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^ +1 - All very theoretical but I suspect the tires are really the limitation vs the brakes. I have no doubt that for the first 2 to 3 laps PCCBs will clock a faster time, but after that I would suspect they will be very close to equal as the tires start to get greasy. Early on I would bet the advantage is going to come more from reduced rotational mass leading to better acceleration and direction changes, less so than improved braking performance which I would view again as tire limited with R compounds.
With slicks I think is where you will see PCCBS shine.
That said, I order PCCBs because I think they look better...
The PCCB car I drove wasn't mine, so I didn't push too hard and I have no lap times for comparison. But FWIW the overall handling of the PCCB car felt better with overly high pressures in the high 30s as compared to my car with pressures around 33.
Again, I suspect that the difference in handling will be less at other tracks. At this fast but bumpy track, I suspect that the reason for the difference being so noticeable is that the damping is much better controlled due to less unsprung mass with the PCCB.
first post on Rennlist, from France.
I know own a 991 RS for the last few month and went out on track twice in Dijon and Magny Cours.
After owning a 997 GT3, I can tell the 991 RS is a terrific car, much faster if more "electronic", has to keep my 997 for the stick.
Both PCCB cars, replaced them to brembo 3 steel on the 997 cause they were dead after 10K km. no great difference, and I am pretty fast, at least always within the 3 fastest cars out there. 991 much faster, and PCCB are just great, 800km of tracks and no sign of usage even after a check at Porsche Workshop. However, very fragile. Here what I have on a rear disc, Porsche says no problem and it is good, just aestitics. They said a stone on the clapier would have done this. quite surprised I had 2 RS4 on ceramic discs, done 150K km with these cars, discs never had a scratch. Trying to get it changed.
What is your point of view.
I love Dijon, very difficult track to go fast and Magny Course is easy but big, fast and fun!
I drove my heart out in Dijon killing many sets of tires :-)
With 3 scratches in the rotor, I am more inclined to think the pad broke up or something funky because it would be a big coincidence that you have 3 rocks in one caliper and none in the others. Unless maybe it moved around? Did you find it after taking the pads out?
Anyway, I wouldn't replace it, should be fine.
first post on Rennlist, from France.
I know own a 991 RS for the last few month and went out on track twice in Dijon and Magny Cours.
After owning a 997 GT3, I can tell the 991 RS is a terrific car, much faster if more "electronic", has to keep my 997 for the stick.
Both PCCB cars, replaced them to brembo 3 steel on the 997 cause they were dead after 10K km. no great difference, and I am pretty fast, at least always within the 3 fastest cars out there. 991 much faster, and PCCB are just great, 800km of tracks and no sign of usage even after a check at Porsche Workshop. However, very fragile. Here what I have on a rear disc, Porsche says no problem and it is good, just aestitics. They said a stone on the clapier would have done this. quite surprised I had 2 RS4 on ceramic discs, done 150K km with these cars, discs never had a scratch. Trying to get it changed.
What is your point of view.
Stone in caliper maybe is the No.1 issue that could damage the CCB on daily basis.
As for your scored rotor, Porsche is in the business of selling you new parts so if they tell you the damage to your rotor is cosmetic only and you don't need to purchase a new one, I'd feel pretty comfortable with not replacing it.
Thanks a lot to all of you for the quick response.
New pads on the rear, checked the changed ones, a lot of cracks, will send a letter to Porsche Germany with pictures.
Porsche won't write on paper that everything is fine, workshop asked Porsche AG for a disc swap....not accepted.
Trakcar, what are your laptimes on Dijon and Magny cours ?
I was running on 1:30:60 in Dijon and 1:54:70 in magny cours with a passenger each time.
Man, you are fast.
I thought americans were much slower in Europe ! ;-)
Well done. Only thing to make me smile again, your first and second day videos, my time was after max 1h30 on each track with this car !
LOL exactly, I go fast slowly ;-)
And I'm Dutch , maybe that helps..
We love to see video's!
The first day at Dijon in the snow.. then rain and freezing made it very difficult to get a rhythm. Once it was dry I discovered that Dijon eats one set of MPSC2 per day, so into town to a truck service to change tires....
After the Ring, I think its one of the most difficult tracks I have ever been to.
My coach at Magny Cours was Max, French CUP champion, he helped me go fast less slowly
04-05-2016, 10:20 AM
then rain and freezing made it very difficult to get a rhythm. Once it was dry I discovered that Dijon eats one set of MPSC2 per day, so into town to a truck service to change tires....
