Rebrake PCCB Refurbishment - 997.2 GT3
Rebrake PCCB Refurbishment - 997.2 GT3
Author
Discussion

jms1

Original Poster:

237 posts

212 months

Thursday 3rd October 2019
quotequote all
Has anyone got any first-hand experience of Rebrake and their ceramic disc refurbishment service? I understand JZM offer PCCB refurbishment via this company too.

I was advised today that my rear disc thickness on my 997.2 GT3 is now 27.8mm (min thickness 27.7mm). I’m surprised that the rear discs have worn at this rate TBH since the car has covered 34k miles and has only been used for occasional track days. However, as documented at length, PCCBs of this vintage are far from bulletproof.

Anyhow, in the not too distant future they will require replacing and Rebrake would appear to offer a cost effective option for rejuvenating my rear discs, as and when they are finally worn to limits. Any recommendations out there for this company?


Porsche911R

21,146 posts

281 months

Thursday 3rd October 2019
quotequote all
They seem good, but had bad issues, now seem resolved.

“Delivery times – important information!!!

In the past, we have unfortunately experienced some delivery delays. The company, that owned the patent for carbon-ceramic brake discs refurbishment and produced for us, has turned out to be an unreliable partner many times. In June 2019 REBRAKE bought the technology as well as worldwide marketing rights and took over the production. After two months, we can now reassure, that the cycle time of appx. 30 workdays can and will be met”

BertBert

20,383 posts

227 months

Friday 4th October 2019
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How on earth have the disks worn out after 34k miles and few track days?

ChocolateFrog

32,188 posts

189 months

Friday 4th October 2019
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I remember these being marketed as lasting the lifetime of the car, obviously not.

Porsche911R

21,146 posts

281 months

Friday 4th October 2019
quotequote all
If you drive on track with the old PCCb's and PSM on, the systems brakes the rears to help a over driven car, hence you see many cars with worn rears over fronts, this causes heat and more wear which then needs 2 cool down laps.

the cars been over driven and the system has had to brake the rear of the car to keep it on the road, it's that simple.

its was a basic design in the 997 and now they call it PTV and is just as bad and should not be on GT type cars imo.

LaSource

2,636 posts

224 months

Friday 4th October 2019
quotequote all
I think solutions include to turn off all support systems when on track....and ideally uprate the diff to a 996 type diff.
Also as the std diff weakens with use the car will lean more and more on rear brakes when the systems are on.

Kawasicki

13,771 posts

251 months

Friday 4th October 2019
quotequote all
I tuned ABS, ESP and traction control on some very heavy cars equipped with PCCB.

I remember being shocked at how slowly they wore. I was sometimes going through a set of pads a day, the center caps of the wheels melted. But I never needed to change the discs.

Cool story, bro!

BertBert

20,383 posts

227 months

Friday 4th October 2019
quotequote all
Interesting, does the 997.1 GT3 have the same system? I've old got a sport button.
Bert

jms1

Original Poster:

237 posts

212 months

Friday 4th October 2019
quotequote all
Porsche911R said:
If you drive on track with the old PCCb's and PSM on, the systems brakes the rears to help a over driven car, hence you see many cars with worn rears over fronts, this causes heat and more wear which then needs 2 cool down laps.

the cars been over driven and the system has had to brake the rear of the car to keep it on the road, it's that simple.

its was a basic design in the 997 and now they call it PTV and is just as bad and should not be on GT type cars imo.
A sweeping assumption in this instance but I can’t agree that over-diving my car has resulted in any premature wear. Notwithstanding that the car has been subject to very few track days, the conditions have always been ideal and I have driven either with SC off or both TC + SC off. If I’m relying on the aids as a safety net in the dry, there’s an accident coming! The limits of the car in the dry are so very high, I can trust myself to drive comfortably within them.

Note both front and rear pads lasted for 30k+ miles before requiring replacement and neither triggered the wear indicators. I was therefore very surprised to hear the OPC Service advisor tell me that my rear discs needed replacing! I queried this with the main Porsche tech, who also said there’s a lot of confusion over PCCBs, particularly regarding visual wear indicators etc. In the end he said there was nothing to be concerned about.

When I checked I was told that the rear disc thickness measurement last year was 27.8mm too. Since then I have done 4K miles, including a very spirited 2500 Mile euro road trip to Spain (where the car got a good workout and my wife complained about the smell it was making on the tortuous downhill runs) and a Donington Park trackday.

So apparently zero wear since last year’s MOT according to measurements taken during this last ‘health check’ as part of it’s annual MOT. I question the measurements taken as well as the ultimate longevity of the PCCBs, which I why I was asking around to see if anyone has actually had their discs refurbed by Rebrake (previously SICOM). It appears not so far.

One thing is for certain, I don’t intend on buying 2 x replacement rear PCCBs rotors anytime soon smile




LaSource

2,636 posts

224 months

Friday 4th October 2019
quotequote all
Rear brakes do take a pounding on the 997s (and later ones I guess).

I had a pair of rear PCCBs refurbed by Sicom (rebrake’s previous incarnation) a few years ago on a 3.8rs. As said the actual product was perfect. Dealing with them was less than perfect.

And just to highlight that rear wear is normal, I also bought a 4.0rs that had heat discoloured rear callipers from all the work they were doing on track. These ended up being replaced with new ones.

jms1

Original Poster:

237 posts

212 months

Friday 4th October 2019
quotequote all
Thanks for the feedback.

Porsche911R

21,146 posts

281 months

Friday 4th October 2019
quotequote all
jms1 said:
A sweeping assumption in this instance but I can’t agree that over-diving my car has resulted in any premature wear. Notwithstanding that the car has been subject to very few track days, the conditions have always been ideal and I have driven either with SC off or both TC + SC off. If I’m relying on the aids as a safety net in the dry, there’s an accident coming! The limits of the car in the dry are so very high, I can trust myself to drive comfortably within them.

Note both front and rear pads lasted for 30k+ miles before requiring replacement and neither triggered the wear indicators. I was therefore very surprised to hear the OPC Service advisor tell me that my rear discs needed replacing! I queried this with the main Porsche tech, who also said there’s a lot of confusion over PCCBs, particularly regarding visual wear indicators etc. In the end he said there was nothing to be concerned about.

When I checked I was told that the rear disc thickness measurement last year was 27.8mm too. Since then I have done 4K miles, including a very spirited 2500 Mile euro road trip to Spain (where the car got a good workout and my wife complained about the smell it was making on the tortuous downhill runs) and a Donington Park trackday.

So apparently zero wear since last year’s MOT according to measurements taken during this last ‘health check’ as part of it’s annual MOT. I question the measurements taken as well as the ultimate longevity of the PCCBs, which I why I was asking around to see if anyone has actually had their discs refurbed by Rebrake (previously SICOM). It appears not so far.

One thing is for certain, I don’t intend on buying 2 x replacement rear PCCBs rotors anytime soon smile
Ok the system thinks you were over driving so applies the rear brakes. :-) either way for road driving the rears don't wear much.

Cunno

511 posts

173 months

Friday 4th October 2019
quotequote all
Porsche911R said:
jms1 said:
A sweeping assumption in this instance but I can’t agree that over-diving my car has resulted in any premature wear. Notwithstanding that the car has been subject to very few track days, the conditions have always been ideal and I have driven either with SC off or both TC + SC off. If I’m relying on the aids as a safety net in the dry, there’s an accident coming! The limits of the car in the dry are so very high, I can trust myself to drive comfortably within them.

Note both front and rear pads lasted for 30k+ miles before requiring replacement and neither triggered the wear indicators. I was therefore very surprised to hear the OPC Service advisor tell me that my rear discs needed replacing! I queried this with the main Porsche tech, who also said there’s a lot of confusion over PCCBs, particularly regarding visual wear indicators etc. In the end he said there was nothing to be concerned about.

When I checked I was told that the rear disc thickness measurement last year was 27.8mm too. Since then I have done 4K miles, including a very spirited 2500 Mile euro road trip to Spain (where the car got a good workout and my wife complained about the smell it was making on the tortuous downhill runs) and a Donington Park trackday.

So apparently zero wear since last year’s MOT according to measurements taken during this last ‘health check’ as part of it’s annual MOT. I question the measurements taken as well as the ultimate longevity of the PCCBs, which I why I was asking around to see if anyone has actually had their discs refurbed by Rebrake (previously SICOM). It appears not so far.

One thing is for certain, I don’t intend on buying 2 x replacement rear PCCBs rotors anytime soon smile
Ok the system thinks you were over driving so applies the rear brakes. :-) either way for road driving the rears don't wear much.
The 997 diff is the weak link and the electronic aids are programmed to assist it’s short comings whether turned off or not (according to rennlist threads I’ve read). So first thing, is your diff working, at the mileage you quote above I doubt it, get it checked out if not already done so.
If it is worn out upgrade to either motorsport diff plates or a guard transmission diff. I personally also change ramp angles to 40/60 (same as 996) this really does help with the rear brake compensation issue the 997s have. I now get double the life out of rear brake pads now I have 40/60 ramp angles. Out of interest how worn are the front discs?






jms1

Original Poster:

237 posts

212 months

Saturday 5th October 2019
quotequote all
Cunno,

Thanks for the advice on the diff. As you say a known weak point so worth looking into as it can affect the rear brake life, as well as stability etc.

Re the front discs they were measured at 34.1mm (min thickness 33.7mm).


ChrisW.

7,642 posts

271 months

Saturday 5th October 2019
quotequote all
Thanks John (Cunno)

Good information.

I had a set of PCCB's refurbished by SICOM.

For me they were good ... of course ST's in Porsche fit are a completely different proposition ...

WindyM

441 posts

156 months

Saturday 5th October 2019
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BertBert said:
Interesting, does the 997.1 GT3 have the same system? I've old got a sport button.
Bert
I believe so. I normally drive on track with TC off but last week I was at a drenched Goodwood and with a passenger on board, left it on. Between Fordwater and No Name I could feel the rear brakes grabbing. (I will also get my diff checked (30k miles)).

Essential

1,078 posts

226 months

Saturday 5th October 2019
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Paid an exchange Depsoit and still can’t get them to pay it back.

LaSource

2,636 posts

224 months

Saturday 5th October 2019
quotequote all
Porsche911R said:
They seem good, but had bad issues, now seem resolved.

“Delivery times – important information!!!

In the past, we have unfortunately experienced some delivery delays. The company, that owned the patent for carbon-ceramic brake discs refurbishment and produced for us, has turned out to be an unreliable partner many times. In June 2019 REBRAKE bought the technology as well as worldwide marketing rights and took over the production. After two months, we can now reassure, that the cycle time of appx. 30 workdays can and will be met”
Essential said:
Paid an exchange Depsoit and still can’t get them to pay it back.
In that case sounds like the new partner has not solved the issue. It would seem to me that the inefficiency (eg of returning deposits) is not an issue of supplying partner but more general admin in the owning company (which is still the same)

Porsche911R

21,146 posts

281 months

Sunday 6th October 2019
quotequote all
Exchange is a bad idea imo anyway esp if you only have worn disks and want to do preventative work over some of the really nackered chipped disks you see.

I would want my own disks back, and they now state 30days.
Will get mine done over winter and then also no money up front then to try and claim back.

SFO

5,170 posts

199 months

Sunday 6th October 2019
quotequote all
I thought PCCB discs are weighed to measure wear rather thickness?