I am trying to decide what to do for brakes this time around seeing how my stock rotor / Pagid yellow set up is tending to be way under powered.


I am kicking around the idea of going to Brembo's 380mm kit both front and rear.


Has anyone here ran that set up before, if so how did it work and how was the brake Bias. Plus how hard did you run it, hard or coffee shop street cred?
I am not sure I want to give up my E brake too!

 

There is a GT2 competition kit for the 996TT. It's the yellow calipers but steel rotors. Works fantastically.

 

Yes there is but the price is about the same so you might as well go right to the brembo kit.

 

The Brembo kit you can get in any color and your e-brake will still work. I have had them in 15 and 14". Depends on your wheels but I can say both worked great (same calipers). They have some great new pad selections as well as of last year.

Feel free to call me if I can help.

 

I run the factory Porsche 997GT3 PCCB Brembo 380mm front / 350mm rear calipers combined with 380mm 72 vane front and 350mm 48 vane rear Girodisc floating rotors, PFC 08/08 pads, 997GT3 brake master cylinder, a 997GT2 vacuum pump, Endless RF650 fluid, and Cup car brake ducts front and rear. This is a set up I've been running on my car which is 95% track, 5% street. The car is driven and driven hard. You will be hard pressed to find a better set up for these cars, period. It is bullet proof even when run hard at the track for 30min+ at high elevations and 100F+ temperatures. The whole kit will run about $9-10K (and you get you keep your E brake). The key is to upgrade all the components at described above and not just the caliper and rotors. You will end up with a brake system that feels identical to the big brake 997GT3 RS cars. If you've ever tracked one of those cars, you will know how fantastic those brakes feel.

I would not bother with any aftermarket Brembo package unless you are considering the Brembo GTR 380/380 kit which runs about $17,000 for calipers and rotors. This is the competition kit that has the silver nickel plated calipers and not the yellow/red/black street versions that come on the street Brembo GT kit. The disadvantage of the Brembo aftermarket stuff are the narrow annulus rotors and the fact that you have a fairly limited pad selection due to the specific pad shapes required but I think that has improved in the last couple of years. I've driven a car with the street GT kit (380/345 I think) and felt that the car was very front brake biased. I didn't care for it.

 

Unless you are using as a track car I feel the 997 pccb's are the end all be all. I have them on my car. All the factory based brakes have a much larger sweep area the the aftermarket bbk's.

 

im curious to see how a 380 rear would affect bias. i think our cars can definitely have a bigger bite in the rear to keep her better planted.

 

Brake bias is not only a function of the rotor diameter but also the size of the caller pistons. The 996 cars had notoriously small rear caliper which gave the cars a lot of front bias and as a result it was common practice to use a more aggressive rear pad. This was rectified in the 997 cars with the larger rear calipers which had almost 50% greater piston area. Additionally, on the 380/350 brakes, Porsche further reduced the front caliper piston sizes on the 997GT2/3 compared to the same brake on the 997TT. This further shifted the bias to the rear thus making it easier to rotate the car under braking. A byproduct to this is a harder brake pedal on the GT cars. I have run both the 997TT PCCB and 997GT3 PCCB caliper on my car and I find the GT versions better than the TT versions. Porsche got it right with the 380/350s on the 997GT3s...