Our Community is 940,000 Strong. Join Us.


looking for a self contained ABS system


deltatechx
02-15-2010, 12:12 PM
I have an '87 Jeep Cherokee Chief that doesn't have ABS. I primarily use the vehicle in winter weather and would really like having ABS. This model Cherokee doesn't come with the ABS option and the next model (a '95 in this case) only uses a 3 channel ABS modulator (single brake line to the rear) so I've decided to go with any modulator that can be easily wired. I plan to use the brake booster and master cylinder off a newer Cherokee (common mod) with ABS and custom bend brake lines to an ABS modulator and run a second brake line (or two new brake lines) to the rear. I also plan to swap my wheel hubs out with ones from a Cherokee with ABS and use those speed sensors. I won't tackle this until winter is over, but once I start I'll have a good 7 months or more to work on it (shouldn't take nearly that long, but just stating that time isn't a concern).

Please don't say this is impossible, I know it can be done. This thread is kind of my inspiration:

http://www.corrado-club.ca/forum/viewtopic.php?t=5943&postdays=0&postorder=asc&start=0

What I'm looking for is a setup similar to the above thread. Are most ABS systems self contained like this? What I'm wanting are suggestions on which ABS system to use, I want self contained (fully independent of the ECU), 4 channel modulator (each wheel is independent), and pretty much whichever modulator would be the best (make and model of the doner vehicle doesn't matter so long as I can get one from a junkyard).

any help on this is greatly appreciated.

Thanx

shorod
02-15-2010, 02:15 PM
I won't say that it's impossible to do this, but it may be impractical. For the cost and frustration it would likely be a better investment to pick up a used vehicle that already has factory installed ABS. Are you just looking for an educational project, does the Jeep have some sentimental value, or are you just looking to end up with a winter vehicle that has ABS for minimal expense?

-Rod

deltatechx
02-15-2010, 05:07 PM
It took me a while to find this jeep. Plus I've already put a lot of time and money into it. Right now I'm looking for pro and con comparisons of ABS systems from different vehicles.

RahX
02-15-2010, 07:40 PM
I would think as long as the vehicle you get it from has a similar size tire (within at least 1"-1.5") you shouldn't have too much trouble for a swap. As far as everything else, it should be somewhat easy. Make sure the sensors match what you're getting it from and hook up an LED for an abs light so you know when something goes wrong. As for a 3 channel vs 4 channel system. If you have drum brakes on a solid axle, a 3 channel is going to simplify and work just as good as a 4 channel system. The main goal of abs for the rear is to keep it from sliding around. Since the wheels are linked on an axle, you probably won't notice any difference with 3vs4 channel. Most newer abs assemblies come as a pump/ecu/valves all in one unit. Bleeding them is a bit of a chore but not impossible as you can cycle the valves manually with some jumpers.

Add your comment to this topic!