Thread: Brake booster and MC

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The 1-1/8" will produce less pressure and more volume. That would decrease pedal travel, but require more force. FWIW, I'm using a 7" dual diaphragm with a 1" bore to operate Wilwood discs. The car stops fine, but still requires more effort than any of my new cars. Very little pedal travel is used.

Originally Posted by daveS53

The 1-1/8" will produce less pressure and more volume. Whether would decrease pedal travel, but require more force. FWIW, I'm using a 7" dual diaphragm with a 1" bore to operate Wilwood discs. The car stops fine, but still requires more effort than any of my new cars. Very little pedal travel is used.

You are correct of course. My college fluid mechanics professor would be shaking his head. My only excuse is that it was really late when I posted that.