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Very odd and alarming. My 991.2 Turbo has less dust even after a track day, and it's a freaking turbo, with all the weight and power and less brake cooling. Hopefully, it can be addressed with different pads. Actually, I'm pretty sure it should be fixable with different pads - ceramic rotors don't wear into dust, and there are ceramic-specific pads that do not dust, so it should be an easy fix. But still very odd. Seems like Porsche decided to give aftermarket brake vendors some financial COVID relief
Can aftermarket pads be run safely without damaging the rotors, does Porsche care. Honest question as I've never had ceramic rotors before my Spyder, which is gone. Also because PCCB rotors are bloody expensive.
From a braking perspective on track and street I've been happy with with irons on a 981 GT4 and 991.2 GT3 at CTMP/Mosport which is quite a fast track.
Yes for sure there is unsprung mass advantage but the GT3 isn't lightweight in the first place.
Maybe if tou get PCCB and magnesium wheels, then you're talking a noteworthy amount to maybe make a difference.
Yes they can be used without hurting your rotors. The RSC1 compound especially is very gentle on rotors and run cooler. But I have also run RSC2 and don't see,a difference. Not any more than when running aftermarket pads on iron rotors. They will obviously have an okinion, but that has more to do with them losing a sale than anything else.
People use,the Pagids on Ferrari, Porsche and McLarens with great success. The RSC1 compound is basically a newer and more advanced version of the classic Textar T4300 compound Pagid developed for Textar 25 years ago. The T4300 is still the most common compound today, and is used by every Ferrari, Lambo, and most Porsches. The RSC1 will only imporove thhngs, pure and simple, and so will the RSC2. Reality is that the Porsche ceramic discs are tough enough to withstand track abuse with Pagid RSL1 pads. Not advised for street, but it can be done. RSC1 and RSC2 pads will not hurt your rotors.
if you are nervous about it, the RSC1 is the pad to use. Probably the smoothest and most quiet pad for ceramics. The RSC2 can squeak a bit, but that's the nature of a more aggressive pad. That said, the RSC2 will not be howling like a Banshee, but it will chirp a bit.
Is that a GT3 or something else? If not a GT3 Different brakes and likely different pads.
992 C2S gen V PCCB. Should be the same on a GT3. 410mm 6 piston front, 390mm 4 piston rear. It’s likely different pads causing the extra brake dust since the brakes are the same.
It is the california copper pad change they had to make...and yeah, it sucks.
I don’t think that applies to PCCB’s.
Based on this article and others I have read , PCCB’s do not have metal in them. I believe that PCCB’s for both the pads and rotors use the same type of material, which mostly being carbon and resins. This is why you can’t just throw any brake pad on a PCCB equipped car.
Yes they can be used without hurting your rotors. The RSC1 compound especially is very gentle on rotors and run cooler. But I have also run RSC2 and don't see,a difference. Not any more than when running aftermarket pads on iron rotors. They will obviously have an okinion, but that has more to do with them losing a sale than anything else.
People use,the Pagids on Ferrari, Porsche and McLarens with great success. The RSC1 compound is basically a newer and more advanced version of the classic Textar T4300 compound Pagid developed for Textar 25 years ago. The T4300 is still the most common compound today, and is used by every Ferrari, Lambo, and most Porsches. The RSC1 will only imporove thhngs, pure and simple, and so will the RSC2. Reality is that the Porsche ceramic discs are tough enough to withstand track abuse with Pagid RSL1 pads. Not advised for street, but it can be done. RSC1 and RSC2 pads will not hurt your rotors.
if you are nervous about it, the RSC1 is the pad to use. Probably the smoothest and most quiet pad for ceramics. The RSC2 can squeak a bit, but that's the nature of a more aggressive pad. That said, the RSC2 will not be howling like a Banshee, but it will chirp a bit.
Thanks for the info, will look into it.
My main thing is do I want to spend $10K CDN on PCCB. I'm not sure I noticed a big enough difference in stopping ability with my Spyder on street (which is where my Touring will get used most) and on track, I only had 1 day (was maybe better than irons, but nothing that sticks out in my mind). Weight, I question whether I would notice any difference in vehicle dynamics. Then it becomes about brake dust and appearance of larger discs behind the wheel.
I got them on the Spyder just to see what they are all about.
To be fair I drove the car very hard for 600 mountain miles. But I’ve done that a lot and never seen anything like this with my 991 PCCB cars
600 mountain miles are enough to earn a dirty wheel! Chance that bedding the new brakes cause the excess dust?
Time for a bath and report back on future runs.
I have the Porsche Surface Coated Brake (PSCB) on my Taycan and after almost 20k miles the wheels and calipers look like new without ever washing my car! Wonder if those pads will change with new regs? It seems like after much fanfare the Porsche Surface Coated Brake (PSCB) have kind of dropped off Porsche radar. As for my GT3 it is always filled with brake dust from track
For all those people hoping that PCCB will lead you to the utopia of a brake dust free life, I’m sorry to say in the 992 the dust even in the PCCB is very bad. I assume the pads are the culprit. I also got some brake judder in the mountains that I never felt in the 991. Really kind of disappointed in all of this - definitely will need to find some better pads. Hoping the 991 pads fit.
10-27-2021, 10:25 PM
