Experience with Porsche Ceramic Composite Brake option
03-03-2018, 01:18 AM
#17
Rennlist Member
Any GT car, definitely. Turbo S, maybe. Others, not so much. I didn’t order it on my GTS.
03-03-2018, 01:59 AM
#18
Also thought they weren’t quite as good in the wet when you haven’t depressed the brake for a little bit. Something about a water film developing on the surface that hampers initial braking.
03-03-2018, 04:47 PM
#19
Three Wheelin'
I have had PCCB on 2007 GT3 and 2015 Turbo S. I have had steels on 2015 GT3 , 2016 GT4, and 2018 GTS.
I prefer the feel of steel brakes. Ceramics are grippy and for me harder to modulate. And I track a fair amount. So it's a preference and a budget item for me. I like to keep the MSRP down on my builds. The TTS was a CPO.
YMMV
I prefer the feel of steel brakes. Ceramics are grippy and for me harder to modulate. And I track a fair amount. So it's a preference and a budget item for me. I like to keep the MSRP down on my builds. The TTS was a CPO.
YMMV
03-03-2018, 04:58 PM
#20
Pro
Thread Starter
To those who have mentioned that the PCCB option has a grippy braking experience, are you referring to a transition from no slowing to hard slowing that doesn't provide much ability to modulate? Or?
I really like the part about low rotational mass, no brake dust and very low rotor wear, but rotor fragility is a bit of a downside. Opportunity for damage to the rotors when replacing tires seems like an accident waiting to happen.
I really like the part about low rotational mass, no brake dust and very low rotor wear, but rotor fragility is a bit of a downside. Opportunity for damage to the rotors when replacing tires seems like an accident waiting to happen.
03-03-2018, 05:28 PM
#21
Rennlist Member
Yes that was my thought process exactly when deciding no to get them on my 17 Cab S. I wouldn’t might paying for them once,but twice? Maybe if the roads by me didn’t resemble a 3rd world country.
03-03-2018, 06:08 PM
#22
Pro
To those who have mentioned that the PCCB option has a grippy braking experience, are you referring to a transition from no slowing to hard slowing that doesn't provide much ability to modulate? Or?
I really like the part about low rotational mass, no brake dust and very low rotor wear, but rotor fragility is a bit of a downside. Opportunity for damage to the rotors when replacing tires seems like an accident waiting to happen.
I really like the part about low rotational mass, no brake dust and very low rotor wear, but rotor fragility is a bit of a downside. Opportunity for damage to the rotors when replacing tires seems like an accident waiting to happen.
03-03-2018, 06:38 PM
#23
Rennlist Member
I have never understood the gripe about PCCB being too grippy/hard to modulate/problematic for heel-toe/etc. First brake application in a PCCB car, yes, I usually put a bit too much brake in. After that, the brakes are just better in every way and I never think about it again. Just a muscle memory change, and then everything you do is the same, but better.
I can see where the track hounds might prefer "tunability" with various pads—but few if any of those pads are great on the street.
PCCB has its downsides, to be sure (mostly cost- and risk-related). But for feel and function, I truly believe the "918" PCCB system available on the 981 GT4, select 991.1 models, and all 991.2s is one of the best brake systems ever equipped on a road car—and a bargain at $7400-9000~ compared to a lot of aftermarket systems out there, particularly considering the fact it was developed by Porsche and is covered under the new-car warranty for everything other than wear or damage.
I can see where the track hounds might prefer "tunability" with various pads—but few if any of those pads are great on the street.
PCCB has its downsides, to be sure (mostly cost- and risk-related). But for feel and function, I truly believe the "918" PCCB system available on the 981 GT4, select 991.1 models, and all 991.2s is one of the best brake systems ever equipped on a road car—and a bargain at $7400-9000~ compared to a lot of aftermarket systems out there, particularly considering the fact it was developed by Porsche and is covered under the new-car warranty for everything other than wear or damage.
03-03-2018, 07:51 PM
#24
Three Wheelin'
I admit I only tracked the Turbo S that had ceramics only once. I had no problems with the ceramics on the 2007 GT3 older PCCB other than manual H/T on track.
Porsche's current brakes steel or PCCB are so good anyway in stopping power I stress in gridlock traffic due to inattentive drivers.
For the 18 GTS I wanted my MRSP to be < 140K. I also got 5 lug wheels too.
Porsche's current brakes steel or PCCB are so good anyway in stopping power I stress in gridlock traffic due to inattentive drivers.
For the 18 GTS I wanted my MRSP to be < 140K. I also got 5 lug wheels too.
03-03-2018, 07:52 PM
#25
Pro
I’m not sure I would call it a bargain 
However, I do agree with the points you raise and would look for this option on future cars I buy. I am very interested to see how the PSCB system that Porsche developed will perform over the course of the first models to get it.
However, I do agree with the points you raise and would look for this option on future cars I buy. I am very interested to see how the PSCB system that Porsche developed will perform over the course of the first models to get it.
03-04-2018, 09:49 PM
#26
I'm with you on that. I have strong feelings about changing to pcsb's in the future if they work out and it is possible. You must have 20" wheels to have the pcsb.
04-19-2018, 05:44 PM
#27
2nd Gear
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looking to buy 997.2 911s. 2010 with PCCB. After researching on this forum and others I have concerns about the rotors ability to handle every day street hazards. Also was told they will not tolerate exposure to chemicals including tire/wheel cleaners. Am I overly concerned? Would appreciate the groups input.
04-19-2018, 05:57 PM
#28
Rennlist Member
Miss mine that I had on my 997.2 Targa. Now have a 991.2 Cab S. Performance wise it’s pretty close for street driving. I miss the cool factor as well as the lack of break dust. However what I don’t miss is the constant worrying about hitting a pot hole and cracking the rotor , or sone dope slamming the rotor when changing tires.
04-19-2018, 06:04 PM
#29
Addict
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[quote=stoutBut for feel and function, I truly believe the "918" PCCB system available on the 981 GT4, select 991.1 models, and all 991.2s is one of the best brake systems ever equipped on a road car—and a bargain at $7400-9000~ compared to a lot of aftermarket systems out there, particularly considering the fact it was developed by Porsche and is covered under the new-car warranty for everything other than wear or damage.[/quote]
Totally agree with this. Will never order a performance P-car without PCCBs going forward.
Totally agree with this. Will never order a performance P-car without PCCBs going forward.
04-19-2018, 06:05 PM
#30
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Originally Posted by RDCR
I overheated the rear rotors a couple of times on track on the GT4 and lost 50% of the carbon density. Fronts were only down 10% after 17 track days so on the street they should last for a long time.