General Rules
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.Unless Stated in the class rules a minimum Ground clearance of 1.5mm shall apply. Bodies shall not have the wheel arches cut or enlarged to clear the tyres. Bodies are not permitted to be 'cut and shut' or sectioned. No silicone tyres allowed at all. All cars shall have an interior with a 3 dimensional driver. no paper interiors Guide pivot will not be moved unless allowed in the class. Motor and axle ball/roller bearings are not permitted, only exception are Revoslot and 1.5l Tasman series GP car axles. Weight shall be mounted on top of the chassis within the body unless stated other wise. Race Series will usually be over 7 Races with best 6 counting. One car to be used for Series, unless other wise stated in rules. *cars not complying can run but will not be allocated points* NB Now we have tracks with magnetic braid all cars must have any magnets ( other than those Inside the motor) removed. This will be checked at the start of each series and each night at Gotham Park & Sorell Creek. Unless class rules state otherwise. Only exemption is Rally cars as the will not run on magnabraid track. |
Sebring Chassis Historic Touring Car
Championship Rules 2022
Dave Bantoft
This class is based on the Revell/Monogram Sebring chassis. The body style shall be 4/6 cylinder touring cars up to early 1970's. These shall be cars that would typically have run in the Australian Touring Car Championship or other Touring car championships. IE European,British etc.. (Note: If anyone has any doubts about what car they intend to run please request approval well before the Championship starts. A standard body Porsche 911 is deemed acceptable).
Body
Aftermarket plastic, resin 3D printed and fiberglass bodies are permitted. Resin & fibreglass bodies are to be cast at a thickness acceptable to the organiser, i.e. no lightweight see through/flexible bodies. Mass produced plastic slot bodies may be modified too more closely resemble the cars. All bodies must be painted to represent schemes of the era, may be fictitious, and must have a minimum of three (3) racing numbers. No additional appendages, other than those fitted to cars as raced, are allowable. Additional appendages may be in vac form or sheet styrene provided the material used is NO thinner than .020".
Interior
As a minimum all cars must be equipped with a minimum 0.015? styrene interior, either vacformed or scratchbuilt. All interiors shall be complete with a three dimensional driver (minimum head & shoulders). Full depth interiors ARE NOT compulsory.
Motor
As the MRRC motor is no longer available an alternative to the stock motor, if required, shall be the SRP 20,000.
Chassis
Stock Sebring chassis. Chassis is not to be extended further than the stock chassis can extend. NB the rear axle bearing should be lowered 1.5mm to INCREASE ground clearance on the MRRC chassis, offset bearings to achieve this are acceptable, replacement bronze or brass bearings are acceptable.
Tube or brass /bronze or p[lastic bearing can be used to locate the front axle
It you happen to have a later chassis with only one axle position the front axle can be moved back in the chassis,BUT it cannot be any further than 12mm behind the guide pivot.The guide pivot cannot be moved.
After modification chassis clearance shall be no less than 1.2mm.
Track
Maximum track is as supplied on the King Cobra chassis i.e. 48mm. Track may be narrowed if required.
Gearing
Gearing as there appear to be two different stock ratios.
9/27 and 10/27 both are acceptable.
Wheels
MRRC 034987 (3/32?, 13.6 * 6.8) may be fitted in lieu of stock wheels. Wheels and tyres must be covered by bodywork when viewed from above.
Tyres
Stock tyres as supplied or urethane tyres with a maximum width of 6.8mm only. Front tyres may be clear coated. Minimum tyre diameters shall be:
Front 18mm; and
Rear 19mm.
Guide Flag
Stock, guide position is not to be altered. If a replacement guide is required it must be the same dimensions as the stock guide.
Some of the later chassis kits have a slightly deeper guide that is acceptable.
Weight
Weight may be added below the stepped up sides of the chassis but must not protrude lower than the lowest part of the chassis. No weight limit applies.
Race Format
Normal seven (7) week series, one nominated car only.
