MaxLTV

There are many 992 Turbos with PCCBs, and no complaints of dust or judder, even when driving at the track. Do Turbos get different pads or did the pad material change very recently (22 models only)?

CAlexio

This is what we are trying to figure out... if there is a compound change or just if sgroer just has the devil's snow coming out of his brake pads.

Archimedes

Probably a bit of both, exacerbated by very hard driving over a relatively long period (600 miles). Even the prior PCCBs produced some small amount of dust over hundreds of miles - at least my wheels accumulate something on them.

Could be most drivers won’t see that much dust. The judder is a much bigger issue

SToronto

Yes the duplication rule can bite you.

The noise yes, I believe Porsche but out a video describing it because it was a common complaint by people unfamiliar. The dust part, I can attest with my 2020 Spyder, there was no noticeable dust, even after a track day.

Seems something is different here, that the a previous PCCB buyer would not know about.

sgroer

I was able to confirm today that the new pads for PCCB are in fact a new compound and it started in the 992. This compound is due to environmental regulations as we had been suspecting. We will likely continue to see dust and juddering at varying levels. We can all breathe easy knowing that our cars may be getting 11mpg but the dust from the pads has a smaller environmental impact than the 991.

The big concern is that I suspect they may be discontinuing the 991 pads and replacing them with these. Have not confirmed that yet.

My 991 pads arrive soon and I am hoping they have a 991 part number. - that they aren’t the replacement pads. I have made some great contacts and connections through this process that are helping figure it out. The ultimate fallback is the Pagid RSC1 but many people aren’t crazy about running aftermarket pads on $30k rotors.

I am also looking to confirm that the 992 discs are the same compound as the 991 discs.

3-Pedals

Thank you for doing this research and sharing all the details with the community!

TRZ06

That matches with the regulations. The 992 started model year 2021 I believe right?

The New part# on the PCCB pads on the GT4 changed for model year 2021, which is also when the new law went into effect. So all the timelines match up.

So far, there have been no reported "jutter" issues reported on the PCCB equipped GT4's for 2021 or the 2022's that are on the road.

n d

Dusty after 300 miles in gorgeous Boca roads driving like an old man…….. also getting judder Almost feels like abs is kicking in on moderate pressure on the brake’s…

TRZ06

Steel or PCCB? Which model?

3-Pedals

Damn

Porsche needs to address this. Dust is one thing but the judder isnt good.

n d

sorry pccb 992 gt3…. Never noticed this issue on my 992 turbo s.

TRZ06

Interesting. The 992 GT3 must use a different pad material than the 718 GT4/Spyder PCCB's, because there has not been a single complaint on the GT4 forum for judder or excessive dust.

Bob Z.

I have a '21 Spyder with PCCBs and I have had zero judder, no noise and basically no brake dust, but I do get street dust as I call it, or at least I think that is what it is. I have Black wheels and had the same on my last P-car, a '19 Targa GTS with PCCBs with Black wheels so I would bet that the pads are the same on them.
''

Mech33

Easy to check if anyone has these pads handy. The copper environmental compliance markings are on the back of the pad showing either A, B, or N. A is the good stuff. B is the < 5% Cu (2021 regulation), and N is the < 0.5% (2025 regulation).

991.2 GT3 iron pads were marked A. The 992 GT3 iron pads posted in the other thread showed Porsche jumped all the way to N, so it’s not surprising there was a big performance difference there.

I’m curious what the 991.2 GT3 PCCB and 992 GT3 PCCB pad markings are and if it was a similar jump from A to N.

sgroer

I can tell you that Porsche is well aware of this thread. At this point, I would have never ordered these brakes if I knew what I was getting.