mattsho1993
SHO owner
anyone got any info on bypassing the rear proportion valve thing...... lol idk what its called but the spring thing with the brake lines in it lmao..... i have no pressure to rear right caliper..... new lines and calipers......
proportion valve?
- Thread starter mattsho1993
- Start date
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Bias Plugs from shosource. Improved my braking dramatically!
shotime1994
AirHammerAndrew
If you install a bias plug make sure your abs works.
Also you need to bleed the rear brakes with the car on the ground.
220ksho
Gen I bias
Yes. Alternatively, you can push up the lever on the bias valve with a clamp. It's designed to restrict fluid flow when the rear suspension unloads.
It can be bypassed as stated above, but you run the risk of locking up the rear brakes during heavy braking. I bypassed mine and I don't have ABS. I haven't had any braking issues, yet. But, haven't tested the limits either.
When running Bias Plugs it doesnt matter if the car is on the ground or not. You are bypassing the valve and have an unrestricted fluid flow at that point. You should disconnect the lever altogether. In my case i cut it off and threw it away.
220ksho
Gen I bias
Indeed! All it does is make noise.
I just bought some brake fittings at the local parts store and ran each line directly to its respective corner. Then proceded to remove the valve and all of its clumsy gadgetry.
I just bought some brake fittings at the local parts store and ran each line directly to its respective corner. Then proceded to remove the valve and all of its clumsy gadgetry.
jayro
SHO Member
I used a zip tie to hold up the valve when bleeding the brakes. Depending on what you want, you can leave it that way for more rear braking as well. Won't give you full force braking though.
mattsho1993
SHO owner
i have tried bleeding on ground with no avail also my abs does not work lol so.... wtf lol
turbo79
SHO Member
Anyone ever look into installing an adjustable proportioning valve in a SHO (any car, for that matter)? Where to mount one? would be the first question, seems to me. The mounting issue would be driven by how complex any brake line rerouting would be, and ease of access to the adjustable prop. valve.
Adjustable proportioning valves (as most of you probably know) are used in a lot of NASCAR and other racing, and in those cases the driver usually has access in cabin or (in open wheel) in cockpit.
Adjustable proportioning valves (as most of you probably know) are used in a lot of NASCAR and other racing, and in those cases the driver usually has access in cabin or (in open wheel) in cockpit.
rbruso
unlikely
You would need to have two adjustable valves, as the current plumbing uses a cross-car layout. Assuming you wanted in-cockpit adjustability you would need to do a lot of rerouting.
Alternately, you could just tie up the adjustment arm on the existing block. Adjustments would require getting under the tail and tightening/loosening the arm. The limitation to this approach would be if you needed more flow to the rears than the block allows with the arm all the way up.
Or you could leave it alone and play with different brake compounds front and rear.
Alternately, you could just tie up the adjustment arm on the existing block. Adjustments would require getting under the tail and tightening/loosening the arm. The limitation to this approach would be if you needed more flow to the rears than the block allows with the arm all the way up.
Or you could leave it alone and play with different brake compounds front and rear.
SHOtime2511
CGP
Again,make sure your ABS is in proper order before installing bias plugs.
Otherwise the rears will lock up first causing the car to jack sideways or spin out.
Otherwise the rears will lock up first causing the car to jack sideways or spin out.
typhoon5000
Ferd Enganear
Just to be clear, you're referring to the hoses between the hard line and calipers that are new? It is fairly common for them to collapse inside over time. I had one collapse and got zero pressure to that caliper. I replaced them with SS braided hoses.
what this guy said. if you haven't replaced the hose there is a metal bracket that holds it too the strut, rust will cause that bracket too pinch the hose closed. take a screwdriver and spread it apart if you can, i had too take a cut off wheel to mine before I could bend it.
luigisho
SHO Member
I think maybe Garry M has some experience with this. It is very difficult to dial it in properly yourself at home with no experience doing this. That's a little much unless you're doing some crazy competiton car that probably shouldn't have a Taurus as a base platform in the first place.
turbo79
SHO Member
Thought I'd ask, anyway. The bias plugs sound good, but since I'm going to get a SHO Source Stage III 12" brake set up I'll wait until that is installed.
Soon, I hope!
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