good point about the sidewall. i'm running that size since it matches the stock diameter.
and yeah, the car is NA, so i guess you could say not much power, heh. track usage is mainly autocross. funny thing is at the autocross events i have been to, i haven't seen a turbo rx-7 get a faster time than a non-turbo one yet.

i was originally planning on getting the GC kit + Koni shocks...but, after you factor in camber plates, it is the same cost basically as a good entry level coilover set. and even though there might not be much actual performance difference, i would rather get the coilover set.
so now i'm looking at something like the Stance coilovers...