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Old 03-17-2016, 09:49 AM   #1
enkeivetteenkeivette is offline
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Default Brake Master Cylinder Physics

A stock C3 master cylinder is a 1.125" bore. A stock C5 master is a 1" bore. Apparently it's a bolt in swap, and a lot of guys do it, but... Ummm... Isn't that a step back?

I understand the booster provides assist only, and so upgrading the booster really does nothing for braking force effectively.

And with the same pushrod actuation it seems that a C5 master would produce slightly less hydraulic psi per inch.

So, is upgrading braking force really just a matter of better calipers and larger diameter rotors?


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