bora

Bob

Can you check in PET to see if the ABS unit between 04 and 05 GT3s has a different part #?

Thanks

DanH

Where is this info from? I've only ever seen it 2nd hand on forums. Does this mean the turbo S has a different ABS unit assuming it did ship with Gen2?

This is all a bit irrelevent anyway, even if the news ones last 50% longer they aren't even close to being cost effective if you track the car.

healeyg

turbo s has different abs programming as it is a different car (4WD requires a different abs program) and weighs more

boqueron

Once again thanks to everybody. My conclusion: I will not pay any overprice for Ceramic brakes... if I find one for less money with "regular" brakes...

roberga

good choice..... PCCB are not worth the extra dollors if you are tracking. Are they better? .... yes. Do they wieght less?..... will it be worth a $10,500 bill just for front rotors?......not for me.
How many race worthy steel rotors can you get for $10K? Will PCCB last 10 times longer? NO.

If the replacement cost was reduced to something reasonable as $2500 each it would be a closer call.

Janina993

Correct! Here is quote from the new GT3 brochure "To maximise cooling during extreme brake usage, the internal vents within each disc are subject to continuous development. The number of cooling channels has recently been doubled, while a new vent geometry offers a better flow of air through the disc. With moore cooling channels, there are more internal walls creating greater structural stability. Externally, these modifications are clearly visible in the form of a modified drill-hole pattern"

nielsll

Has anyone tried the ceramic coated titanium rotors? www.reddevilbrakes.com/

Nordschleife

believe it or not, iron is the best performing metal for brake rotors. Bikes can get away with other metals, but cars are too heavy

R+C

Bob Rouleau

www.stoptech.com has a good article about why cast iron is the best rotor material. After my PCCB "adventure" I agree with them!

Ray G

I think PCCB has superior performance compared to iron rotors - but they cost a hell of a lot more. So from a value point of view, iron is better. If money was no object, then I would want PCCBs.

Nordschleife

Last year the world braking record in a street legal car was set by rather horrible looking modified Porsche 'Station Wagon' (Le 'Shooting' c'est tres du jour). The stock Porsche brakes were replaced by brakes built to the design of a German brake specialist. Iron rotors on aerograde Al hats, billet monobloc 6 piston callipers. These brakes gave better braking performance than the PCCBs.

The value in the PCCBs lies not in their retardation capability, which can be matched with iron rotors, but in their contribution to the reduction in unspruing, and overall weight.

As somebody who tests brakes, from time to time, I can explain that the best retardation figures are recorded when one gets on the brakes as hard as possible as soon as possible (that is once the decision to brake has been made). At first it is slightly puckering to brake with maximum effort at 300kph, but the effect is gratifying.

For those who are interested, the rotors used are cast at the same foundry that supplies Porsche, but their interior design is more sophisticated. The callipers are manufactured in house from single aero grade aluminium billets. Their design is optimised to reduce flex, cool brake fluid and apply high clamping force, their pads have a high surface area, greater than other callipers with more pistons.

R+C

bora

I had both on my car, I don't think you can tell the difference in terms of braking.

Ray G

PCCBs have a much more linear friction response than iron. If you drive them back to back you will feel the difference. As I posted elsewhere, there are many advantages to ceramic rotors. I'm not saying they are appropriate for a passenger car.

roberga

here is the deal from my view: You can now make an informed decision. For me the biggest issue is and was the missinformation from Porsche regarding the wear issues on PCCB. I own part of it in that I did not research enough prior to my purchase. If I knew the real information on replacement it would have impacted what I paid for the car.

bora

I had both on my car and drove them back to back. I think the linear response you speak of has more to do with the pad compound than the rotor material IMHO.