24 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHWho has Composite Ceramic Brakes (PCCB'S)?
Leading reported evidence
Replace interest
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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1
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Leading evidence: 'Replace interest' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'abs controller' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace before you must' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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1
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Performed · outcome unconfirmed
Brakes where fine until i changed pads which i think they are not oem and something is very wrong after today's track day .
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Performed · outcome unconfirmed
Yes that does sound strange, and it sounds like they've replaced some of the likely culprits.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Discussions that suspect a cause
1
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Suspected cause
The only other component in this car left that might be a problem is the ABS controller.
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24 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Planet-9: 1 discussions
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1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
It got MUCH better with PSM off, but the pedal was still not
I was just wondering how many members of the club have
Caymans
or
Cayman S
' that were delivered with the factory
PCCB
's from 2006 to present. If you would like to elaborate on your experiences with them please do! Check out the Poll!
Yup, got 'em.
Would not do it again.
Big time fluid boiling at DE mid-level driving ability.
Best advice to fix that, other than switching to SRF, was
to turn OFF the PSM.
My driving style is very smooth (so my instructors say) and
the PSM is continuously, yet unobtrusively, squeezing the
brakes and overheating the pads and then the fluid. The PSM will
only allow a certain tolerance of slip angle and will do whatever
it thinks it needs to to keep you from exceeding it.
For the price -- nope, not again.
If I could find some "cheap" iron ones to use for DE's, I would
change them.
Best,
- Mark
I have about 24,000 miles on mine with no wear on them, not even any score marks! I have never had a problem with any kind of brake fade either even under prolonged hard, spirited driving. Of course, I drive that way with PSM off unless there is water on the road..
Ken,
Yes it does has SC and I always ran with it on.
The three dealers it has been to remain baffled as to why it has
this problem. It has had a new
master cylinder
and gallons of
fluid run through it.
It got MUCH better with PSM off, but the pedal was still not
solid and hard the way I think it should be at the end of the
session.
I have ridden with instructors, including one in a stock 2000
Boxster S
(Pagid Oranges and
Motul
and R compounds), and
was astonished at how fast they can brake a car. Mine simply
will not do that.
Beats me...
- Mark
Yes that does sound strange, and it sounds like they've replaced some of the likely culprits. Have you had a chance to drive another
GT3
with
PCCB
's like yours and see if it was different? I've driven the
GT3
RS with
PCCB
's and it didn't exhibit behaviour like what you described albeit I didn't flog it for an entire session because it was someone else's car. Are there other control units they can replace such as the ABC unit, etc? Maybe one of them is having some sort of issue? Hard to tell. It would be interesting to see if our
PCCB
's could be adapted to a
Cayman
though.
Ken,
No, I haven't driven another. There is a
Cayman
with PCCBs who runs a lot of DEs and is very fast, much faster than I am. He runs stock
tires
and pads and has no braking problem (he says). (He does go off a lot and crashes now and then...)
I have spoken to
GT3
guys with PCCBs and they have no problems,either.
The only other component in this car left that might be a problem is the ABS controller. I may be able to plead and whine enough at a dealer in Ft. Worth to get it changed as it might be considered a safety problem.
As I understand it, GT3s use an entirely different brake controller. It may even be adjustable for F/R bias, but I could be mistaken about that.
I have driven two
Caymans
at the track with regular iron brakes and both of them had soggy pedals, but neither guy complained about them. (This was just driving in the paddock,not at speed) Maybe I just expect too much, but as much as the magazines tout these as indefatigable brakes, that was what I expected to experience.
I still think something is wrong in this car but other than the ABS controller, there really is not anything else to replace.
Thanks for the thoughts, I do appreciate it.
All the best,
- Mark
Lads i am trying to find the oem pads for
PCCB
anywhere?
Brakes where fine until i changed pads which i think they are not oem and something is very wrong after today's track day .
Bump.
Would appreciate any updates/experience with
PCCB
's now that they've been out a couple more years since this thread was started.
Would appreciate it if posters could stick to facts or first hand experiences/observations as of late. If I take the jump for a new CR than I would consider
PCCB
's therefore the renewed interest. They've also gone down in price, at least in Canabucks, since they were first introduced.
What about wear, replacement cost/experience, noise, braking feel, durability, etc.
Now I have them!
Expensive, yes, but brilliant.
So far I have done 17,000km and I kid you not the rotors look like brand new, less than 0.1mm wear. You can barely tell they are even used!
Maybe they will last 3 or 4+ times longer than steel ???
You just dont have to worry about them on the track. No fade, nothing abnormal, well not yet so far.
Compare to standard they hardly make any mess on your rims, a major bonus there.
People told me they may be too grippy before, but not so, they are just perfect!
:banana: :cheers:
I have them. Can't really say how they compare as I've never had the standard brakes.
With that being said, I have practically no brake dust, the bite hard at auto-x, and look fantastic behind the wheels.
Oh, and it doesn't hurt that they match my yellow gauges and seat belts. :banana:
gts
, mine have 15K miles on them, some friends have more. depending on how the car is used the answer to your questions might range from simple to more complex. do you intend to track the car or not? if so, how much and how hard, and what
tires
would you run?
DE's maybe 4 times a year. Stock rubber or perhaps Pilot Cups at the stickiest. Otherwise spirited road use, mostly on the plains but occasionally in the mountains.:cheers:
Why not ask the question
PCCB
or not to
Cayman
R (prospective) owners?
In theory I would expect a higher proportion of those people to opt for them.
Would be interesting to see exactly how many however.
They're more than welcome to reply also. But for the specific reason that R's haven't even been delivered yet they won't have any experience to report.
- and that is what I am specifically looking for.
I have
PCCB
's on my Turbo and incomming
Boxster
.
During light driving they have a tendancy to buzz/squeal. A quick stab of the brakes and it goes away. They dust very little durning normal street driving -they don't even look like they
wear
. The disks are substantially larger in diameter (especially the rears) than regular steels, so they fill up even a 19" rim nicely.
You have to be careful w/wheel changes. Any heavy knock on the disk risks cracking it-sometimes not in an obvious way. Use two wheel guides for wheel service-and don't use Goober and Gomer. When buying used, inspect yourself with a magnifying glass (no joke). Bleed procedures are the the same as regular brakes, and they have have 2 bleeders on each front caliper.
With heavy track use however, all bets are off. They are a consumable like everything else, only much more expensive than steel rotors. I would be squeamish about changing the pads from stock too. The rotors are just too expensive to replace.
If you do get them, be thankfull they are not Ferrari's as they only allow two pad changes before you must replace the rotors- a $20K brake job.
Live from Boston
BD
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