Adjustable Proportioning Brake Valve

So I've owned my 08 DCSB since new. Always hated the braking, even after slotted rotors, performance pads, steel braded lines, and adjusting the rear shoes...the initial mushiness of the pedal always bothered me. I know it's been narrowed down to mostly rear slop in the drum clearance, but this is what I've been wondering...
I'm no idiot when it comes to performance stuff, I've been around drag racing my whole life. Had 8 sec street legal cars. All of them have had an adjustable Proportioning valve for the brakes. It just seems to me there is too much valving initially to the rear. Am I over thinking this? Or would this allow a more balanced initial pressure to hit the front first, then rear after, taking out the degree of movent of the shoes???
http://www.jegs.com/i/JEGS/555/6302...65_G4MSGkwTO0OyEBTcngd9uQ_2CjTlpLjxoCHZXw_wcB

 

It may do just what you want. You will more than likely have to have adapters to metric...

Try it and let us know your results.

My personal feelings are that it is not needed and the brakes are just fine on every Tacoma that I have driven. But if you feel it is needed for you, by all means get one and try it out.

 

A proportioning valve limits the max pressure to the rear brakes to prevent rear brake lockup. I don't see how changing the max pressure is going to affect initial brake aplication.

 

I would have to agree with the statement above. Unless you have converted the rear brakes to disc it doesn't make a lot of sense to mess with it. From my experience of messing with the brakes on my xrunner (converted to Tundra front brakes) is that the master cylinder bore is kindof small for the 4 piston brakes on the 6 lug Tacoma. It's even smaller on the tundra caliper. I'm currently in the process of buying a master cylinder and booster to convert it over for better braking response.

 

......sub'd.......

 

It just seems to me that the master cylinder valving is bass awards. If the slop is coming from the rear, then the initial hit of the brakes should be on the front. The slack in the distance between the drums and shoes is what causes the delay. The proportion valve would change the pressure to allow less of the fluid pressure to hit rear. In reality, 80-85% of the braking is on the front, and the rears should take over after that. Optionally, it shouldn't hit rears at all, unless it's a hard brake.

 

10mm x 1.0.

Do the www.sosperformance.com rear disk swap. Join the cool kids club. Be and outsider like the few of us. Lol.

 

My question is with 4 channel ABS where are you going to install this?

 

The rear brakes should activate before the fronts do. On a drum setup at least, the rear shoes should barely be braking before the fronts start to begin to brake. It keeps the truck balance