Like any older organization, the SCCA has a fairly complex body of rules. This introduction is intended to provide a sense of their organization, along with some basic concepts about how cars are classified in SCCA Racing, and what sorts of modifications are permitted. Directory Pro Racing Rules SCCA Pro Racing has a number of different race series, some running unique rules and some running rules that are closely related to Club Racing Rules. Trans-Am Trans Am cars are tube framed cars with body work that resembles a street cars. There are some engine equivalency formulas, but most cars use pushrod engines that displace roughly 310 cubic inches.
Cars are front engined, rear drive.
There is an unofficial Trans Am series web page. Click Here to see it. Pro The Spec Racer Pro series runs the same car used in the Club Racing Spec Racer Ford class. This series runs Formula Atlantic chassis similar to those classed in the Club Racing Formula Atlantic class, but restricted to Fuel Injected 4 valve Toyota Motors. In order to control costs, apparently the chassis will be restricted in the future.