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Old 12-01-2005, 07:51 PM
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Default Re: The Final Word on front disc brakes

Master Cylinder bore has a large effect on braking power.

If you get a smaller bore master cylinder, then you are increasing the pressure generated in the brake lines with the same amount of pedal effort. That is going to improve the caliper grip force by the same amount.

A 10% smaller (area) master cylinder would be an EXACT EQUIVALENT to 10% larger (area) pistons in all your brakes. Of course, there is a practical limit: too small a MC and you won't have enough fluid displaced to properly brake.

Read any basic book on Hydraulics if that explanation isn't clear.

I think that the success of the PBR setup is that the PBR calipers are probably stiffer than OEM (and others too?). Therefore, they are capable of applying a greater force DESPITE the fact that they have a smaller active area than some of the other choices.

Again, I hate to beat a dead horse but I've clearly stated that none of this takes stiffness into account.
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