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Author Topic:   Manual Brakes on a Metric
Hutch5375
Dirt Maniac

Total posts: 123
posted November 22, 2004 07:26 AM  
I've seen some guys with a manual brake setup on their metric chassis and was wondering if any production cars came without the heavy booster? Or how I can setup it up so I can lose that booster weight. Any thoughts guys?

M1
Dirt Freak

Total posts: 257
posted November 22, 2004 07:39 AM  
just take the booster off and remount your master cylinder without it. Then you have to shorten the shaft that goes from the brake pedel to the master cylinder. I like good brakes, more brake control, so I leave mine on.

juni
Dirt Maniac

Total posts: 184
posted November 22, 2004 08:53 AM  
You can run your master cylinder that came on your car but you better start building your leg muscles now cause it will be hard to push or go buy one for a standard brake .We use on off a 76 chevy half ton pick up . Some of my buddys use a alumin one off a 80 malibu . Either one will work.

sideways
Dirt Forum Champ
Total posts: 715
posted November 22, 2004 01:05 PM  
the 80 malibu was it manual or power?

o5racer
Dirt Freak

Total posts: 402
posted November 22, 2004 05:16 PM  
I have ran manual brakes on my stock cars for years now. With drums on the back you need a 7/8 bore master cylinder. On the brake pedal right above the pin that the pushrod mounts on there is usually a hole through the pedal. You need to move the pushrod up to that hole so that you have more leverage. On my car I have 4 wheel disk with the large GM calipers and run a 1 inch bore master cylinder. If you are running all metric calipers front and rear you could try a 1 inch or a 15/16.
There are several different sources for master cylinders.

1 inch bore-
mid 70s camaros WITH MANUAL BRAKES- the power brake models were 1 1/8 and need ALOT of pedal pressure to work. these are cast iron.

late 70s and early fords. Not sure of exact models but any parts store that still knows howto look in a book should be able to find one. These are the most commonly stocked at parts stores. They are also cast iron.

The MC on my care is for a 91 jeep wrangler. it looks identical to the ford MC but it is aluminum for those looking to save some wieght. They are more expensive though.

For the 7/8 master cylinders you will have to check in a parts book. I used to run one when I ran drums but I cant remember what it was for.

Nick

ryan
Dirt Forum Champ
Total posts: 776
posted November 22, 2004 09:01 PM  
Nick, I know where you can get a 1" afco master cylinder for $25 if your interested. He said it was new and it looked decent I think it just has been sitting in the garage for a while. That way you can get your car up to my level. lol
I'll be trying out the dual master setup for next year.

Speedway65
Dirt Freak

Total posts: 344
posted November 23, 2004 08:00 AM  
80 malibu with manual brakes are a 7/8 master.

o5racer
Dirt Freak

Total posts: 402
posted November 23, 2004 06:27 PM  
I dont want to get to your level- mines legal right now. HAHA. Actually The brakes on mine are working good and I dont think I will mess with them to much. Chassis wise the only real things to change for next year are the tranny with the 5" torque converter , a different carb, and a new center link to fix the bump steer. The rest of it seemed to work good. Now I just need to get a legal motor together.
Nick

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