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Author Topic:   Lightweight brake rotors
NRG77
Dirt Full Roller

Total posts: 31
posted May 21, 2002 02:09 AM
Putting together a new late model and I am wondering just how massive do those brake rotors have to be. They look pretty tractor to me. Everyone seems to run much heavier rotors than necessary or at least thats what I suspect. What about running single rotors in the back only. Most of the braking should be on the front due to weight transfer under braking so how much braking do you need from the rear? Anyone have any thoughts. Thanks. TC

3dirtLm
Dirt Full Roller

Total posts: 39
posted May 22, 2002 10:25 PM
We use .380 thick steel rotors from Bicknell and have used them for the last 2 years without any trouble. The choice of brake pad is probably more criticl with the thin rotors though. We use the PolyMatrix A compound, also the use of heat shields or the Wilwood caliper with the composite pistons should be used on heavy braking tracks, to keep the brake fluid from boiling.

racecarengineer
Dirt Roller

Total posts: 18
posted May 23, 2002 01:33 AM
I never knew you could run that thin on the rotors on late models ill have to look into that. Anybody else evr run rotors that thin on a late model car?

birdcage
Dirt Full Roller

Total posts: 57
posted May 23, 2002 02:52 AM
Several years ago used to run alum. rotors on the front. they were hard anodized. worked pretty well as long as you weren't using alot of front brake. last three years I've been using berts 1/2" waved rotors. they stop as good as a 1 1/4 rotor but are lighter(5.5lbs.)and dont warp like a standard rotor can. they never fade and don't show any signs of wear. By the way I've found the polymatrix F compound works better at least for me.

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