the tank is empty prior to each run.
FC22 : REAR END: (Welded spider gears are not permitted).
A Quick change rear-ends are acceptable. Locked (spool type) rear-ends are permitted. Fully floating hubs are required in conjunction with locked rear-ends in any of the supercharged or TF/FC, TA/FC and B/FC classes. Rear wheel drive only. The attention of competitors is drawn to the possibility of handling hazards in the event of an axle shaft breaking while a vehicle is fitted with a locked rear-end. (Refer to the Safety Regulations).
FC23 : SAFETY BELTS/HARNESSES: Mandatory. - (Refer to the Safety Regulations).
FC24 : SAFETY EQUIPMENT - (Refer to the Safety Regulations).
FC25 : SPOILERS
I Spoilers are permitted front and rear. Airflow past the underside of the spoiler other than hinged taillights is prohibited. A minimum of 75mm ground clearance is required between spoiler and track. (Refer to the Safety Regulations).
FC26 : SUPERCHARGERS: (Refer to the Safety Regulations).
FC27 : SUSPENSION
I Front and rear suspension is optional front and rear. Wheelie bars may be fitted but must run non-metallic wheels.
FC28 : THROTTLE
I On rear-engine vehicles, the throttle actuating method must be protected and shielded. (Refer to the Safety Regulations). It is mandatory that a positive throttle return device, (Refer to the Safety Regulations). And fuel cut-off is fitted in the event of the throttle pedal overriding or failure of the throttle linkage.
FC29 : TRANSMISSION/GEARBOX
I Optional. Vehicles must employ some positive system to disengage engine from final drive. A clutch hold down device is suggested on all vehicles without transmissions or with in-out boxes. Air shifter bottles must be permanently mounted. (Refer to the Safety Regulations).
FC30 : UPHOLSTERY
I Optional, however, only steel or aluminium is allowed in the driver's compartment. Magnesium is prohibited. Any upholstery must be of non-flammable material.
FC31 : WHEEL WELLS
I Wheel wells (tubs) may be enlarged to allow us of larger wheels and tyres. If new wheel wells are constructed, they shall completely cover the inside and top 180° of the tyre and wheel as well as completely isolate the driver's compartment.
FC32 : WHEELS/TYRES
II Any size slicks are permitted however maximum width for rear rims is 406mm. For front tyres, (Refer to the Safety Regulations).
FC33 : WINDSHIELD AND WINDOWS
II A windscreen or windshield, refer to the Safety Regulations, Is required in all circumstances. Side windows are optional, however, if fitted they must be clear and provide a 150mm diameter opening adjacent to the driver. (Refer to the Safety Regulations).