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Strong times. Already knew Sam is quick from personal experience. I do think harder driving wears pads faster. As for taper is it caliper or caliper mount flex? Or is it the piston sizes causing more wear on one end?
But stock pads tapered on me when I was 5+ seconds per lap slower than now, so not sure if it matters that much.
Nice trophy. Have you found your wear rate has increased with greater pace? I agree if there is a piston size or flex issue causing taper that it will happen under perhaps all conditions. My query was more about wear and I tend to think pace accelerates it and I know everyone here is a track star but I could swear I've passed a GT3 before so wanted some more data.
Strong times. Already knew Sam is quick from personal experience. I do think harder driving wears pads faster. As for taper is it caliper or caliper mount flex? Or is it the piston sizes causing more wear on one end?
I actually measured piston sizes during my last brake job. They are each the same size.
Btw, your inquiry on lap times to assess brake wear rates is a legitimate question.
My query was more about wear and I tend to think pace accelerates it and I know everyone here is a track star but I could swear I've passed a GT3 before so wanted some more data.
Taper seems to be independent of speed, at least at higher levels on track. Total wear seems to be speed dependent, but to a rather small extent. I think that's because wear accelerates rapidly when pads get above recommended operating temps, and that does not happen on GT3 even with fast drivers. This car really goes above and beyond on brake and engine cooling.
I actually measured piston sizes during my last brake job. They are each the same size.
Btw, your inquiry on lap times to assess brake wear rates is a legitimate question.
Interesting. Racing calipers I have seen have smaller trailing piston sizes to reduce pad taper wear. But I would expect Porsche to anticipate that. I am new to owning a street Porsche, having only had a cup car in the past. I am going to go lunatic fringe and try some of the EBC offerings, as they have worked well on other cars, provided to use the more aggressive pads blue and orange
Taper seems to be independent of speed, at least at higher levels on track. Total wear seems to be speed dependent, but to a rather small extent. I think that's because wear accelerates rapidly when pads get above recommended operating temps, and that does not happen on GT3 even with fast drivers. This car really goes above and beyond on brake and engine cooling.
The brake cooling is good, but you'll still run into issues after 25-30 minutes hard lapping if you are low on pad. There are ceramic heat absorber rings (someone else who knows more want to weigh in on what these things are?) inside the caliper that crack when you overheat your brakes.
It's the outside pad that takes the abuse with the stock setup.
The Brembo type V Endurance rotor and Pad setup has proven to be a great alternative. The Brembo Racing type V face type was also designed to have lower pad and disc wear for certain long distance. This is the prefect way to if youre trying get the most life out of brakes on a street/HPDE type of car.
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Interesting thread. For those who care about these type s of things... the 997 380mm brake setup has the following piston sizes:
Fronts: 28mm, 30mm, 32mm
Rears: All 34mm (these are 350mm rotors)
I've run PFC 08 and Race Technologies RE10 pads, always with Brembo Type III Rotors (different pattern than shown above with the Type V) and I get nearly no taper, with slightly higher outside pad wear. I flip pads after every 2 weekends and they wear very evenly. I get very long life out of this setup. Many, many track days. I'm not as fast as Joe but not that slow either :-) I do prefer the Race Technologies RE10 pads over the PFC. The pad wear rate is about the same as the 08, the rotor wear is less, and this was validated with the temps in the rotor with rotor temp paint. Brake feel is very good, slightly more bite than the 08 and I feel better modulation. Very confidence inspiring.
I will probably try the type V next time I replace rings.
Interesting thread. For those who care about these type s of things... the 997 380mm brake setup has the following piston sizes:
Fronts: 28mm, 30mm, 32mm
Rears: All 34mm (these are 350mm rotors)
I've run PFC 08 and Race Technologies RE10 pads, always with Brembo Type III Rotors (different pattern than shown above with the Type V) and I get nearly no taper, with slightly higher outside pad wear. I flip pads after every 2 weekends and they wear very evenly. I get very long life out of this setup. Many, many track days. I'm not as fast as Joe but not that slow either :-) I do prefer the Race Technologies RE10 pads over the PFC. The pad wear rate is about the same as the 08, the rotor wear is less, and this was validated with the temps in the rotor with rotor temp paint. Brake feel is very good, slightly more bite than the 08 and I feel better modulation. Very confidence inspiring.
I will probably try the type V next time I replace rings.
You're not as fast because you have a slower car, man!
We are all very envious that you can flip pads so easily with your car. It's a major pita with the new car having center locks and closed calipers.
I think pad tapering is dependent of the type of pads used. My buddy with a 997.2 GT3 didn't have problems with tapering using pfc08
05-30-2015, 03:16 PM
