Not Ranked
Vacuum pump my a$$$$$, hell why do use a vacuum pump that generates 30"? Nothing explains it better than below:
As you can see the best set-up has 3.5 times the braking power of the worst (current) set-up. I guess if we could increase our vacuum 3.5 times from 12" (by the way impossilbe on earth) we still would not have the same braking capacity.
This test was done with a valve spring tester we rigged onto the brake pedal. Engine not running.
With a 150 lbs on the brake pedal we used a torque wrench on the rear axle to see when the disc will turn.
Dynalite 4 piston rear 280 ft/lbs
PBR single piston 180 ft/lbs
Wilwood single 41mm 130 ft/lbs
Wilwood single 34mm 80 ft/lbs
If this does not explain the problem, nothing will.
I do not care if you have 40 inches of vacuum, if the engine is not running it does not matter.
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