Carbon Ceramic Brakes for GTS??
#1
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I am doing a complete renovation to my 1992 GTS and wonder if anyone has explored a retrofit of ceramic brakes to our vehicle? If this is possible, I would fit 18 or 19" Carrera III wheels.
I have another car with CCB and they are great..........always stay clean!
I have another car with CCB and they are great..........always stay clean!
#2
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One local GTS has them. Owner re-engineered entire front hub to fit them but big part of the job was to get 18" Strosek wheel to fit deeper inside fender. Calipers and disks are as big as is physically possible to fit inside 18" wheel. By using smaller brakes it should be easier job. No more difficult that installing some other aftermarket brakes.
#4
Nordschleife Master
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Not sure why you would need or want them... they are easier to screw up when taking a wheel off and I have never lacked for braking effect on any of my GTS's... If you don't feel like your car stops well enough then you probably ought to figure out why, because it should! Different pads (like Pagid Black or Orange) will stop your car so hard your eyeballs will pop out of your head.
#5
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Carbon ceramic do not have the best coefficient friction. Carbon carbon do, this Is what is used in F1 and last one race for about $100k. Next best is iron, my car has been converted to 997 spec and uses the six piston caliper up front which has a much bigger pad than any 928 caliper.
The discs are from PFC and so are the pads, these are very advanced, they are carbon mettalics. This is what Porsche motorsport has gone to for the 991 cup cars. The 991 cup car stops better than the 997 cup car which uses Brembo. So my car is a hybrid between both.
The discs are from PFC and so are the pads, these are very advanced, they are carbon mettalics. This is what Porsche motorsport has gone to for the 991 cup cars. The 991 cup car stops better than the 997 cup car which uses Brembo. So my car is a hybrid between both.
#6
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No, IIRR disks and calipers are some generic stuff. Hub and some other parts are custom to fit them to stock 928 suspension arms.
Previous version had different custom hub design, 996 GT2 calipers and steel Cayenne disks. Thats one way to go to get 350mm disks and six piston calipers. There is another 928 GT in here which still has fairly similar setup. It uses less modifications to get them to fit under certain 18" wheels which have as much clearance as possible. There are some pics of this setup in archive.
Previous version had different custom hub design, 996 GT2 calipers and steel Cayenne disks. Thats one way to go to get 350mm disks and six piston calipers. There is another 928 GT in here which still has fairly similar setup. It uses less modifications to get them to fit under certain 18" wheels which have as much clearance as possible. There are some pics of this setup in archive.
#7
Drifting
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If you can get them for cheap/free could be cool. If you are buying them at cost then it's completely not worth it. They won't make a car stop any better over an iron rotor, but they do nearly eliminate all fade issues on track. For a street car it would be pointless though.
A stock GTS isn't fast enough to need carbon brakes.
A stock GTS isn't fast enough to need carbon brakes.
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#8
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Neither is a _modified_ GTS, unless it's a track car. Not that there's anything wrong with pimping out with a PCCB retrofit.
#9
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If there was several pounds, maybe dozens of pounds removed from each corner, one could really see a reason, barring money details.
#10
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Its professional bling. You get some more heat capability, but really, who here besides Kibort running a brake system designed by throwing chicken bones, needs that kind of temperature capability?
#11
Pro
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With alloy hats you'd have to think several pounds per wheel was possible. In the context of uinsprung weight this is a huge number.
If ppl thought their car cornered well on non-smooth roads they'd be on another planet with this weight reduction.
I once had cheap Mille Miglia 5-spoke cast alloys on the S4. The weight difference c/- the forged dishes was obvious when lifting the Mille's up to the hub. Several kilos I'd estimate. (Didn't know tyre weights).
They looked great but but on anything but ultra smooth roads the steering / handling had become vague and mushy as the heavier wheels could not maintain road contact.
Couldn't tolerate it any more after two weeks and went back to the dish wheels.
Like changing from a blunt knife to a razor blade.
Never again.
Then I went one step better with ROH 3-piece Modena wheels.
Lifted the 18x10" rims out of their box: was like the comedy stuff when U expect to be lifting something to be HEAVY but it's really light and you flip over backwards.
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They were lighter than the bare (forged) dish wheels and the handling improvement reflected that.
Can't wait (weight
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See: http://www.carbonrev.com/about/
HTH.
ROH 3-piece 18x10" on a friend's S4.
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#12
Pro
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Last edited by UpFixenDerPorsche; 10-14-2014 at 09:38 AM.
#13
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Thanks for everyones reply.
I would like CCB - not necessarily for performance/better stopping "power" but rather because of the weight difference at each wheel and the fact the wheels stay so clean! (I have them on an existing sports car already but it is not a Porsche).
I would like CCB - not necessarily for performance/better stopping "power" but rather because of the weight difference at each wheel and the fact the wheels stay so clean! (I have them on an existing sports car already but it is not a Porsche).
#15
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I have PCCBs on my 997 and they are awesome. Light, dustless, no fade even when carving up the mountains, and should be essentially a "lifetime" setup with no pad or rotor replacement. They take some pressure when it's wet out though - noticeably more pressure to achieve the same level of braking when it's dry - probably has to evaporate the water between the rotors and pads away before they bite. Feel when it's dry is great - nice initial bite with very progressive braking as the pedal force increases. This car also has SS brake lines and runs Motul RBF600 fluid. It will be a very expensive upgrade to do on a 928 though as usually the rotors used are $5,000-$6,000 and the calipers another few thousand. They do require more care when removing a wheel as they are brittle - if you drop a wheel on the rotor and chip the rotor, it's done, which will be a mid-4 figure mistake. I use the rods that screw into the lug bolt holes when removing the wheels and then the wheels slide along these rods as you're pulling them out of the wheel wells. I follow Porsche's instructions and use 2 per wheel so the wheel can't rotate on one and contact the rotor.