Ceramic vs. Steel: braking distance
07-09-2007, 01:17 PM
#61
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Originally Posted by Terry Adams
As with many great products, most R&D is done by the factory and a little by the early adopters in the first few product generations. I am gladly paying the price for the overall benefits, least of which appears to be improved stopping distances.
In less than two months the 8th anniversary of the introduction of the PCCB rotors occurs at this year's IAA show. I think PAG have had long enough to get it right, don't you?
R+C
07-09-2007, 01:23 PM
#62
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Originally Posted by Nordschleife
Terry
In less than two months the 8th anniversary of the introduction of the PCCB rotors occurs at this year's IAA show. I think PAG have had long enough to get it right, don't you?
R+C
In less than two months the 8th anniversary of the introduction of the PCCB rotors occurs at this year's IAA show. I think PAG have had long enough to get it right, don't you?
R+C
07-09-2007, 01:34 PM
#63
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Originally Posted by Terry Adams
Agree, and that is why they will be on my TT.
.....better to travel hopefully than to arrive???????
R+C
PS I doubt you will have any problems with the Turbo, it isn't as if its middle name is WildThang
07-09-2007, 02:25 PM
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Originally Posted by Bill_C4S
Speaking of WildThang....
R+C do you expect the 997GT2 to continue the standard equipment trist with PCCB's?
R+C do you expect the 997GT2 to continue the standard equipment trist with PCCB's?
I expect that carbon ceramic and iron rotors will continue to be offered. For several reasons. Better fuel cycle with lightweight rotors, cheaper with iron rotors. Who knows what is 'standard' - its an effing Porsche ain't it?
I suspect that the new CTR will run rings round it, but at the price, so it should.
R+C
07-11-2007, 03:06 AM
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Originally Posted by Nordschleife
The brakes are not manufactured in the same way as PCCBs, they are consistent in structure throughout, I'll set out the process later.
How is this system different from the improved PCCB? Since one of your criticisms of PCCB has been its fragility on the track, I assume this is more sturdy and track-proof?
Originally Posted by Nordschleife
They are not made by SGL Carbon. The rotors are made by a small specialist high tech company that does aerospace work. The pads are made by a major pad manufacturer to meet specific requirements. I expect them to become widely used in the near future, however, given present exchange rates, I do not expect them to be widely used in the US until volume continuous production techniques reduce prices.
R+C
R+C
Speaking strictly in terms of cost/benefit ratio, while PCCB may not be able to compete with an iron system, is it not the best *among* ceramic/carbon brake systems currently available? eg. The system you are testing might be better, but it also appears to be significantly more expensive. If there is a "better" system, why would Porsche not drop SGL?
Thanks & regards,
Can
07-11-2007, 03:51 AM
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Question please: In your testing of various brakes, have you found ceramic/carbon to squeal more/ be more noisy than iron rotor? If so, any explanation or cure? Or is it more a function of the pad material?
Meaning there might be a problem with durability?
My middle name ain't wild thang either when it comes to driving 
, so all out stopping distances probably should not be of much concern to me, nor am I really hung up on stopping distances, other than for the purpose of "forum debate." 
That said, I am disappointed simple test numbers comparing Brembo GT against PCCB are not readily available. It appears every other debate about PCCB's merits starts and ends with PCCB's failure to improve upon the stopping distance of stock. I'd think the next logical question would be whether the "best" and most obvious alternative could.
Thank you for taking time to answer my many questions.
Originally Posted by Nordschleife
My only doubt about the Brembo 'big' rotors is that there is not a lot of 'meat' in them (saves weight).
Originally Posted by Nordschleife
If you read Sport Auto and Auto Motor und Sport, yoiu will see numerous tests of modified cars. In these tests the braking performance is usually measured. A lot of tuners fit the upgraded Brembo or AP brakes. If yoiu go to top line brakes, you will spend a lot of money and get terrific performance. However, for most people who notice the difference between good brakes and very good brakes, the life cycle performance of PCCBs is not superior to that of the best iron rotor based systems, whether you are measuring economic or retardation factors.
My only doubt about the Brembo 'big' rotors is that there is not a lot of 'meat' in them (saves weight). There is no doubt that the top line Brembos are state of the art, although I prefer the bloke who builds my systems.
I have read a review of the top line Brembo system in one of the 911 magazines (Porsche World, I think, tested the set up fitted to a Pcar belonging to a Brembo distributor on the left coast), it was very complimentary.....
R+C
My only doubt about the Brembo 'big' rotors is that there is not a lot of 'meat' in them (saves weight). There is no doubt that the top line Brembos are state of the art, although I prefer the bloke who builds my systems.
I have read a review of the top line Brembo system in one of the 911 magazines (Porsche World, I think, tested the set up fitted to a Pcar belonging to a Brembo distributor on the left coast), it was very complimentary.....
R+C
, so all out stopping distances probably should not be of much concern to me, nor am I really hung up on stopping distances, other than for the purpose of "forum debate." That said, I am disappointed simple test numbers comparing Brembo GT against PCCB are not readily available. It appears every other debate about PCCB's merits starts and ends with PCCB's failure to improve upon the stopping distance of stock. I'd think the next logical question would be whether the "best" and most obvious alternative could.Thank you for taking time to answer my many questions.
Last edited by cannga; 07-11-2007 at 04:14 AM.
