here are the rim sizes
front 18x8 35 offset
rear 18x9 38 off set

I wanted to run at least a 225 in the front and in the rear get a 255. will these sizes work.
I am also going to order some GC coil overs and wondering what spring rate you guys would suggest.. I never really take my car to the track but I drive pretty hard. I'm always taking weekend trips to the beach or mountains and there are some great twistys so I really want it to handle. I'm also not to worried about ride quality, in my mind the stiffer the better.

 

The rims *should* fit. But dont quote me on that

Anyways, how unbearable of a car do you want? You could go to 400# springs which would give you a really rough ride and probably bruise your ***, or you could go to like ST springs (120 all around), or RB which are like 120f/90r.

 

I cant help to much on the back, but there is boatloads of room there.

As for the front. I run +35 offset with a 16x7.5 wheel and 225 yoko's .. They fit.. BARELY with eibachs and tokico's - Coilovers should give you more room though.