Apr 21st, 20, 11:22 AM
|Gold Lifetime Member
Join Date: Oct 1999
Location: Alamogordo, NM, USA
Installing Manual M/C with Factory 4-Wheel discs
I am building an 81 Trans Am for a friend. We are considering ditching the factory M/C and booster and go with a Wilwood manual setup.
I contacted Wilwood to recommend a M/C but they said their biggest M/C, 1 1/8", isn't big enough to supply enough volume for this system. I was surprised to hear that.
Now, it's possible I screwed up in giving them the specs for the system. I gave them the pedal ratio for a manual setup, 6:1, and the caliper piston diameters, 3" front and 2 1/2" rear. I can't measure the rears at the moment so looked around and found the 2 1/2" dimension online. Is this correct?
Has anybody gone with a manual system with 4-wheels discs? We realize the pedal pressure will be increased and he's prepared to deal with that. Hopefully, it won't be too much effort.
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