still having braking issues, bigger booster?
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Joined: Mar 2013
Posts: 55
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From: Biglerville, PA
Car: 86 Z28
Engine: 385 HSR
Transmission: T56 stage 2
Axle/Gears: Moser 9" 3.70 locker
still having braking issues, bigger booster?
ever since i bought my car its had poor braking with a hard pedal. all new calipers all around, adjusted the rears multiple times, prop valve spring mod and new master. its getting better, but i dont have a lot of vacuum. i thought of doing hydroboost, but want to try a new booster. pedal is firm, holds vac for a few days. about half way though the pedal gets hard. is there a bigger booster i can run? if im not mistaken, the stock is a dual diaphragm?
Joined: Aug 2006
Posts: 12,805
Likes: 107
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: still having braking issues, bigger booster?
How much vaccum are you making? If its not enough, a larger booster wont help.
Cam specs?
Cam specs?
Thread Starter
Junior Member
iTrader: (2)
Joined: Mar 2013
Posts: 55
Likes: 0
From: Biglerville, PA
Car: 86 Z28
Engine: 385 HSR
Transmission: T56 stage 2
Axle/Gears: Moser 9" 3.70 locker
Re: still having braking issues, bigger booster?
cant remember exactly, 234 duration, 490 lift. no clue on how much vac, but when revved the pedal will go down easier. it was like that stock and the only thing left is the booster
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