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Originally Posted by fatlife
The real good calipers don't even have dust seals for this exact reason, although they will make crappy street brakes. Another thing that you might think about if you are serious about brakes is that the good calipers use titanium or stainless pistons, the stock GM calipers I believe use cast aluminum or something which puts more heat into your fluid.
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True about the dust seals, which is why I don't like running "racing" brake calipers for street duty-- sucks having to rebuild your calipers every few thousand street miles! Depends on your driving conditions of course.
I know Wilwood and I'm sure others offer insulating pistons (look at the figures of the Thermlock pistons on the Wilwood site) that are lower in conduction because of material selection but also offer radiant heat barriers and a reduced contact areas to keep the pistons and fluid cooler. Stainless and titanium pistons are definately better than aluminum when it comes to thermal conductivity. Wilwoods pistons also greatly minimize the actual pad to piston contact area through some clever machining and built-in airgaps for additional insulation.
http://www.wilwood.com/Products/001-...-STR/index.asp
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Originally Posted by nitrorocket
That is a an add on I will be doing, an oil cooler. Luckily, my turbo setup in not getting hot under 10 psi, which I am sure I will be under most of the time. 10 psi is still about 700 hp.
My major concern is a good brake setup I can put together so I wont spend as much time in the grass.  |
Lower boost and correspondingly higher timing will keep the EGT's down which should help minimize thermal problems under the hood with all the turbo plumbing... but I would still expect problems the first time you hit the track. Murphy is a crafty fellow.
Definately run high octane gas at the track. Your street tune which may not detonate during occasional WOT blasts on 93 octane may detonate like mad once you start using sustained heavy throttle which will heatsoak the engine and combustion chambers. You may even have to step down to colder plugs.