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PCCB Warning

The new GT3 brochure refers to PCCB as being lightweight, powerful, robust. (the first two are true, the jury is still out on the third) and goes on to add that they offer shorter braking distances in even the toughest road and race conditions (no mention of longevity). Let's hope this doesn't turn into another saga like RMS.
 
The original literature...." designed to last 100,000miles under extreme conditions on teh road and track...." hmmm
 
Here is teh damage to the offside disk (outer face)..forums/rennlist.com have more pictures...theres a suggestion taht the initial damage may be caused not just by overheating but by ABS "hammering" the suface ogf teh disc causing failure??? anyone heard anything about this?


E41906A8ED5F4E50872FFD13BE29FF39.jpg
 
I guess that's a no Paul. I would be surprised if the ABS is adding to the problem. Another local club member trashed his low mileage 996 Turbo X51 PCCB's at an airfield high speed event. They are not quite so bad as your photo example. Porsche do not want to know, blamed his driving technique.[:mad:] And all he expected was to be able to stop the car from 170mph twice!
 
Porsche are being dreadful on this....I assume secondhand values will be greater without PCCB and people will stop specifying them new...Porsche will lose their unique selling point of engineering integrity...they should just admit the PCCBs are not up to the purpose for which they are designed....an dreplace them with steels.
 
Most of the 997s sumitted for Road Tests (esp 997TTs and 997GT3s) have PCCBs fitted, and the various journalists don't seem to make any adverse references to durability.

However, the latest 997GT3 and GT3RS brochure, and the internal technical bulletin, suggests that the latest specification PCCBs are significantly improved over earlier applications.

They say that the system is under continuous development, citing, improved cooling, new vent geometry, greater structural stability, new drill hole pattern, lighter six piston callipers at the front and four at the rear, larger dimension front discs, improved construction methods, modified front to rear brake bias, etc.

In other words, enough to suggest that the latest specification has been optimised, but perhaps indicating that there were short comings with the earlier specifications.

But, if some owners believe that they have been victim of a manufacturing/design defect, and they are not satisfied with Porsche's response, then the only way forward would be to get an expert opinion on the failure, take professional advice, and perhaps commence a group action against Porsche.
 
Thre road test cars are refurbished by porsche every time they go out...it would be very interesting to find out how often Porsche change the PCCB discs/pads on these cars!!! Any subversive Porsce mechanic want to let us in on the secret?
 
Can porsche offer any particular techniques for improving the performance? Presuambly the develpment drivers didn't find a problem but then they would have done lots of miles in a short time, could issues be age related, damp related? Maybe test drivers get them hot every time while normal road use will not generate enough heat to dry them out?
Tony
 
Porsche must have had this problem on there development cars I'm sure.....any one got any inside info?
 
Anyone know about the experiances of ceramic brakes on other cars like Ferrari's and BMW M3CS's? Do these suffer from similar problems?
 
Hi Paul. Sorry to hear about your unbelievable news! Go back to steel? Yeah, you could try that - you could also try getting a different car. Honestly, the more I read this forum, the more I am amazed at what happens to these "bullet proof" cars which - lets face it - cost us anything between £35K and £100k to buy - if you're (lucky?) enough to buy a new one! My 996 is just over 3 years old and has done just over 17k miles; the rear discs are knackered - pitted with rust and generally crap. "Oh, they all do that, sir - it's a character of the steel". "I don't think you're drying the brakes properly after you've washed the car, sir". Please, help me now! The reason that the discs are knackered is because Porsche now produce cars which are both stacked high AND sold high with low-grade steel and high grade prices - a truly unique combination! People say to me - "Well, at least you've chosen the best and most reliable of the super cars!" My God! I dread to think what Ferrari and Lambo owners have to endure!!? Flogging on handover from the dealership, maybe? Don't get me wrong; I love my car, I just cannot believe some of the things that routinely go wrong with these things - and even more so, cannot believe some of the self-reassuring excuses that their owners come up with when they do. Ten large for new brake discs!? Paul, take your car to your OPC, give the keys to the ridiculously pretty receptionist and tell them to call you when it's fixed - FOC.
Best of British!
 
Adrian,

Just looked at your profile and I'm guessing you're like me and passed the age when birthdays are a reason to be happy!!! The threat of a large bill from an OPC is not exactly the kind of Birthday present any of us want I guess...[&:]

Forget the car, have a few drinks and chill for the rest of the day mate![8D]
 
Cheers Watty! No matter what the day - justice WILL prevail!!! It's one thrirty on Friday and I've just got up!! - Must have been a good one?! Love the cars - just don't like the bull***t that comes with them!! Great to see that there's companies out there who (hopefully) are training people to realise that the customer is still important! - Which I'm sure you do?! I love using -, (, ), ?, and !. Eat your heart out, Lynn Truss! (!) Adrian.
 
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