Topic: Electronic Timing advance adjuter box thingie... someday...

[midnightcwby]

wrangler387 , littleredbeater
I would love to make option A work. The EDIS is a good fall back plan though, I just don't want to have to change that many things from stock.
I LOVE  building electronic devices,  so you can bet I'll take plenty of pics while I build it and offer them up to anyone who wants them.  I'm doing as much research as my brain can handle right now to catch up on the theory and design principals I'll need to developed/sharpen to meet this challenge.  

Wrangler 387, do keep in touch if you find that the other people you know who are re-writing their thermfactor.inc and their airdenfactor.inc files to allow them to use the stock jeep MAP and CTS sensors.  I really didn't want to ditch mine for GM units unless I really had to! I'll look into what I'll have to do to get the MS to work with my stock stuff for timing advance.  To cheat for now though, do you know what I'll need to setup the MS to just handle fuel delivery, not spark, on these 2.5l's.  I know I won't be able to use the stock ECU to control my distributor anymore, so what would be an easy fix for the time being (like an old vacuum/weight advanced GM HEI distributor or something, just to get the FI working with the MS)?

[wrangler387]

midnight - when i put on MS i will be running fuel only at first, and if i have the time i will try and get the stock jeep stuff to work, otherwise i'm going to slap on EDIS parts to control timing. I am going to run a second set of CLT and IAT sensors instead of playing around trying to get the sensors to feed both MS and the jeep ecu. I will tap the TPS sensor though. And also i'm goign to use the MAP sensor that is built into the MS unit. Here is the link to the megamanual index:

http://www.megasquirt.info/v22manual/mtabcon.htm[/url]

[midnightcwby]

I noticed that HESCO sells a harmonic balancer/crank trigger unit that will probably help with an MS install.

I'll set it up to control fuel only first as well.

[wrangler387]

I bought the MS V3 mainboard, and stimulator kits along with wiring and GM intake/coolant sensors. I'm planning to put the board and stimulator kits together next month, and then start prepping the jeep for the install. I'm hoping to get this done this summer once i'm out of school. As for timing control, i am most likely just going to run EDIS unless someone gets the stock stuff to work right.

I'm going to take pictures of the whole install into the jeep to post up on this site, hopefully it will become a sticky and others might start to follow our path.

[midnightcwby]

Right on!

[wrangler387]

hopefully all goes well, getting timing will be one of the last things i worry about for the jeep, so it will be a fuel only write up for awhile. I plan to turbo the jeep, rebuild a tranny and install a performance clutch, and then do something with my rear axle before playing with ignition. I'm hoping someone else figures out how to use the stock set-up by then hahaha.