Continuing the Brake Upgrade Discussion with my thoughts and info.
Starting Point: 911SC, 2,900 lbs wet, est 215 rwhp, R888R Tires, Stock SC brakes & Hawk HT-10 pads, Motul-600 brake fluid
Problem: brakes are toast after every track day. Long pedal after cool down, Spongy and need to be flushed.
Also: frequently, I see the front bearing caps leak grease onto the wheels. Must be getting pretty hot to liquefy HT grease.
Pads look toasted too: Note the heavily checked surface, crumbling edges, and paint burnt off the back sides. (This happens after the first runs) HT-10s are very high temp pads by Hawk, not many more options except DT-60/70.
I read almost all of the Brake Upgrade threads. A lot of good info. Unfortunately, 930 brakes are no longer a cost effective option. The calipers, if for sale, are just not affordable in 2018.
Used Bill Verburg's data to see what I am getting into.
Researched the Stop Tech path, and concluded Level 1 (ST-42 caliper Front Only) really doesn't get much except a much wider front rotor. You have to jump to the Level 2, front and rear to make a real difference.
I am now thinking the
Rebel Racing Boxster S/996 upgrade might just be the affordable upgrade.
The Boxster S/996 upgrade (front and rear) seems to offer a lot for about $2,400 investment: Gain 40% more pad area, 28mm wide front and 24mm wide rear rotors for heat dissipation. Need 930 master cylinder. Bias shifts forward, but can be compensated with higher friction pads in the rear.
A Hybrid configuration with Carrera rear Wide-M caliper gets the 24mm wide rotor, better bias, but you are stuck with the tiny brake pads
I color coded the parts by configuration, My SC = Yellow, etc.... And the pad area percents in yellow are the Boxster S/996 increase from stock SC area.
