Brake proportioning valve pic added

[AWS1946]

I was given a valve that is purple and marked "Speedway" it has an inlet and outlet with two mounting holes and a large lever with detents that regulate the flow through it. I tested it by blowing through it.

Anyone have experience with this valve, is it worth using?
https://imagizer.imageshack.com/img922/6571/A5goLT.jpg[img]

[DesertSasquatchXploration]

Just plumb everything as factory don't let these guys talk you into anything different. If you don't have a base line how do you Know what's really needed? Bruce Meyers didn't have extra aftermarket BS when finishing the first Baja race?? Do you need it to cruise around the desert with your dog and check out a old shack/mine site heck no....

[oprn]

Major hot button topic here! If nothing else will rally the troops to take sides and fight then bring this subject up! Lots and lots of previous threads on this.
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We had the stone age, the bronze age, the industrial age and now we are in the age of mass deception and mind control for corporate profit. (The mass media age)

[AWS1946]

I've read all the pros and cons of a proportioning valve. I'm only asking if this is a decent valve if I decid to use it. I think it is old and I can find no references to it.

[Q-Dog]

My guess is it came from SpeedwayMotors.com. Most now come with a knob, but Wilwood still makes one with a lever. Yours could be made by Wilwood or could be a china copy.

Is it worth using? I guess if you need one and you like purple ... maybe.

https://www.speedwaymotors.com/Wilwood-260-8420-Lever-Style-Proportioning-Valve,4839.html
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Brian

'69 Dune Buggy
'69 Beetle Convertible
'70 Beetle

[Wulfthang]

[oprn]

[BFB]

[Dan_Lockwood]

Apparently Speedway Motors no longer makes the lever style proportioning valves. But Wilwood still does and Speedway sells them.

From what I've found prior to this thread about proportioning valves is this, NONE of them reduce the onset surge of pressure by more than 57%... Period.

As pictured by the original poster, the valve would be in FULL bias at 90 degrees. When this valve lever is mounted horizontal, there's no reduction in onset line pressure to whatever caliper(s) you're trying to bias. There's 6 clicks from full to 57% and these are designed for circle track mainly, but other types could apply. The driver can just reach down and pull up on the lever until he gets the correct bias needed. No dialing a knob or reading anything, just pull up and count the clicks.

I doubt this is something that one would use on a buggy, off or on the road.

I'm going to attempt to run a proportioning valve to my front discs on my sand rail in hopes of slowing the brake dive on the sand in turns. I may have to eventually just totally block the front line in some manner, but I'll try the valve first.

Dan

[AWS1946]

Just from playing with this valve I believe that it goes from full open when 90.defrees one way and closed when 90.degrees the other way.

[DesertSasquatchXploration]

A front mounted gas tank would be the smartest move. Even if its smaller then the factory unit would help restore the correct weight bias.

Only someone insane would spend money on aftermarket junk trying to correct a problem they created.

They I mean the previous owner of your buggy.

[oprn]

I put my battery up front too. Another thing to consider if your front brakes come on too strong is a taller front tire and shorter rears. My sand rail at the moment is too rear brake biased. I have 28" tall front tires and 25 " tall rears. I need to switch that around.
_________________
We had the stone age, the bronze age, the industrial age and now we are in the age of mass deception and mind control for corporate profit. (The mass media age)