Zip tie = Bias plugs

[Eric VerValin]

I just kinda figured this out the other day... wonder if anyone else has figured this out. I start with it pretty loose, then give it a few more clicks until I like it...


I do this because with my adjustable rear control arms, I have no where to bolt the bracket for the other end of the proporting valve.. I had been zipting the bracket to the arm, but it kept moving around too much, so I just tied a zip tie around where the lever actually moves on the 'distribution' block ? if u want to call it that..

I'll get a pic here in a little while.. just figured I'd share while it was fresh on my mind..

 

[Racer X]

It's more like zip tie = 60% bias, which is the max bias with the stock valves.

 

[Eric VerValin]

Hmmm.. so probally a little off "all the way" is about what I'd be after probally.. otherwise those rears might fall to peices at a good speed.. lol It doses brake pretty neutral tho.

 

[SHOZ123]

With the valve innards still intact it will never flow as well as with the plugs.

 

[Eric VerValin]

Well... how much would ya want... I got 96 with carbon metallic pads, and 92 vented rears.... i would think too much would heat those little ones up too much... I remember my 91 back in the day lighting a set of brake pads on fire they got so hot once.. seen peices flying out the rear wheels

 

[SHOZ123]

I ran my rears with the plugs and Cobras on the front. The rears worn as fast as the fronts. As long as you have a working ABS then there is no problem.

 

[Eric VerValin]

why would you necessarly "need" abs tho? Stopping over bumps?

 

[SHOZ123]

Because the rears will lock up as the weight shifts forward and unloads the suspension.

 

[Eric VerValin]

hmmm.... well to be honest with ya, I didn't have that issue yet.... since I put these bigger wheels on, i can feel the need for more brakes already, and wanted to make sure I was getting something outta the rears..

I gotta work on it today... maybe I'll find that bit and clean those holes out and get my sensors back in the holes.. lol They got the ziptie mod for now too.. lol


But all that being said.. I have intrax, and newer tokikos so maybe that helps keep it from nosediving so bad... ?




Either way, I did think about it possibly locking up... its something I'm kind of waiting on.... glad to hear someone confirm that..

 

[SHOZ123]

Well you don't have to have the ABS, you can lift up on the brake as you enter the turn too fast...... :dig:

 

[Shoaz]

Well you don't have to have the ABS, you can lift up on the brake as you enter the turn too fast...... :dig:

Yeah, I really don't understand why people want to take a chance with it on the street. Since surface conditions can change wildly and unpredictably on the street, having the rears (or even one rear) lock at an inopportune moment can ruin your day. What would easily be a recoverable moment gets turned into preventable damage or worse.

It's not hard to mount the bracket for the bias valve on aftermarket arms:



When the ABS failed (and resisted several attempts to fix it), I zip-tied the bias valve CLOSED, i.e., effectively turned OFF the rear brakes. Otherwise I'd have been dragging the inside rear wheel around corners locked up under trail braking, and Hoosiers are freaking expensive.

 

[Eric VerValin]

Welll shoudl I say jack up the rears until most of the weight is off the rear tires, and then decide where to mount that bracket so the valve is at the full 'closed" spot? then make sure it closes / opens when the car drops back down?

I just wonder because the arm is so straight when its on the ground with the intrax back there.

 

[Wildstar]

I've had the plugs in for years, never had a problem with lock-up. ABS is working. I usually run a slightly lower friction pad in the back. Porterfield R-4S in the front, Performance Friction from Autozone in the back right now. I think. The rear pads need changing so rarely, that I forget.

In the LeMons car we run R-4 in the front and R-4S in the back, with plugs. The bias seems to be perfect.

 

[Eric VerValin]

See I have PFC's up front on 96 brakes, and 92 organics in the rear... I dunno with it all the way, it sure seems like it brakes a lot straighter... almost has that feeling like im pulling a trailer with electric brakes... I kinda like that feeling for a change..

 

[sho4life]

has anyone ever crashed their sho because of rear bias plugs? if so i'd like to know how many cases have been reported. i don't think i'm playing with fire here

 

[frosho]

I remember reading about a few instances of the rear end swinging around unexpectedly. I think they all managed to save themselves, but they're lucky. I think SHObill was one of them, can't remember the rest.

 

[1993MTXSHO]

Of the instances that the rear end swung out, how much was from actual rear brake lock up, and how much was throttle lift oversteer? I bet some cases were throttle lift oversteer.

 

[frosho]

I'm not including lift oversteer. I've run into that quite a few times myself. My post was specifically about rear brake lockup.