12th-Nov-21, 02:29 PM
Trans Am & NASCAR (Class D)
General Requirements- Any car of any engine capacity which took part in Trans Am, NASCAR or Bathurst 1000 between 1973 until 1980. Must be 1/32 scale.
Cars can be RTR branded slot cars, kit based or scratch build.
Class D Rules: (All parts must be commercially available)
D1) Motors
Free choice of motor type with a manufacturer’s rating not exceeding 20,000rpm at 12 volts. Orientation of the motor free.
D2) Gears
Free choice of gears and gear ratio
D3) Wheels
Free choice of wheels but they must be representative of the type fitted in scale to the real models with representative wheel inserts fitted.
D4) Tyres
Front tyres – Any rubber or polyurethane tyre compound can be used with minimum wheel with tyre diameter of 17mm and width minimum of 6mm
Rear tyres – Any rubber or polyurethane tyre compound can be used with minimum wheel and tyre diameter of 19mm and maximum width of 10mm
D5) Axles
Free choice but must not protrude outside wheel hub.
D6) Slot Guide
Maximum guide blade depth 6mm and 1.55 mm thick
Any car may have an easy fit guide replaced with a conventional wired guide with the necessary minimum modifications to the chassis.
Motor wires and braids are free choice.
D7) Lights etc
Any car fitted with lights may have the light bulbs, LED’s, wiring, PC board and other fittings removed.
D8) Ballast
Ballast weight may be added to any car as desired, provided that it is placed within the confines of the body and chassis and is firmly glued in place.
D9) Body
All body shells must be made of hard plastic, glass fibre, resin or 3D printed. Vacuum formed lightweight shells are not permitted.
Windscreen and window mouldings must be provided but can be made of clear vacuum formed plastic. Rear view mirrors may be omitted but all other details parts must remain as fitted, wheel inserts must be fitted.
Vaccuum formed or lexan interiors are permitted but must be realistic and be a 3d representation of driver and interior. Wheel inserts must be fitted.
D10) Chassis
The chassis can be as that which was supplied as a RTR model, alternatively the use of 3d printed, universal chassis or brass constructed is permitted.
D11) Ground clearance and dimensional requirements
Minimum motor to track clearance 1.5mm. All four tyres must touch the track surface when placed on the track and all four wheels must rotate.
Maximum overall outside tyre wall width 64mm
And I have attached the car list,
So plenty to think about..........ummm what shall I choose
General Requirements- Any car of any engine capacity which took part in Trans Am, NASCAR or Bathurst 1000 between 1973 until 1980. Must be 1/32 scale.
Cars can be RTR branded slot cars, kit based or scratch build.
Class D Rules: (All parts must be commercially available)
D1) Motors
Free choice of motor type with a manufacturer’s rating not exceeding 20,000rpm at 12 volts. Orientation of the motor free.
D2) Gears
Free choice of gears and gear ratio
D3) Wheels
Free choice of wheels but they must be representative of the type fitted in scale to the real models with representative wheel inserts fitted.
D4) Tyres
Front tyres – Any rubber or polyurethane tyre compound can be used with minimum wheel with tyre diameter of 17mm and width minimum of 6mm
Rear tyres – Any rubber or polyurethane tyre compound can be used with minimum wheel and tyre diameter of 19mm and maximum width of 10mm
D5) Axles
Free choice but must not protrude outside wheel hub.
D6) Slot Guide
Maximum guide blade depth 6mm and 1.55 mm thick
Any car may have an easy fit guide replaced with a conventional wired guide with the necessary minimum modifications to the chassis.
Motor wires and braids are free choice.
D7) Lights etc
Any car fitted with lights may have the light bulbs, LED’s, wiring, PC board and other fittings removed.
D8) Ballast
Ballast weight may be added to any car as desired, provided that it is placed within the confines of the body and chassis and is firmly glued in place.
D9) Body
All body shells must be made of hard plastic, glass fibre, resin or 3D printed. Vacuum formed lightweight shells are not permitted.
Windscreen and window mouldings must be provided but can be made of clear vacuum formed plastic. Rear view mirrors may be omitted but all other details parts must remain as fitted, wheel inserts must be fitted.
Vaccuum formed or lexan interiors are permitted but must be realistic and be a 3d representation of driver and interior. Wheel inserts must be fitted.
D10) Chassis
The chassis can be as that which was supplied as a RTR model, alternatively the use of 3d printed, universal chassis or brass constructed is permitted.
D11) Ground clearance and dimensional requirements
Minimum motor to track clearance 1.5mm. All four tyres must touch the track surface when placed on the track and all four wheels must rotate.
Maximum overall outside tyre wall width 64mm
And I have attached the car list,
So plenty to think about..........ummm what shall I choose

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