In my quest to buy a track car, I'm realizing that the seats most use in their cars are the typical Sparco, Omp etc seats and they are just entirely to thickly ......adorn with padding for my tall torso to fit the car with a helmet comfortably.

I have 2 factory GT3 seats that I used in my 993 when I tracked it. I love the seats, comfort with minimal padding and a one piece fiberglass bucket in the same winged design and proper openings for harness as the above mentioned seat mfg's.

It's not an FIA "race" seat, but does follow the rule of being solid and one piece.
Would it be allowed with a seat back brace?


why can't I add a pic to this?

The NASA CCR would regulate this, and it says surprisingly little about seats. Tube frame seats are a verboten, and back braces are required for non-FIA seats. Fire proof material may be an issue on the GT3 setas, but you should be technically legal.

Well how fire "proof" are dash material or interior bits allowed to remain in general? I can't tell from either NASA or PCA what the ruling would be on the seat. Who in NASA would make the ultimate decision? The seat isn't leather, it's ..... perlon I think its called. Sort of like the material used on the inside of helmets...a foamy breathable material. If I could post a pic, I'd show the seat but the sites not letting me for some reason.

Just use it. And add a back brace.

The CCR only lists it being "recommended" that fire resistant material be used. My suggestion would be to look through the CCR, and then ask your local tech inspector - the chief tech inspector in your region has final say, as the CCR is a NASA ruleset, not controlled by 944 Spec.

Ok so the newbie question. There are numerous tech stations around the state all 2,3, and 4 hours away from me..... so how do I know who is "chief"?