I dropped my lap times (because I could run track compound pads) and felt no difference in handling when I switched from PCCB to iron rotors.

 

As Mike pointed out, the significant size increase over steels will close the unsprung mass advantage of PCCBs. More importantly, 95%+ of us (myself inclusive) wouldn't have the driving talent to take advantage of the unsprung mass and get those last 10ths out of the car... Why? Because we're likely seconds off it potential in any case. No doubt, there will be a performance advantage but one that only a pro driver will translate to faster times... Finally, there is the cost to replace...

For street driving, I don't know that I'd be happy paying $10k US to reduce dust on the sides of the car... Imagine how many washes that could pay for assuming one doesn't wash for themself...

 

They are not at all necessary.

Unless you are specing the rest of your car for minimal weight, there is no point. Adaptive sport seats, full leather, dynamic lights? Don't get PCCB. You will not FEEL the reduced moment of inertia, but it is there.

However, PCCBs do LOOK better with the yellow paint and larger diameter.

 

I have had 2 GT3s with PCCB and zero issues. 60,000 on 996 and 55000 on 997.

 

How many track days did you do a year ??

 

Nope, but I'm still learn how to drive it.

 

I've been a PCCB fanboy all this time. Main reason being unsprung weight and the corresponding steering feel which is definitely a noticeable upgrade in crispness.

HOWEVER with the electric steering in the 991 I'm questioning the validity of my logic. It's the computer simulating wheel feedback anyways, I frankly don't know if lower unsprung will translate into anything at the wheel.

Another thing for the more tech focused crowd: the ceramics on the 991 is actually a DIFFERENT technology from the PCCBs of old. It's a shinier finish with intrinsic glass-like cracks on day 1, akin to what we see on Lamborghini ceramics (as opposed to the fiber-laced matrices in present gen cars). So the longevity datapoints in our minds may go out the door until these cars start seeing real track miles.

 

10-18-- I did replace the 996 gen I at 25,000 miles( of the 25,000 15,000 were track) the rears were still fine when i got the 997.

 

Wear rates will vary by track layout, tires, and driver. My PCCB rotors began to show the wear indicators after only 5 track days.

I agree with Crex that experiences from PCCB on older cars will not necessarily carry over onto the new 991 GT3 rotors, which have a different design. Just looking at the new 991GT3 rotors, you can tell they are different.

 

$10,000.00 is a lot of money for optional ceramic brakes. It's very very expensive.
It would be worth it if the Porsche ceramics were truly long term and proven to last on the race track with long term empiracle data. .

Do you all remember when Porsche installed ceramics on the 996 GT2 and claimed 100,000 mile guaranteed lifetime durability ....... What a joke mess that was.

Eventually the stuff will work I hope. Ferrari only installs ceramics on all their cars since 2008 and Porsche installs ceramics on all GT3 RS cars how are these cars holding out to major repeated Red run group open track day abuse?

Have a great sunday

 

For the track go steels cheaper to replace
For the road pccb they look better and will last a very long time. Also easier to resell car to the new gt3 clients who will track their cars less

 

You know what is even more expensive? Replacement PCCB rotors.

 

Why arent pccb prices coming down?

 

They've actually gone UP, believe it or not. Suncoast used to sell replacement rotors for my spyder for $15k. Now it''s up to $17.25K.

 

Porsche Math 101: "as the volume goes up so does the price!"

It is exactly the opposite of my business...maybe that's why they make so much more money?!!