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Author Topic:   Manual Master Cylinder Questions
Dirt Roller

Total posts: 25
posted April 07, 2005 10:07 AM  
Does anyone know the name of the web site that discusses changing from a booster style setup to manual brakes. I thought it was US Brake but I can not find the article I once read. It talked about drilling a new hole in the pedal a little higher or lower to change the lever ratio.

Dirt Maniac

Total posts: 165
posted April 07, 2005 12:26 PM  
If you drill the pedal higher, it will give you more leverage. I kept the booster on my car and disconnected it. I unhooked the brake rod and I would only move about 1/2" so I just cut the brake pedal and lengthened it to get more leverage. If you are going to remove the booster and mount the master cylinder flat against the firewall, the pedal has already got another hole in it about 1.5" higher. (Assuming you are using a metric style car)

Dirt Full Roller

Total posts: 40
posted April 07, 2005 01:48 PM  
We did basically the same as Raceman17, but we opened the booster and took out the spring.

Dirt Roller

Total posts: 25
posted April 10, 2005 09:30 AM  
Thanks Guys, I did find the website that has all kinds of good tech articles. It shows all different ways to plumb a system, talks about manual and booster, difrferent size bore m. cylinders and so on. Site is

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