Quote:
Originally Posted by Radiation Joe
You are right about the BMW brakes not being in the same league as other manufacturers (my Audi has eight piston Brembos that are good for maybe 5 laps before they overheat). But honestly that's not a function of the Brembos not being up to the task, it a function of Audi's poor heat management of the braking system.
There are two real disadvantages to the stock BMW brakes. One is the rubber insulators that the guide pins are mounted in. They allow flexing of the caliper and uneven pad contact. It's the first thing I replace and will be done on my new M3 within a month of buying it. See the second link in my post above.
The second is more subtle, and can only be fixed by replacement. The stock BMW calipers are heavy. Multi-piston calipers are significantly lighter. However, 99% of the people that buy multi-piston brake upgrades also buy oversized rotors which defeats the advantage of the lightweight caliper. The best brake upgrade for a BMW M3 (BAR NONE) is a performance friction upgrade using stock size Performance Friction full floating rotors. Those rotors are significantly lighter than the stock BMW rotors. Anything else is just posing. [forgot to say the PF upgrade is with new calipers]
Hope that helped out.
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Joe, do I take it you've decided on the M3 then? With your track/racing background, I think it'd be a better fit for you. If you do end up with the M3, I'm hoping you can give me some pointers and walk me through an install of brake upgrades for the M3. I upgraded the pads, rotors, and lines in my truck, but this feels like a different ballgame.
Quote:
Originally Posted by Radiation Joe
I enjoyed yours and Stuka's conversations about GTx Porsches on the other forum. Education is good.
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+1