Brembo DIY BBK upgrade pics
#16
03-08-2012, 08:36 PM
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I hope the OP doesn't mind if I chime in on here as we get this question a lot from Porsche owners. Yes they look great, and they provide less fade but there's also a few other important reasons.
This is not the most important reason but definitely one to consider is the price. The GT kits initial investment is slightly cheaper than the PCCB's while performance is about equal, but also maintenance is way cheaper. The replacement GT discs are a lot cheaper from your local Brembo dealer than the PCCB discs through your Porshe dealership.
From a performance stand point, they far exceed the factory non PCCB brake system. There's lots of weight to be saved between the factory one piece cast brake discs vs. the Brembo 2 piece GT discs. I don't have the exact numbers but we recently compared a set of Audi 332mm cast discs vs 380mm Brembo GT Discs and there was about a 6lb difference just in the brake discs. The Panamera discs are 2 inches smaller than the Brembo GT's so you can probably expect similar weight differences which means faster acceleration times, better cornering of course better braking.
This is not the most important reason but definitely one to consider is the price. The GT kits initial investment is slightly cheaper than the PCCB's while performance is about equal, but also maintenance is way cheaper. The replacement GT discs are a lot cheaper from your local Brembo dealer than the PCCB discs through your Porshe dealership.
From a performance stand point, they far exceed the factory non PCCB brake system. There's lots of weight to be saved between the factory one piece cast brake discs vs. the Brembo 2 piece GT discs. I don't have the exact numbers but we recently compared a set of Audi 332mm cast discs vs 380mm Brembo GT Discs and there was about a 6lb difference just in the brake discs. The Panamera discs are 2 inches smaller than the Brembo GT's so you can probably expect similar weight differences which means faster acceleration times, better cornering of course better braking.
While I agree with your comments, replacing the stock Porsche Brembo 6 piston monobloc calipers with Brembo GT calipers will not have a significant effect. Using similar multipiece rotors that are larger accounts for the difference. Adding larger brakes simply builds additional heat into the vicinity of the brake components as well as the brake hubs and bearing assemblies. Adding cooling ducts which direct flow to the center of the rotor and through the vanes will help stabilize rotor temperatures and lowers the amount of heat transferred to the pads, calipers, and fluid. Just upgrading the rotors and using mounting brackets that allow retention of the stock calipers is a much more cost effective solution since the stock calipers are excellent, and very good looking too. Brake cooling upgrades are a vital component of the whole braking upgrade, albeit a non-sexy upgrade.
More effective cooling ducts, proper pad selection, and Castrol SRF, which has the highest wet boiling point of all fluids, along with larger lighter multi-piece rotors will provide the best heat dissipation and prove most effective against brake fade when tracking a heavy car like the Panamera, or if longer track sessions are desired.
If the goal is resisting brake fade, you need the whole solution. If money is no object, then the GT kit is the way to go. But then don't stop there and say you're doing it to reduce fade. The duct upgrade is very cheap comparatively speaking, and the stock ducts are weak.
Last edited by Dr Chill; 03-08-2012 at 08:52 PM.
#17
03-09-2012, 07:59 AM
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We are now talking about two different subjects now, for those who are looking to fill in the area behind the wheel while improving braking acceleration and handling then the GT's are the way to go and there really isn't a cheaper alternative that gives you equal performance. Brembo does offer 2 piece discs to be used with your factory calipers for certain applications like the 996 and 997 911 models for a cheaper alternative to upgrading the entire system. However all this really just depends on the track your going to. Some tracks are easier on the brakes than others so it really just depends on how hot your brake temps are.
The GT's can be used for the track but if your looking for a multiple track days type set up that you can drive on the street I would suggest Brembo's GT-R kits. Their calipers and discs are a hybrid set up with the comfort of the GT's on the street and the performance of their race calipers.
The GT's can be used for the track but if your looking for a multiple track days type set up that you can drive on the street I would suggest Brembo's GT-R kits. Their calipers and discs are a hybrid set up with the comfort of the GT's on the street and the performance of their race calipers.
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