I've been researching this for a while and belive I have all the parts to install the GM TBI system (7747 ECM) on my 79 Dodge Ramcharger (360 CID 2bbl, but will put on a 4bbl OEM manifold during the conversion). I also have a PP2 chip burner, and a Moates G2 Adapter with the Atmel erasable chip. I will get the TurnerPro RT when I get to the point of tuning the thing.

My question is this: I would like to keep the Chrylser Electronic Distributor in the truck (without the OEM control box which is mounted on the firewall) and use it to trigger the GM ESC and ECM. Soooooo if I connect the two wires coming from the Mopar distributor to the same connector that the Small Cap GM distributor uses....... Will it work? I'm hoping that I wont have to try to transfer the pickup and reluctor from the small cap HEI to the chrysler distributor as I'm not much of a machinest. I will be removing the vaccum advance and brazing the mechanical advance weights together to "lock out" the timing advance function.

I pulled the entire TBI setup off of a 1990 GMC G30 van, 350 CID, turbo 400 tranny, lockup torque converter, and VSS sensor in the tail shaft........ But I'm not going to use the 8747 ECM from it, but will use a 7747 ECM I picked up elseware.

This is not a daily driver, but just an old hard to start, cold natured Mopar 4X4 that I keep for weekend offroad use.

If this is in the wrong forum, I apoligize in advance. I have spent the past 3 hours using the search function and cannot find an answer to this question.

Thanks

 

*Should*.
The ignition module doesn't know a 800 ohm pickup, from being GM or Mopar. Thing of it is you have to have the polarity right. Which ever way makes the engine run it's best with nothing other then the pickup, and coil connected to the module, is the right way.

Don't forget to heatsink mount the GM ignition module.

 

some of the later model gm vehicles have the ignition module mounted externally with a heatsink, I just don't remember what year/vehicles they are one. But as grumpyy said, the pick up is a pick up. ALA the resistance and the polarity are the same.

 

I know of many that have used the Jeep inline 6 distributer/ GM module combination with good sucess on 258 I6s. Would have to assume that the V8 distributer would work just as well.

I have seen GM TBI on a 318 somewhere on the web as well.

 

Thanks for the feedback guys. Hey Fast, do you happen to have any links to the information on the 6cyl's you mentioned? I plan on tackling this project in the next month or so.

 

You may mind some good info here, I know its IH, but same principles apply. http://www.justih.org/Binder-Bench/
There used to be some great efi conversion info at http://justinternationals.org but the web site doesn't come up, maybe a problem with server, maybe gone.

 

if your going to mount the module outside of the distributor, you will need to extend the pickup coil wires. i would recommend lightly twisting them together and then tape the full length of the
wires up, & then shielding them, and ground the shielding. some tin foil warped around the wires from the dist to the module & then tape it all up should work fine.

once you get it all done & tuned i think you'll like the way it runs

 

I have done a couple of Mopar's. Just tig welded a plate to the dist for the module, installed a FAST harness. We used a adapter from Street & performance electronics for the Tbody, and it worked great.

 

You can run any electronic ignition with GM TBI injection if you use an MSD6 type box that has a tach filter built in. The "Tach Filter" cleans up the signal to the GM ECM. This would be a fuel only system.

Or you can buy a harness and distributor from Affordable Fuel Injection, they make EFI distributors for Mopars, AMC, IH, Ford etc..
http://www.affordable-fuel-injection.com/

 

Just a suggestion, but you can cut the upper half of a GM distributor off and weld it to a chrysler shaft. It is a very cheap solution, and would probably be your best bet, as the GM distributor is much better, IMO.

 

WOW guys! This is a old thread that showed up in my email today.

The reason I suggested using the MOPAR disy was to keep $ to a minimum. Using the none vac. and locked mech. adv distributor and adding the plate to it would allow one to mount the GM module and create a low cost install.

Distributor $ 45.00 local parts house
Alum plate $ 0.50
Outside labor tig welding labor $10.00
Terminals $ 0.50
Total $ 56.00

The few that I did are still out there both in street form and off road and have not failed yet!

 

Any links, pics, or details on converting the distributors?