Race Classes

A Range of Classes

You are allowed to install a larger or different engine from the same manufacturer as the body shell, with freedoms permitted with head design, internal specification and capacity. The same style of fittment must remain, though. Popular conversions include late model twin cam 4 cylinder engines into early model 4 cylinder cars, and 13B rotaries into early model mazdas. Turbo's are also often fitted to these engines.

Improved Production Racing offers a wide range of capacity based classes to compete in. Each offering a diverse range of makes, models and engines.

CLASSIC

0 – 1600 cc

1600 – 2000 cc

2000 – 3000 cc

3000 – 6000 cc

Over 6000 cc

IMOROVED PRODUCTION

0 – 1600 cc

1600 – 2000 cc

2000 – 3000 cc

3000 – 6000 cc

Over 6000 cc