[Goat Blower]

Holy old thread Batman.

Wheel type plays a large part in this. Good rims like Volks will fit upgraded brakes even under a 16" wheel. Factory wheels are thick and heavy, and won't fit big brakes as well. Also the factory calipers are very thick, upgraded aftermarket calipers would fit better under smaller rims as well.

I tried to tuck some 13" rotors under my aftermarket 16" rims with factory 93-94 calipers. They didn't fit. After much grinding and persuasion, they fit but I didn't feel good about the clearances with metal expansion under heavy braking, so I sold the rotors. You don't need much braking for drag racing anyways. :-)