COMPETITION ALTERED CLASS REGULATIONS NB: All text in red constitute the new rules for 2008 This category has been derived from overseas and is based on the altered wheelbase hot rods. It is specifically for vehicles designed only for Drag Racing with highly modified replica production automotive bodies. Body, engine drive train, chassis, etc. may be altered, modified or relocated in compliance with the following class requirements. DESIGNATION: TF/CA, AA/CA, BB/CA, CC/CA, A/CA, B/CA, C/CA, followed by competition number. The minimum weight for any vehicle in this category is 750kg including the driver. Note: One cubic inch measures 16.3872 cubic centimetres.

WEIGHT BREAKS C/CA Any engine up to and including six (6) cylinders, normally aspirated. B/CA Small block V8, normally aspirated. A/CA Big block V8, normally aspirated. CC/CA Any supercharged (one form only) engine up to a maximum of 370 cubic inches that incorporates a standard production block. Only true wedge configuration cylinder heads including aluminium and aftermarket castings are permitted. BB/CA Any supercharged (one form only) engine that exceeds 370 cubic inches and has cast iron production block and heads. Only standard stroke crankshafts are permitted and a maximum cubic inch capacity of 454 + .100 overbore is allowable. AA/CA Any supercharged (one form only) engine for which the cubic inch capacity exceeds 454 + .100 overbore or any supercharged (one form only) engine incorporating either/or aluminium block or heads. Any stroke/bore combination is allowed. Hemi heads do not incur a penalty. Maximum cubic capacity is 565 cubic inches (9258 cubic centimetres). TF/CA Any supercharged vehicle of a maximum 500 cubic inches (8193 cubic centimetres) using Nitromethane in the fuel, regardless of the percentage. Hemi heads and/or any form of supercharging do not incur a penalty in this class.

ARTICLES Engine Article Componentry CAL 1 : ENGINE A Must be an automobile type engine. Year make and model are optional. Any modification may be made to the engine; however, no more than one engine is permitted. Any engine setback is allowed. Rear-engine location is not permitted. Maximum two magnetos, two spark plugs per cylinder. CAL 2 : EXHAUST SYSTEM: (Refer to the Safety Regulations). CAL 3 : FUEL - Any fuel complying with the Safety Regulations CAL 4 : FUEL SYSTEM A Any carburetion or fuel injection system is permitted. Maximum of two fuel pumps. (Refer to the Safety Regulations). CAL 5 : SUPERCHARGERS A Only one form of supercharging is allowed, either mechanical belt driven (maximum 14-71 supercharger or turbocharger or nitrous oxide may be used but not a combination. All belt-driven supercharger devices must have as a minimum a supercharger restraint system in conjunction with aluminium shear bolts (strip studs) at all mounting points as mandatory to prevent supercharger from being blown free of engine. (Refer to the Safety Regulations). Chassis, Body and Componentry CAL 6 : AIR DAM 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. CAL 7 : BALLAST - (Refer to the Safety Regulations) CAL 8 : BATTERIES A All wet cell batteries must be isolated from the driver and must be securely mounted. (Refer to the Safety Regulations). CAL 9 : BELLYPANS A Belly pans are permitted but streamlining may not be added. CAL10: BONNET A Optional, however, flash shields are required over any open carburettor systems. (Refer to the Safety Regulations). CAL11 : BODY 11.1 Body and cowl must be constructed of metal, fibreglass or other flame resistant material. All replicas and/or bodies in this section must originally have been produced by an automobile manufacturer before 1965. 11.2 Tops may be chopped and bodies channelled, sectioned, trimmed or lengthened but vehicle body must resemble the original manufacturer's shape. Excessive narrowing or other modifications are not permitted. Open front wheels are mandatory. Enclosing wheel openings or use of wheel fairings is prohibited. Rocker panel extensions may be used as long as they meet ground clearance requirements. Body setback is permitted but a limit of 500mm as measured from the rear axle to the centre of the original wheel well locations is a maximum. 11.3 All vehicles in this section must have at least one means of exit and the driver must be able to escape unaided from a fully belted position in a maximum of 25 seconds without tilting the body. CAL12 : DRIVER A The driver must sit behind the engine on the centre line of the vehicle. Driver's body must be completely within the vehicle's body contour and no part of the driver may extend behind the rear axle. Any vehicle that has no cross member above the driver's legs must have a strap or device to prevent driver's legs from projecting outside the chassis. Properly adjusted arm restraints are mandatory in this category of Racing. CAL13 : FRAME A Any type of chassis allowed, however, tubular "space frame" construction methods are the accepted practice. Minimum wheelbase length is 2336mm 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). CAL14 : HEAD PROTECTOR CAL15 : TARPAULIN A Covers may be used over the driver's compartment and or "pickup" beds only if they do not restrict the entry of exit of the driver. Metal, fibreglass or other flame resistant material must be used. CAL16: RADIATOR/GRILLE: This is optional. CAL17: UPHOLSTERY: Optional. (Refer to the Safety Regulations) CAL18: WINDSHIELD AND WINDOWS A A windscreen or windshield is required in all circumstances. Windscreens in all coupes or sedans must maintain a minimum 100mm height measured vertically. (Refer to the Safety Regulations). Drivetrain CAL19 : BRAKES - (Refer to the Safety Regulations) CAL20 : CLUTCH - (Refer to the Safety Regulations) CAL21 : DRIVELINE COVER 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. CAL22 : FIRE EXTINGUISHER All TF/CA, AA/CA, BB/CA and CC/CA vehicles must be equipped as per extinguisher regulations for Funny cars. (Refer to the Safety Regulations). CAL23 : FLYWHEEL - (Refer to the Safety Regulations) CAL24 : PARACHUTE - (Refer to the Safety Regulations) 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 TF/CA, AA/CA, BB/CA, CC/CA 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). CAL25 : REAR END: (Welded spider gears are not permitted). CAL26 : SAFETY BELTS/HARNESSES: (Refer to the Safety Regulations). CAL27 : SAFETY EQUIPMENT For all driver and vehicle safety, refer to the "Safety Regulations" chapter. CAL28 : STARTING - Push Starts are not permitted CAL29 : STEERING - (Refer to the Safety Regulations) CAL30 : SUSPENSION Operative automotive type front suspension is required on vehicles less than 2900mm wheelbase. Solid front ends allowed on 2900mm or more wheelbase. Solid rear ends are permitted on all vehicles in this section. CAL31 : TRANSMISSION Optional. Vehicles must employ some positive system to disengage engine from final drive. Air shifter bottles must be permanently mounted. CAL32 : WHEELS / TYRES Wheel wells may be enlarged to permit the use of larger tyres only if the new wheel wells are constructed to completely isolate wheels and tyres from driver's compartment.