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View Full Version : brake booster size tall valve covers???????????



ct08
01-16-2009, 07:26 AM
what size brake booster can i run on my 69 camaro with a 454 I would like to run as close to a delco style to keep the resto mod look.

gmjj13
01-16-2009, 09:57 AM
i'm runnin tall covers with a 7" booster. 69 camaro bbc...

ct08
01-16-2009, 04:08 PM
do you think a 9 incher would clear

MuscleRodz
01-16-2009, 09:48 PM
Make sure it is a dual booster in the smaller sizes or you will be giving up brake pressure and require more effort to stop.

Apogee
01-19-2009, 07:18 AM
Mike has a good point. Single 11" boosters and dual 8" diaphragm boosters have close to the same gain at 95 in^2 and 100 in^2 area, although some would argue that the single diaphragm unit gives better feedback and feel. A dual 7" unit is about a 25% reduction in gain at 77 in^2 and will require a corresponding reduction in master cylinder bore size or pedal ratio, assuming you have the pedal travel to accommodate it. Similarly, the dual 9" units are about a 25-30% increase in gain over the 1-11 or 2-8 units...but if clearance is already an issue, definitely measure twice.

Tobin
KORE3

Steve68
01-19-2009, 11:12 AM
"G" body booster