Gofishracing

That's what i'm running now. PFC 08's. Do you lean on ABS system or drive to avoid activation.?

TRAKCAR

Try to avoid, not ramming the pedal into ABS, pretty smooth on and off the brakes I'd say.

Gofishracing

Thanks for the reply.

modoz61

Thanks for your input everyone, will probably go OEM again

powdrhound

Word of warning. Porsche recently changed the ceramic pucks in all the PCCB calipers being sold now. The old PCCB calipers had the yellow Zircon puck inserts in the pistons. The new calipers have brown ceramic inserts. Earlier this year in January, I bought a set of new 997.2 PCCB front calipers (shipped fresh from Germany) and used them on the street for a couple of months and 2 track days. Total miles on them was less than 2K. When I went to flip the front pads (PFC 08s), I noticed that one of the brown pucks was cracked. When I removed the calipers, I realized that all the ceramic pucks were deteriorating. Other than that, the calipers were mint. One puck was cracked and they were all very brittle and turning into a chalky ash like substance that you could take chunks out of with your finger nail. Really bizarre. I removed the calipers and they were returned to Porsche. Initially the warranty was denied (typical Porsche Corporate) but after a bit of haggling Porsche refunded the purchase cost. The local dealer went to bat for me on this one. In the meantime I had installed a set of lightly used 997.2 PCCB calipers with the yellow inserts and have not had any issues whatsoever with 20+ track days on them since. Moral of the story, make sure you are getting the yellow inserts and NOT the brown ones.

http://www.flickr.com/photos/87731073@N06/11524849874/http://www.flickr.com/photos/87731073@N06/11524849874/ by http://www.flickr.com/people/87731073@N06/, on Flickr

http://www.flickr.com/photos/87731073@N06/11524808345/http://www.flickr.com/photos/87731073@N06/11524808345/ by http://www.flickr.com/people/87731073@N06/, on Flickr

http://www.flickr.com/photos/87731073@N06/11524855344/http://www.flickr.com/photos/87731073@N06/11524855344/ by http://www.flickr.com/people/87731073@N06/, on Flickr

http://www.flickr.com/photos/87731073@N06/11524939773/http://www.flickr.com/photos/87731073@N06/11524939773/ by http://www.flickr.com/people/87731073@N06/, on Flickr

Spyerx

Interesting. FWIW the cup / porsche motorsport rebuild parts are the yellow ones (as of a month ago or so). Kit comes with piston, inner seal, yellow puck.

powdrhound

Yep, the PMNA rebuild kits have the yellow inserts. I was really baffled by this. That was going to be my option to rebuild the calipers with the PMNA parts but then the refund came though. The rebuild kits aren't exactly cheap, around $800 I think for the pair of fronts. Dealer couldn't make heads or tails of this either. Like I said, just a heads up to anyone that gets the brown inserts for some reason.

Spyerx

It's great they warranteed them, curious the new material they used on yours. Also it looks like those brown ones don't take the puck clips. Why you didn't rebuild your original ones? Shouldn't have been that much, though, these are specs for .1pccb/.2 steel/pccb front about $450 for parts + labor:

Prices are approx and will depend on your dealer:

Piston Sizes: 28mm, 30mm, 32mm
Outer Seals:
951.352.917.00 (28mm $12) - Qty 4 seals needed, 2 seals per pack
951.352.917.01 (30mm $10) - Qty 4 seals needed, 2 seals per pack
996.351.915.00 (32mm $18) - Qty 4 seals needed, 2 seals per pack
PMNA Rebuild kit with inner seals, piston, pucks: 997.351.959.91 - Need Qty 2 ~$175.00 each

These are rears:
Piston Sizes: 34mm
Outer Seals:
965.352.917.00 (34mm $39) - Qty 4 (2 seals per pack), 8 seals total needed
Rebuild kit with inner seals, piston, pucks 997.352.959.91 - Need Qty 2 kits - $175 each

Puck holders from motorsport:
997.352.086.91 $5 each - Need 20

powdrhound

I didn't rebuild because in I converted my car from the 350/350 brakes to the 380/350s so I had to buy new calipers. Whatever the new material is, it's garbage. Gets extremely brittle and just crumbles. I've never seen anything like it. And no, you can't use the puck retainers with the brown pucks like you can with the yellow ones. I was lucky that I found another set of calipers that was pulled off a basically new 2010 RS and bought those as they have the yellow pucks.

tgsmith4845

For my 997.1 GT3 I've got Stoptech Trophy STR Kit F&R (380mm F, 355mm R) with PFC08 Pads and I've been very happy with them. Firm consistent braking every time. I've never run Brembos so do not have an accurate comparison. The Stoptech's gray calipers and graphics have never changed color, even under some pretty intense heat.

mobonic

brembo or new PFC calipers that are on the 991 Cups.

Monoblock and bridged is best.

RacingBrake

These look very familiar. You can refer to our recent postings for the same issue on various OE/Brembo calipers, and how RS's simple and everlasting stainless steel pistons solve the issue.

https://rennlist.com/forums/11432096-post19.html

RacingBrake is your one stop store to tune your calipers for peak performance and save you cost and downtime for pad and rotor replacment due to poor function of your OE calipers.

ngng

Are people unhappy with the Stoptech Trophy kits?

surlynkid

I just put a set on TexasRS's car. He should have feedback in 2 weeks after COTA. We pulled off his PCCB's.

RacingBrake

These OE pistons will keep braking on you.





Replace with RB SS pistons for the ultimate solution.





RB SS pistons and high heat boots installed on Mitsubishi EVO Brembo calipers, forget about titanium shims and say good by to boiling fluids.