Anyone ever totally gut the proportioning valve - Third Generation F-Body Message Boards

drperformance · 10-31-2009, 05:21 PM

I am in the process of trying to get more rear braking after installing Ford explorer rear disks with a Moser 9" rear end. This is a drag car that I foot brake off the line and I want more holding power to stall it up higher. My car was a disk/drum car so I replaced the proportioning valve with a disk/disk from a 92 but it still does not seem to hold the rears on jack stands above 1200 rpm.

After reading many posts I found that many of people have probles with rear brakes and the remove the valve/spring from the front of the proportioning valve (combination valve). From my understanding though this could create an issue with the delay valve in the rear on the proportioning valve on the front brakes.

So has anyone ever totally gutted the proportioning valve, front and rear? I am thinking that I should remove both and place a adjustable Wilwood valve to the rears.

Thanks

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//<86TA>\\ · 10-31-2009, 06:23 PM

i did.

i gutted the entire valve then cut the front section off for the rear brake lines. So i only have the rear part that the front lines attach to. I had a friend weld up all the extra holes so now its just a "t" fitting or sorts. Then i plumbed in an adjustable valve for the rears. Dont have a pic, but i can get one.

drperformance · 10-31-2009, 07:56 PM

I am thinking that I am going to weld the holes closed on the two factory bolts (front and rear) after I gut it to keep it sealed. Still run the front and rear lines from the proportioning valve but add a adjustable valve right under it on the rear line.