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Old 06-25-2021, 01:13 PM   #17
1project2many
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Join Date: Mar 2012
Location: Lakes Region NH
Posts: 3,158
Re: Flat Out Engineering brake question

Quote:
Originally Posted by Eagletucky View Post
Thanks to everyone that posted. Lots of good thoughts here.

I like to idea of the hydroboost, but the cost and looks kinda kill it for me. My Wilwood Master cylinder is the same size as a factory C4 unit (7/8"). The booster i just installed yesterday is a dual diaphragm 8" unit. the truck does stop better, but i still can lock up the brakes. I believe the factory booster for the c4 is a single diaphragm 9" unit. I would have assumed that the dual 8" would have provided more pressure.

I will continue looking. If anyone else has any had any success with c4 brakes, i am all ears!
I would also expect the dual booster to help more but I think it's important to look at the pedal ratio as well. The pedal ratio is what converts pressure at the master cylinder into foot feel.

Could you clarify this please?
Quote:
the truck does stop better, but i still can lock up the brakes.
What pads and rotors are you using? Sometimes the difference is very noticeable.
Also, which year calipers are you using?

Last edited by 1project2many; 06-26-2021 at 06:35 PM.
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