911 SC brakes, 19mm MC combo question |
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911 SC brakes, 19mm MC combo question |
RoadGlue |
Apr 4 2005, 10:46 PM
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#1
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Sonoma County Gear Head Group: Admin Posts: 2,033 Joined: 8-January 03 From: Santa Rosa, CA Member No.: 108 Region Association: Northern California |
Hi everyone,
I've recently entered the world of bigger brakes, and hoped I could get some feedback here about proportioning valves. I have a set of 911 SC brakes ready to be mounted, and wondered if I'll get the correct brake bias by ditching the stock proportioning valve. I have the "T" fitting, but wonder if I shouldn't put an adjustable proportioning valve inline. Seems like it would always be better to have an adjustable proportioning valve, but is it absolutely necessary with that brake configuration? Mmmm, brakes. Thanks! Randy |
andys |
Apr 5 2005, 02:09 PM
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#2
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None |
If there is a tested and established combination of parts known to work, then I suppose that would be ok. However, I see no way of obtaining proper or optimum brake balance without some from of adjustability built into a retrofit system (or perhaps swapping $$ parts until you reach good balance). Anyone with roadracing experience knows the value of this. (And) Yes you can have too much front brake.....A symptom of this becomes evident when under hard braking, the car feels like it wants to swap ends or becomes directionally unstable. Crank in some more rear brake, the car becomes stable on entry and you'll shorten up your braking distance. Too much, and of course you'll start locking the rears. BTW, the rear rotors on my Carrera brakes are slightly larger in diameter than the fronts (282mm F vs 290mm R). FWIW.
Andy |
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