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Old 12-09-07, 03:04 AM   #13 (permalink)
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jac mac
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Join Date: Dec 2005
Location: Gore N.Z.
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Smile Re: Can I...? Biggest brakes on 15" rims...?

One thing that many possibly not aware of in having larger rotor dia's is the increase in steering effort reqd at higher speeds. The extra mass along with the dia results in a greater gyroscopic stability effect .

Rotor warpage- while you can spend the extra $$$ and buy rotors that already had ;heat cycles-bed in- & cryo treats, the single best thing that you the driver can do is avoid heat sink after a hot lap session or perhaps a few hard stops or continous brake use down steep roads etc, is to keep driving the car for a few minutes after the brake usage. If thats not feasable in a track day situation have a couple of helpers roll the car backwards/forwards thru a couple of tyre rotations for a couple of minutes- this will prevent the heat in the pads/calipers from soaking on one area of the rotor.

Good brakes are a great thing, but remember in traffic that while you might be able to stop on a dime, Ma & Pa out for a sunday drive might not be able to. A Chevy sedan perched on top of your transaxle wont be good look in mondays paper.

Jac Mac
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