Took my 997 RS to the dealer to chge brake pads, oil, etc. Calls me today and tells me "next time around" I will need new (pccb) rotors. Car has 8,500 miles and have done about 15 track days. Does this sound right???

Thanks for the feedback

 

No, not according to the PR Porsche claims for them. According to Porsche they should last forever.

 

if you do a search of the posts, there's a great discussion thread on this.

 

I have a friend that has PCCB in his TT 700hp with more than 25 TD and several sets of pads with the original rotors.

 

From what I've heard they should last for a loooong time, as long as you don't "abuse" them.

 

<cough, bullsh*t,cough>
very popular misconception that uninformed salesmen mislead buyers with.(knowingly or unknowingly)

 

didnt mean to be coy, but they do wear, just not the same as cast iron, they will crack between holes, there is a certain tolerable amount of cracking, but once it gets excessive they should be replaced, because when a ceramic rotor fails it fails in a big way, just look at the c5r at sebring that had one explode at the end of a straight, and when that happens the pistons come out of the calipers and your pedal goes to the floor, also more common on the earlier 1st gen pccb's the rotor material would flake away especially after being overheated severely, although not as common on the gen 2 version of the rotors there are actually small dime size castings in the rotor of a different material that will flake away similar as way to be able to tell if the rotors are seeing signs of wear and excessive heating. But yes they do hold up a lot better and last longer than cast iron, and if they dont see a lot of heavy track abuse they will last a long time.

 

It really depends on how you use them. They will wear just like a cast iron rotor..
We have over 10k miles on our Gen 1 PCCB's on our GT2 with no problems and most of those are track miles at serious speeds!

Its not uncommon for them having to be replaced. Most people destroy the rotors by shocking them - going out on the track and pounding on the brakes but not bringing them up to temp correctly. They work great and surpass any cast iron set up but they do need to be maintained, they have a narrow but very high optimum operating temperature. What causes them to fall apart and the fibers start to breaking up is that the rotors have not come up to temp and the pad material is literally ripping the rotor apart.

 

How much does it cost to change rotor and pad for PCCB? I have close to 5K with several track events on it.

 

It is amazing to me that the PCCB rotors might go bad in those few miles with only a few track days.
So what is it, do they warp or what?
I remember being told that they have a life-span of 180,000 miles.
I guess never believe what you are told for the most part.

I have 6,400 miles on my GT3 with hard high speed miles and track use. So far no problems. I will say that the Dymags I believe have significantly helped in the braking effort. There is significantly less pedal effort necessary to decelerate the car.
This could have an effect on the rotor life.
What do I know.

Ranger

 

I aslo feel Dymags help a lot with the bracking in the track.
Each disc is arround 5k!

 

anyone have specific techniques for "warming up" the PCCB rotors? Do you go a typical # of turns on the warm up lap?

 

So it'll be over 10K to change the front set?

 

# of turns are for tyres to get the temperature.

For getting brake temperature up, You drive gently against the brakes during a warm up lap and make gentle brakings.

 

So help me understand something. I am saving $$ for a GT3
If PCCBs have to be heat cycled everytime the car is driven in order not to "Shock" the rotors as stated above, Which makes since to me for track duty.....

Are PCCB's a waste of money if the GT3 is not going to be tracked? But rather a GT3 street car? Or get used to replacing 5k rotors every 10-20k miles?