2000 GT3 F/CALIPERS 996 C2 FITMENT

Hi Does anyone know if it is possible to fit 2000 GT3 front calipers on a '98 996 C2 without to much jigery pokery. Cheers Graeme

Should work as I believe the brake knuckles are the same. I could be wrong but since the aftermarket kits run the same part number should work.

unless you can make special adapters and use longer caliper bolts, you'll have to use the gt3 wheel/hub carriers as the gt3 rotors are bigger than a c2. if you don't mind aftermarket parts then i think a better bet would be to use brembo or stoptech brakes. they are reportedly lighter than the gt3 rotors (the aftermarket units have alumium hats) and don't screw up the brake bias and ABS. the car comes with a predetermined amount of braking force programmed and if you exceed it then you can trigger ABS prematurely leading to worse braking performance.

I have looked into this since the early C2 is basically the same as the Boxster S. You cannot put the TT or GT3 brakes on because the axial bolt spacing is different (140 vs 130mm or something similar). You will have to change out wheel carriers, bearings, hubs, -- a lot of stuff. Cost is almost $2K in parts if I remember. Plus, the cost of the brakes. This and the massive increase in weight put this project on hold. I talked to one tuner who put PCCB on a Boxster and took a slightly different route using TT or C4S carriers if I believe. He explained lots of custom fabrication and a few things that were a bit of a hack (half-assed). They spent $10K not including the brakes.

That is my understanding as well. The more fundamental question would be why you would want to do such a thing. Do you feel that the C2 stock brakes are inadequate in any way? If so, in which way are they inadequate? Mine seem fine for street and DE use. If you really did need to upgrade, Brembo makes plenty of bolt on upgrade packages . . .

They will not fit, wheel carriers must be canged and these will not mate wi the rest of the C2 setup. Ciao, Johannes E.

yep - everyone above is right - they will not fit W/O the GT3 or Turbo wheel carriers ($650-ish/each from Porsche, plus all the other parts -think $2K per side when your said and done). If you can get a cheap set complete it might be worth it otherwise the brembo or stoptech kits are the way to go, and have the reduction in weight. I priced the entire parts list a while ago, ended up being cheaper to go with the brembo's & buy new wheels 2 boot. I ended up not doing it for now since i am in "light" track duty mode (i have to rebuild another car in other words)

jigery pokery? I'm not sure that those of us here in the States understand this term to appreciate it. Is the american translation " ****ing around ?

Sweet I learned something! You want bigger brakes...check it out here - http://vrsm.vividracing.com/index.ph...gory=VR%20Life

Now that is funny!

There was an article in Panorama that arrived today. It said that increasing the brake size doesn't increase stopping power. That's a function of tire grip, and you already have enough brakes on the car to lock the wheels. The larger brakes add in heat dissipation. The number one thing you can do to decrease stopping distance is to lower the center of gravity, since it reduces weight transfer forward under braking loads.

YES JIGGERY POKERY IS THE PLEASANT WAY OF SAYING NOT TO MUCH ****ING AROUND

What Lee is referencing is right for the most part. The main advantage of big brakes is larger heat dissipation although there is some increase in brake torque (and front brake bias) due to larger diameter. I disagree with the Panorama statement about lowering the center of gravity. You're not likely to lower the center of gravity by much without radical modifications implying Porsche brakes are oh-so-perfect. With the 911 platform, you do have a distinct advantage that the weight is at the rear, so you can afford more weight transfer to the front than most cars. Where I disagree is the number one thing you can do is to optimize the brake bias. Stock brakes tend to have a front brake bias for safety reasons, and I have found with my 986S, there is a huge front brake bias. I have found I can easily increase braking ability by putting in higher friction pads in the rear. Note this goes against conventional wisdom which says to upgrade the front brakes only since the front brakes do all the work. I disagree with this conventional wisdom in that you will lose overall brake torque by putting in bigger front brakes unless you do something to equally (or more) upgrade the rear (like stickier pads). My 2 cents, YMMV, other disclaimers apply. StopTech has some good info and, in general, seems to have their act together: http://www.stoptech.com/whitepapers/...erformance.htm

My SRF had a thumbwheel in the cockpit. You could adjust it on the track. That was fun!