drivinhard said:
BTW because of the name of the thread, true track rubber IS serious stopping power. Tires stop the car, not the brakes.
Yup. And they turn it, too.
My previous comments about making the 11.6" brakes work are in the context of the previous posts about just doing it for one convention track event. The idea is that for one event you can have fun, just be careful managing the brakes, and you can do the event without shelling out $$ for a brake kit and tires and wheels to go with them.
But if you really want to _drive_ the car, explore it's limits (and yours), and wring out the turbo, then Mark is spot-on in that you'll want as much brake as you can get and tires and wheels to go with it.
I just went back and reviewed the thread and I see you've got "Cobra" (which I assume means PBR HD) calipers on 11.6" rotors. If you want to upgrade those to the 12.5" PBR kit (or equivalent), you'd need to change the knuckles, modify them, etc., etc. The Baer 12.5" kit used a different rotor offset than the other PBR-calipered kits, and modified pre-94 knuckles. You could make a bracket to use 12.5" rotors, but you'd have to find some rotors to fit or cut them down from 13" rotors (and you'd need a BIG spacer to get the slicers over them).
You can make the 11.6" rotors work on slicers, and you can have fun doing it at Grattan, but you won't be as quick as you would be with better wheels/tires and you'll have to manage the brakes more than you would with bigger rotors.
People bring some pretty nutty equipment to track days sometimes (e.g., rented Altimas) and still have fun, you just have to have your expectations in the right place and drive accordingly.