Help Me Stop! [Archive] - Team Camaro Tech

: Help Me Stop!


468camaro
Jul 19th, 07, 02:12 PM
Im running a big block with a standard 69 vette master cylinder (also standard steering :beers:) but ill be honest, it be nice to have a little bit more breaking power. There is disc front drum back with steel brake lines. There is not much room for a proper booster and im not keen to spend $700 on a mini booster. I dont think i do heavy enough braking to warrent drilled and slotted rotors but maybe i am wrong about this. Is there anything else that i can look into, ie a specific brake pad, new brake fluid. Any ideas or suggestions would be helpful

Thanks
-Dusty

JohnZ
Jul 19th, 07, 05:30 PM
If you're using a '69 Corvette master cylinder, it's mis-matched to your disc/drum brake system; the Corvette is disc/disc, and doesn't have a residual pressure valve in the rear outlet port you need for your rear drum brakes. Also, depending on whether that master cylinder came from a power or manual brake Corvette, it could be either a 1" bore (manual) or a 1-1/8" bore (power). If it's a power master cylinder with a 1-1/8" bore, it will take a lot of pedal pressure to haul it down; for manual brakes, you need the one with the 1" bore (and for a disc/drum car, not a Corvette).

One a one-stop basis, drilled/slotted rotors won't make one bit of difference in "stopping power", unless you're road-racing the car and braking repetitively and having fade issues.

:beers:

BPOS
Jul 19th, 07, 06:45 PM
As usual, John is right on the money.

I've never seen a vacuum boster that costs $700! Gold plated, maybe?

If you follow John's advice and still need more braking, consider Hydroboost. If I had manual steering that I couldn't give up, I'd still put a PS pump on it and run a hydroboost for the brakes. It's that good. But it's $700 too.

400bird
Jul 19th, 07, 11:13 PM
you could get a 7" or 8" dual diaphragm booster for less than $100
i got mine from www.hotrodsusa.com

468camaro
Jul 20th, 07, 08:32 AM
thanks guys!

JimM
Jul 20th, 07, 12:13 PM
I would just try a smaller master. It will give more stopping power with less pedal pressure, and will work fine as long as there is still enough volume to move the pistons.

If you pull youre master a lil out of the firewall, you can easily measure the ID.