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General rules for 1/32 - 2007
1. All body shells must be of hard plastic, glass fibre, resin or similar, no Vac-formed bodies are permitted. Cars must be finished in a style sympathetic to the period being raced and carry at least two racing numbers.
2. No sponge or silicon tyres. Tyre width limits in all classes are overall. All wheels must have representative inserts fitted.
3. Wheelbase + / - 2mm of scale prototype
4. Motors must have been available in their basic type before the end of 1966
Generic 1966 and earlier motors may be modified in respect of rewinding, mixing parts between eligible motors, modern replacement parts where originals are unavailable, limited to endbell, brush gear, bearings, armature, commutator, fixings and fasteners. Proslot/ Mura/ RJR/ modern 16d and C can etc. ceramic magnets are not allowed
Current Chinese 16d motors are permitted as are other modern motors up to 16d size + current unmodified Falcon/ TSRF/ Standard and aftermarket Mabuchi S and SCX motors. MRRC/ Johnson 111/222 base motors are accepted as versions of generic 13UO/16d types
5. Guide not to protrude beyond the front-most point of the car when in straight ahead position
6. Any standard commercially available model of a prototype will be eligible for the class but will be subject to rules 1 and 3
7. A ground clearance of 1.5mm is required in all classes.
8. No flexiboard or similar modern chassis are allowed
9. All overall widths stated are the maximum. Any prototype with a scale width wider than the default figure has to be proven by the entrant.
Ready to Run Cars (RTR)
1. Any RTR car made by Scalextric, Ninco, Fly, etc that fits the class being raced may be used. Motor orientation does not have to comply with the class rule. As can any kit built car such as an MRRC Clubman. Provided that they comply with General Rules above.
2. To be accepted as a RTR, cars must be assembled with all the standard components as supplied by the manufacturer. Any part may be glued in place. The standard tyres must be used.
3. Traction magnets must be removed.
4. Ballast may be added, but must not be visible when the car is viewed from side-on or above, and may not be used to stiffen the chassis.
5. Body shells may be repainted and detailed but not altered in any way.
6. Body mounting screws may be loosened but must be prevented from falling out.
7. If any of the following are changed or modified in any way, except as permitted above, the car will be moved to the
Scratch Built and Modified Class.
Motor, Gears, Wheels, Tyres, Guide, Chassis and Body Shell.
Some models in this category are over scale to varying degrees. Any car that is over scale but is of generally similar size to cars in the same class will be accepted. As a guideline, Ninco Classics are ok but Vanquish MG Can-Am cars are not.
Car Classes
GP and Indy cars
In all classes tyres must be visible from above the car.
Any GP or Indy car which has side tanks/fairings between the wheels must have these mounted as part of the body and must not have any part of the chassis or any ballast under or in these tanks/fairings.
Class 1 1935-1960 GP and Indy
Inline motor orientation only
Front Wheels and Tyres Min. Dia. 19mm Min.Width 4mm
Rear Wheels and Tyres Min. Dia. 21mm Max Width 7.5mm
Overall width 53mm
Class 1a Pre-34 (class 1 and 1a may be run together)
Inline motor orientation only
Front Wheels and tyres Min. Dia. 21mm Min width 4mm
Rear Wheels and tyres Min Dia. 23mm Max. width 5mm
Overall width Scale as per prototype, maximum length 150mm
Class 2 1961-1965 Formula 1 and Indy
Inline motor orientation only
Front Wheels and Tyres Min. Dia. 19mm Min width 4mm
Rear Wheels and Tyres Min. Dia. 21mm Max. width 9mm
Overall width 54mm
Class 3 1966-1970 Formula 1 and Indy
Inline motor orientation only
Front Wheels and Tyres Min.Dia. 17mm Min width 4mm
Rear Wheels and Tyres Min Dia. 19mm Max. width 12mm
Overall width 60mm
Class 3a 1971-1975 Formula 1 and Indy (class 3 and 3a may be run together)
As above but Rear width 14mm
Overall width 68mm
RTR`s width as supplied by the manufacturer
Sports, GT and Saloon
In all classes tyres must not be visible from above the car
Class 4 1950-1964 Sports (race organisers may select specific year ranges from within this time scale)
Open Sports and closed 2 seat G.T. cars
Inline motor orientation only
Only two hinged chassis parts including a drop arm if used.
Front Wheels and Tyres Min. Dia. 19mm Min width 4mm
Rear Wheels and Tyres Min. Dia. 21mm Max. width 9mm
Overall width 58mm, maximum length 150mm
Class 4a 1965-1974 Sports (race organisers may select specific year ranges from within this time scale)
Open Sports and closed 2 seat G.T. cars
Motors can oriented in any way
One Hinge only. A two piece rattler type chassis (Eurotoy) counts as one hinge. Any Chassis with extra hinges must be immobilized
Front Wheels and Tyres Min. Dia. 16mm Min width 4mm
Rear Wheels and Tyres Min. Dia. 19mm Max. width 12mm
Overall width 64mm
Class 5 1950-1972 Saloon (race organisers may select specific year ranges from within this time scale)
Four seat closed Saloon and closed 2+2 G.T. cars
Inline motor orientation only
Hinged body mounts are allowed
Front Wheels and Tyres Min. Dia. 16mm Min.width 4mm
Rear Wheels and Tyres Min. Dia. 19mm Max. width 12mm
Overall width 64mm
Wheelarch extensions are allowed to bring the overall width to 64mm.
Class 5a 1950-1972 Saloon (race organisers may select specific year ranges from within this time scale)
As above but under 2 litre cars only
Overall width 54mm
Wheelarch extensions are allowed to bring the overall width to 54mm.
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