Mini Modified Tractors

Mini Modified Tractors are those using engine(s) up to a maximum capacity of 351 cubic inch. The engine must employ a flat tappet camshaft and be naturally Aspirated, no blowers or turbo-charging. The engine(s) may be up to 60 thou rebored. All engines are limited to two valves, one spark plug per cylinder. Transmissions and Differentials must be derived from passenger cars or trucks. No planetary racing transmissions, slider clutches, quick change differentials are permitted. Weight classes are:

1. 770 kg

2. 825 kg

3. 900 kg, including driver and safety apparel

No portion of a mini modified tractor may exceed 8 feet forward of the rear wheel, including removable ballast. No portion of the tractor shall exceed 6 feet in width. Legal fuels are restricted to pump fuels. (Unleaded Petrol (ULP), Premium ULP and Aviation Fuel (AV Gas) is allowed and no additives may be added thereafter)