997 GT3 PCCBs - Are they worth it?
10-08-2006, 11:07 AM
#31
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I've tried both the steel and PCCB brakes (gen 1 and 2) on different tracks, all my future cars will have PCCB brakes.
I'm more wary of stories about "my brakes failed and it's not my fault" than I am about Porsche's engineering capabilities.
Maybe I'm too conservative, but they work for me, the feeling and comfort of that initial bite and ongoing pedal consistency is worth every penny.
Of course, if it is a budget issue then the steel brakes ain't shabby either!
I'm more wary of stories about "my brakes failed and it's not my fault" than I am about Porsche's engineering capabilities.
Maybe I'm too conservative, but they work for me, the feeling and comfort of that initial bite and ongoing pedal consistency is worth every penny.
Of course, if it is a budget issue then the steel brakes ain't shabby either!
10-08-2006, 03:40 PM
#34
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Looks like your pads (or lack of) did the damage! An expensive lesson, but hardly Porsche's responsibility! It's up to the driver to maintain the car properly, whatever the circumstance.
10-08-2006, 08:54 PM
#35
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That looks like pad glazing - not that I know much about PCCB, but rather that I've seen plenty of that on steel rotors from people without cooling or running a street pad when they should be on full race pads. The rotor itself looks "normal" to me.
There was a tool out there that looked like an octopus that scrubbed rotors that were glazed up. I wonder if you can have the rotors machined?
Again, I don't know anything about PCCB other than I'm considering them...
There was a tool out there that looked like an octopus that scrubbed rotors that were glazed up. I wonder if you can have the rotors machined?
Again, I don't know anything about PCCB other than I'm considering them...
10-09-2006, 05:28 AM
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The PCCBs on the forthcoming 997 GT3 have variously been described as 'Generation 3'. The in house technical bulletin describes them as being lighter, more durable, with better cooling and slightly greater rear brake bias.
The advantages are, supposedly, greater braking performance, negligible fade, no corrosion, no brake dust, 250,000 mile service life and, most importantly, significant unsprung weight saving. The latter contributing to improved handling and ride.
Views are obviously polarised, based on experiences with the earlier PCCBs, but the new 997 GT3 will have been designed and developed around the PCCBs, so I would expect them to deliver.
They are not cheap. But, it's cheaper to spec PCCBs from new and then change to steels later if you don't like them, than to spec steels, regret it, and to upgrade to PCCBs later. If that makes sense.
The advantages are, supposedly, greater braking performance, negligible fade, no corrosion, no brake dust, 250,000 mile service life and, most importantly, significant unsprung weight saving. The latter contributing to improved handling and ride.
Views are obviously polarised, based on experiences with the earlier PCCBs, but the new 997 GT3 will have been designed and developed around the PCCBs, so I would expect them to deliver.
They are not cheap. But, it's cheaper to spec PCCBs from new and then change to steels later if you don't like them, than to spec steels, regret it, and to upgrade to PCCBs later. If that makes sense.
10-09-2006, 07:09 AM
#37
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Originally Posted by Mad Manx
, greater braking performance, negligible fade, no corrosion, no brake dust, 250,000 mile service life and, most importantly, significant unsprung weight saving. The latter contributing to improved handling and ride.
R+C
10-15-2006, 02:21 AM
#40
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i have PCCB's on my 997 GT3 (took delivery last month).
took the car to the 'Ring, and to my surprise, i noticed the pedal going a bit soft after only a few laps.
disclaimer: i am NOT by ANY stretch of the imagination a ringmeister. in fact my best lap was well above 9 min 30 secs. so i'm pretty slow out there. perhaps its coz i was so clumsy with the brakes that i didn't allow them to cool enough? (hence the change in pedal feel).
do take note-- they still stopped as well as ever, just that i didn't expect the pedal to go a bit soft, considering all i've read about how good the PCCB's are supposed to be.
anyway, will let you guys know how i get on with these brakes. i love the feel otherwise. better than the 380mm big brakes on my RT12. of course, the GT3 IS substantially lighter than the Ruf.
cheers
took the car to the 'Ring, and to my surprise, i noticed the pedal going a bit soft after only a few laps.
disclaimer: i am NOT by ANY stretch of the imagination a ringmeister. in fact my best lap was well above 9 min 30 secs. so i'm pretty slow out there. perhaps its coz i was so clumsy with the brakes that i didn't allow them to cool enough? (hence the change in pedal feel).
do take note-- they still stopped as well as ever, just that i didn't expect the pedal to go a bit soft, considering all i've read about how good the PCCB's are supposed to be.
anyway, will let you guys know how i get on with these brakes. i love the feel otherwise. better than the 380mm big brakes on my RT12. of course, the GT3 IS substantially lighter than the Ruf.
cheers
10-15-2006, 11:57 AM
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Your ceramics will be gone the way of those in the pictures above soon ...NOTE IT IS THE DISC THAT FAILS THEN GRINDS DOWN THE PADS NOT VICE VERSA there is no warning as the brakes keep on working till the disc fails... £10,000+ bill from Porsche for replacing the fronts .... I dont think many people will want secondhand GT2/3 s unless they are on steels as the cost of changing them WHEN (not if) they fail is enormous.
10-15-2006, 12:49 PM
#42
Originally Posted by Mad Manx
The PCCBs on the forthcoming 997 GT3 have variously been described as 'Generation 3'. The in house technical bulletin describes them as being lighter, more durable, with better cooling and slightly greater rear brake bias.
The advantages are, supposedly, greater braking performance, negligible fade, no corrosion, no brake dust, 250,000 mile service life and, most importantly, significant unsprung weight saving. The latter contributing to improved handling and ride.
The advantages are, supposedly, greater braking performance, negligible fade, no corrosion, no brake dust, 250,000 mile service life and, most importantly, significant unsprung weight saving. The latter contributing to improved handling and ride.
Funny, I recall a similar claim being made about Gen 1 PCCBs a few years ago... Man, those Porsche marketing folk are shameless. And they must take their clientele for a bunch of knuckle-dragging idiots.
10-15-2006, 02:19 PM
#43
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PCCB's are a $8,800 option. You can big Brembo GTR brakes, that are a step up for $12,000 and I would guess have no problem selling your stock steel brakes for $3,000. You end up with brakes that are superior, just as light as the PCCB's and you make someone elses day when you sell them your old brakes.
Here are some details:
F PCCB rotor: 12.2 lbs
F PCCB caliper (with pads): 12.6 lbs
Total: 24.8 lbs
R PCCB rotor: 12.2 lbs
R PCCB caliper (WP): 8.2 lbs
Total: 20.4 lbs
F GTR rotor: 19.8 lbs
F GTR caliper (WP): 7.2 lbs (W/OP): 5.2 lbs
Total: 27.0 lbs
R GTR rotor: 13.4 lbs
R GTR caliper (WP): 7.0 lbs (W/OP): 5.2 lbs
Total: 18.6 lbs
JCM
Here are some details:
F PCCB rotor: 12.2 lbs
F PCCB caliper (with pads): 12.6 lbs
Total: 24.8 lbs
R PCCB rotor: 12.2 lbs
R PCCB caliper (WP): 8.2 lbs
Total: 20.4 lbs
F GTR rotor: 19.8 lbs
F GTR caliper (WP): 7.2 lbs (W/OP): 5.2 lbs
Total: 27.0 lbs
R GTR rotor: 13.4 lbs
R GTR caliper (WP): 7.0 lbs (W/OP): 5.2 lbs
Total: 18.6 lbs
JCM
