pccb's
 

when doing the brakes with pccb's, is it the norm to do pads and rotors like with steel brakes? how do you know when it is time, do they have sensors as well?

Good God, no. Those rotors should last a lifetime anywhere but Le Mans. And the 'word' that I've overheard is that the pads last a very long time as well, but I really have no idea about that. They certainly should have wear sensors, just like pads designed for steel rotors, though I can't say of personal knowledge.

Incidentally, we don't normally replace the rotors on steel brakes as part of a brake job. Depending on the compound in the pad of choice, the rotor might need resurfacing at a pad replacement, and the rotor can only be 'turned' a few times in resurfacing before it's too thin for continued use. But deciding to 'turn' a rotor isn't even a default choice; it's a judgment call between you and a mechanic you trust.

I have never priced a carbon-ceramic disk rotor, but they have to be very very expensive. And because they are, they have to be very very good to be worth putting on a road car. Fortunately, that's true.:D

Gary

i have heard as well tht they are expensive, but supposedly last
 

at least 100k miles, i'm sure it has to do with driving habits etc, i ask cause i am looking at one with 76k km on it and wonder what kind of 'bargaining chip' i have with reference to replacing pccb's, besides the wonder that it would be not to have to worry about brake dust....and love the yellow on the meteor grey...

They are about $8500 for the front set and $7500 for the rears. The PCCB pads do have wear sensors.

Like any types of brakes, the longevity will depend on driving style, but suppose it is 100k miles in this case -- then you'd about $8k in depreciation on those used rotors. Seems like a bargaining chip to me.

I assume you're getting a PPI done, so ask the tech to inspect the rotors very carefully and advise on their condition.

BTW, I think you are overlooking the biggest advantage of PCCB's over the already excellent OEM steel rotors -- that they are much lighter.

I have an '05 C2S launch edition with PCCBs and 51K miles. No track use, but I'm not afraid to 'use' the breaks as much one can on the street safely. The rotors show virtually no signs of wear and I have 90%/95% pad remaining on the original pads. The only minor issue is the car doesn't stop very well after a car wash :eek:

So to save the breaks do you guys down shift alot to slow down?

If you track (DE's) PCCB depending on the track and your driving skill PCCB should last a year to maybe 1.5 years...if you use the correct pads. For street driving on stock pads PCCB's will last almost forever.

Carrera997re....never use the transmission to brake the car.....

Mine does that as well and I have the steel brakes...

I've have 25K miles on my PCCB's and both pads and rotors (:D) show little, if any, wear.

Thanks!!

Sorry not to get off topic but I was taught that engine braking is an important part of performance driving -- anyone else care to chime in?

Too control decent on a mountain pass - acceptable. To use the engine for the sake of coming to a stop - not acceptable, unless you are practicing heel and toe. But on the street, you'll never stomp on the brakes enough like you would on the track.

Thanks, good to know. Perhaps, I don't need to directly spray the rotors as much with water. I like really clean wheels and calipers though :o

Thanks. Yeah I was thinking of the long straightaways at the track -- hitting the brakes hard but also using engine braking to slow the car.

Edit: Just saw there's a thread currently on the same topic. Seems to explain the issue well. Conclusion: I learned something new and valuable today!

https://www.6speedonline.com/forums/...downshift.html