fastdiablo

I see a lot of folks specing PCCB, but it wasn't something I really even considered when I ordered my GTS. Did I miss something? I can maybe see the point on a GT3 or RS, but for a primarily street vehicle, why are people buying these brakes? The cost and cost to replace has to go beyond having yellow calipers, but I don't "get it" given overall braking performance is apparently pretty comparable. Is the weight difference meaningful? Thanks for any knowledge.

shaytun

Less brake dust.

mdrums

Because they don't know... ;-)

ipse dixit

FIFY

But you're right, unless you like the looks of yellow calipers, or simply detest brake dust, or both, then a dedicated street car does not need PCCBs.

But then few things about buying a 911 is about need; it's really just about primal want. So there's that too.

And, I know I'm in the minority here, but the new Gen 3 PCCBs are a must for a track dedicated car or even a car that sees occasional track time.

Archimedes

I had no intention of speccing PCCB brakes on the 991 I had on order, then I wound up buying a leftover '14 at a huge discount that just happened to have them. Now I'd wouldn't buy another 991 without them. The pedal feel is better, they have more initial bite and, as a bonus, no brake dust. Plus, they are rumored to last a lot longer. They're awesome. Whether they're worth the extra $ is up to the individual.

tcsracing1

less weight. less dust.
less storage rust.

And the pimp factor

Petevb

Pedal feel is subjective, but keep in mind that the preference of average customers runs counter to that of professionals.

Porsche ceramic brakes are intentionally tuned to low pedal effort, in opposition to motorsports practice which tunes for higher forces and improved modulation on the limit. Porsche knows this of course, but admits that customers who spend nearly 10k on brakes prefer to "feel the difference".

I and the better drivers I know are not fans of PCCB pedal feel, and Walter Rohrl recently mentioned that he personally wouldn't spec them. They do have weight advantages and they won't overheat in extreme situations. However realize that in those same situations (track) the disks are by definition near their operating limits and eating themselves rapidly due to oxidation. Replacement cost is $20k+ for a disk set...

Reduced brake dust is particularly apparent on a street car, but the low pedal effort is a big negative for me. And like WR I could never recommend them to those that track.

Corvette uses the same supplier for their own ceramic disks, and replacement cost is just over 5k per set. At that price (with higher pedal effort) I'd reconsider...

One perspective. From a PCCB owner.

DD GT3 RD

Funny thing is most track rats remove them as running costs are so high. So unless u have money to throw away or like the look there is no need. Almost better for the street as they last forever under street driving conditions

jury_ca

One option that hasn't been mentioned is that you can retrofit iron rotors and regular pads if they ever require replacement. It's a way cheaper route than replacing PCCBs.

Key Left

The 911 was designed with the engine weight in the back to give optimal wet weather traction, especially exiting corners. ( A mid- engine car fails to equally perform in this condition unless it has a big rear wing and is running fast enough to gain downforce.) PCCB adds nothing to this scenario , as the unsprung weight is less, but the water sweege rate is greater due having more drainage holes.

008

It's the one option I regret as the third gen has proven (at this point) to be just as cost effective on the track and the unsprung weight is undeniable. With the current iron rotors having fixed bridges the swapping of pads has become more of a chore. I'd do it differently were I ordering today.

LexVan

Would I like less brake dust? Sure. For $10,000? No way!

Would I like gigantic calipers and rotors peaking through my Sport Techno wheels? Absolutely! But they're yellow. I've never liked that color of caliper.

john45in

I'm with LexVan. If I somehow ended up with a PCCB car, would have to paint the calipers black. Just can't stand the yellow.

LexVan

As for brake dust, I can buy 1,428.5 cans of this at WalMart:

FlyingFinn911

Do you guys think the lower un sprung weight of the PCCB can be felt in any susbstatial way in handling at the track or street. What's is the weight difference of the rotors vs steelies?