[VFR750]

After a lot of thought...

First Step:
1) Wide-A calipers
2) 84-89 Carrera 24mm rotors
3) Pagid RSH-29 Pads
4) Keep brake cooling scoop and plumbing
5) delete the hub blocker plate (better hub cooling)

$200 for the used calipers, $148 for new rotors.

After this, if I still see fade, sponginess, venting brake fluid, and weeping bearing caps at Thompson Motor Speedway, then I will upgrade more.

In mid-July, when it hits +95F humidity, and after the second run, I'll know if this was enough.

I still think the StopTech Level 1 Front is a good option. The upgrade directly adds significant rotor cooling with a 28mm wide floating rotor, with much more efficient spiral cooling vanes. Plus it is a drop in, with no other mods.

Since shedding rotor heat is the solution, both Rebel Racing and StopTech offer 28mm wide floating rotors in the front. Both should be able to dump a lot of heat, with the Rebel rotor at 318mm vs 282mm being better.

The conversion to the Boxster S/996 caliper adds a lot of extra work; 930 master cylinder and 14mm front wheel spacers. (new studs) but also gains 24mm rear rotors.

The front 996 caliper spaced for the 318 rotor fits, but just barely on a 16x6 ET36 Fuchs with the 14mm spacer, and similarly just fits a 16x7 ET23.3 Phone Dial without a spacer.