Rear brake pads are fried!
09-10-2005, 01:18 PM
#11
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Alrighty then- so the unvented, smaller pads on our cars get toasted in severe braking situations...like coming into downhill turn 10a at Road Atlanta at 135mph...
time for an upgrade...
time for an upgrade...
09-10-2005, 03:03 PM
#12
Originally Posted by Sebringer,Sep 10 2005, 04:18 PM
Alrighty then- so the unvented, smaller pads on our cars get toasted in severe braking situations...like coming into downhill turn 10a at Road Atlanta at 135mph...
time for an upgrade...
time for an upgrade...
Also - pad wear is directly related to driving style and how fast the car is. Two drivers with similar driving styles but one car being FI and running 10mph higher speeds will see higher brake temps and more wear. Or, similar cars but one driver consistently late brakes and/or trail brakes will see more wear.
I've killed supposed "track/street" pads in one track day. I nearly toasted the Cobalts (VR's) at CMP this summer, and did manage to fry the rubbers out of the calipers. But then nobody passed me either (well, as long as I kept it on the pavement).
09-11-2005, 03:43 AM
#13
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Originally Posted by cdelena,Sep 9 2005, 09:06 AM
I found that:
1) OEM pads are unacceptable for track use.
2) Any pad fade will result in higher pedal pressures overheating and causing extreme wear with the rear worse than front as there is limited air flow.
I solved all track brake problems I had by:
1) Using track pads at the track.
2) Ducting the front pads so they always stay cool enough to fully do their share of the work.
1) OEM pads are unacceptable for track use.
2) Any pad fade will result in higher pedal pressures overheating and causing extreme wear with the rear worse than front as there is limited air flow.
I solved all track brake problems I had by:
1) Using track pads at the track.
2) Ducting the front pads so they always stay cool enough to fully do their share of the work.
cdelena gives a good summary. The most important track upgrade to your car are a good set of pads and high temperature brake fluid. I've been very pleased with the performance of Cobalt pads, both in the S2000 and my Miata. If you decide to track the car regularly, brake ducts are also a good idea.
09-11-2005, 04:39 PM
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Originally Posted by modifry,Sep 10 2005, 06:03 PM
^ Just curious - any idea what lap times you were running? 135 on the back straight is damn fast, I assume you're FI? Or have some really unbelievable race tires?
Late brake past the billboard and hold on. Still can't crest the the hill and turn 12 full out, though- too nervous there...
Thanks for the pad recommedations all. Whose the best source for Cobalts? How about Porterfields? I have a good source for them.
09-11-2005, 06:04 PM
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Originally Posted by Sebringer,Sep 11 2005, 05:39 PM
Whose the best source for Cobalts?
09-11-2005, 07:29 PM
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Originally Posted by mxt_77,Sep 9 2005, 08:54 AM
Holy crap! 70K out of brake pads... including 2 track days? Usually, if I do a 2-day track weekend, I expect to replace brake pads at the end of the weekend. This was the case both when I was using OEM all around, and also now that I use Cobalt SpecVRs on the front and OEM on the rear. However, when I used OEM all around, I would expect to replace front and rear at the same time. With the Cobalts, they last longer than the rear.
Oddly enough, I managed to go through a set of rear pads (down to the backing, gouged the rotors) in one track session at Hallett a while back, even though they had 80% life when I left my house. I still haven't figured that one out, but they must've been dragging or something.
Oddly enough, I managed to go through a set of rear pads (down to the backing, gouged the rotors) in one track session at Hallett a while back, even though they had 80% life when I left my house. I still haven't figured that one out, but they must've been dragging or something.
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