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Old 08-08-2009, 11:34 AM
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F350 Hydroboost

Looking for some comments on my brake setup (well potential brake setup).

-Front Calipers are 2.8 inch bore (6.15 sq inch) GM Camaro on 11" rotors
-Rear brakes are Ford Explorer disk with 1.7 inch bore (2.35 sq inch) and have the drum style parking brake.
-Master cylinder is 1 3/8" from 2006 F250.
-Hydroboost is from same 2006 F250.

MC and HB are mounted on frame rail with 2 2lb residual valves and a propotional valve going to the rear brakes.

The front-rear caliper bore ratio is 38%.

Im wondering if the MC bore is too large. I suspect the HB should provide good boost with a range of pedal ratios, however at 1 3/8 should the HB fail, I will need at least ?:1 to provide enough manual stopping power.

Anyone have any experience with a similar setup?

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