The purpose of the 944 Cup is to create an affordable race series for the front engine Porsche that provides for some flexibility and individuality by allowing limited modifications to improve the performance of the cars while maintaining a level playing field by adjusting minimum car weights and maximum power limits.
There are two 944 Cup classes: (1) Cup Class, and (2) Super Cup Class. The Cup Class is designed for normally aspirated eight (8) valve front engine Porsches, with the exception of the turbo powered 2.0L model (931). The Super Cup Class is designed primarily for higher horsepower cars such as the sixteen (16) valve normally aspirated and turbo equipped front engine Porsches.
For each Class, there are two basic categories of car preparation including “PCA” cars and “SCCA” cars. Allowed modifications for each category of car and corresponding minimum weights are described in detail below. Within each category of car preparation, there are different levels of modifications allowed, along with corresponding minimum weights and horsepower limits.
The full set of rules is available as a pdf via this link.
The Series offers a Microsoft Excel based compliance calculator via this link.
The mandatory compliance form that must be completed by drivers is available via this link.