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Author Topic:   proportioning valve and master cylinder question
posted August 09, 2003 10:45 PM           
MY car has a adjustable proportioning valve and need to get it out of the car asp and can I run the master straight to brakes my old car i had stock proportion valve after the master what do I need to do

posted August 09, 2003 10:55 PM
the proportioning valve is for emergency braking in oem application.

if you break a rear line, inside the valve a piston moves and blocks the rear line, so you still have front brakes...

thats all it does in stock form.

take it completely out for race use. if its in you need to read a chiltons manual on proper brake bleeding. theres a button on the valve like a reset.

posted August 10, 2003 10:07 AM
Has anybody run a residual valve for the back brakes ? and is it worth puting one in ? this is a metric with front rotors and drum rears. thanks Jim

posted August 10, 2003 11:21 AM
Yes, run the residual valve. Without it you will have more front than rear brake. I've fought that problem for years until sleepy talked about it here. With the rear adjusters hooked up you will have close to even braking front to rear.

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