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ABelzile
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If you track your car, the best is to do it when you brake hard so the brake pedal is closer to the throttle. If you change your pedals, you will probably switch it back to the original ones at some point and you will find these aftermarket pedals disruptive. It is normal to have problem with that when you start practicing or when you are not braking hard enough on the streets.
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In my opinion, TMP is a pain and is useless if you go on a track. I had it disconnected along with the pads wear sensors since they have to be changed so often and are not useful because you can be on the metal on the front breaks without a warning ! Now I am not distracted by false warnings anymore and you have to check your pressure manually and pads wear visually anyway.
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These are great brakes on a track. The issue is not the power of the brakes but the durability when used on a track. I still can't find the actual thickness of the disks when they are new... I can't believe that they are in normal condition since we can see the wear indicators (3 dots) and I start to feel vibrations in the back when I'm breaking hard.
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UPDATE I got a call from the dealer and apparently the rotors are originally 28mm thick so no real wear at this point... If this is true, it means that I don't need to change them and this was a false alarm from my mecanic technician. I hope this is true. I plan now to keep these rotors and measure them periodically to ensure that the thickness doesn't change materially. I'm still wondering why the 3 dots (wear indicators) appearing on the surface of the disks are visible ??? Anyone with these dots visible on their disks ?
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I hope to find instead a solution which would allow to replace only the rotors (for iron disks) and the pads. Apparently CDOC have a kit that works. Still waiting for a final answer. Since I also use 18" race wheels (FIKSE) with slicks, I would prefer to keep the same calipers. The rear ceramic disks are 27.9mm at the moment... and I also now drive the car with TC OFF whenever I'm on a track and I didn't notice ANY difference. It looks like the TC system is too sensitive and intervene often without any apparent sign for the driver.
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The dealer looked at the rotors and they say they are still good even if we can see the wear indicators (3 dots on the surface)... They are 28.5mm thick and the low limit is 27.7mm. My understanding is that thay come at 30mm new, so it still means that they are 2/3 used after 5,500km. By the end of the summer they will be done for sure and I will ship it to them in a box. I hope they will recognize that this is not normal...
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My 2008 GT3 was delivered with these Pirelli Corsa System tires and I LOVE THEM. They are as good as Michelin Cup under dry conditions (if not better) and far better in the wet as long as there is not too much wear obviously. Probably even better than Michelin PS2 in the wet. I get them to 32lbs front and 34lbs rear warm. I personally don't think they wear faster than Michelin Cup but they are more expensive. Now that I started to use slicks (Pirelli D3) on race tracks, I keep them for wet conditions or for DE when the conditions are uncertain avoiding unnecessary wheels changes.
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In my GT3, I simply clip the original belts behind the back of the racing seats so you don't hear the alarm. This way, you can still use it when you are on the road (don't need the harness fo that) and keep it for the resale of the car with the original seats.
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You're right. When I bought the car, the dealer was arguing that PCCB were tested on the Alabama race track and were supposed to last for 60,000km ! Under street usage, they were suppose to last for the life of the car... If you talk to any real racer drivers, they will tell you that these PCCB overheat under track conditions and will burn very quickly.
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The problem apparently is that the Ceramic brakes are 15" in front (similar to the GT3 Cup) and are flotting rotors. If I change it to steel, I need motorsport rotors or another aftermarket brand (performance friction, Brembo, etc.). I will try to have the dealer change them under warranty and keep them for the resale of the car while I switch to steel in the meantime. These PCCB should not be sold to driver that intend to use it on race tracks !
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I am wondering if other owners had a similar problem with their ceramic brakes on a GT3. I ordered my car with the PCCB because the dealer was saying that the new generation of this system was so good that the rotors would last for more than 30,000km even with a lot of track. Here I am after 5,500km (3,000km on track), the rear rotors are toasted ! I am hearing that the TC (traction control) is eating pads (used 2 sets at this point) and disks and that I should get used to drive with TC OFF. Even though this is true, I can't understand how come these rotors are done after so small mileage ??? With the replacement cost of the ceramic rotors, I think I will change the whole system back to steel. Any suggestion for a good alternative either Porsche or after market ?