Anyone in the SF Bay Area have a big brake kit?
#16
With track tires I'd be in that ballpark. The AP Racing rotors are sized the same as the StopTechs but cost $2,500 more. For that price I could get the huge Brembos, so I'm not too sure about going that route since Schmidt (and others) seem pretty happy with the StopTechs.
#17
I went with just the girodisc rotors stock calipers. The large diameter offers more braking torque for the same pressure and better heat dissapation. The combination of these plus, pfc08, and motul fluid have resulted in solid pedal feel with no fade for me.
#18
Rennlist Member
BTW, I saw earlier you suggested your street tires were taxing your brakes more (than slicks or R comps, I guess). In reality, stickier tires are much harder on brakes because they can sustain much higher g loads under braking and will therefore create much more heat. The entry speed will be higher, but so will exit speed from the last corner. Stickier tires are much harder on brakes than street tires, not the other way around.
#19
Another consideration could be how far down you wear the pads before changing them out for a new set. Thin pads transfer more heat to the fluid. We generally recommend changing the pads when the pad material thickness equals the thickness of the metal backing plate.
#20
Bought Girodiscs and took them to the track today. Same tires, same pads, sameish lap times (slightly faster), same everything else, and experienced no fade. Problem solved.
The GT3 master cylinder is also a big improvement in pedal feel on track.
The Girodiscs are marketed as being "generally 4-8 pounds" lighter than the OE discs, but the ones for the 987.2 are 4 pounds heaver than stock in total. In this case it's worth the weight gain.
The GT3 master cylinder is also a big improvement in pedal feel on track.
The Girodiscs are marketed as being "generally 4-8 pounds" lighter than the OE discs, but the ones for the 987.2 are 4 pounds heaver than stock in total. In this case it's worth the weight gain.
Last edited by tweej; 08-12-2018 at 12:07 AM.