Anybody use GM LS computer/ coil by plug set up on 5.9 magnum???

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mopar65

mopar65

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Well I hope I don't get 60 lashing for asking that. Lol first this is just a What if question. I am getting ready to put a magnum 360 with the factory fuel injection in my dart sport. I am going to wire it up my self. Well after seeing a 360 with coil by plug set up on it, well it got me to thinking. I know scary ain't it. Lol but I was wondering if anybody on here has done it? I think being go the parts would be cheep and I figured the LS computer would be easer to tune for boost etc. I just don't know if the LS computer would run my 46RE trans? So I would need is the LS computer, coils and wiring harness. Ok guys this is just a question so don't get the pitch forks out just yet
 
You have sparked my curiosity, I have a couple worker who does chebby ls swaps.... I will inquire with him about it
 
Marcohotrod said:
a few years ago Ehrenberg did something similar on a 440 in moparaction mag
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The reasion I asked was because a few years ago a guy in moparts was talking about maybe trying to come out with a kit, but it was for a big block. But so far I haven't been able to find it. I think it was around 5 years agi
 
lots of people DIY Ford EEC-IV ECU's as they are crude, sort of self tune and can do boost off the bat. Go for it. If you have the pinouts, connect the dots but make sure the Mopar sensors are compatible
esqford5827A.jpg
 
I gave this route (and the Ford EEC-IV) a lot of thought 2 years ago when I was going to fuel injection. In the end, I ended up going with Holley's Terminator system. The cost justification just wasn't there with a homegrown setup based on a GM 411 PCM. Cost justification is even further away now with the Holley Sniper or FiTech's offerings. Turn-key fuel injection is getting cheap(er).

In my opinion, adapting a GM system was a great idea five years ago, but I don't see the advantage anymore. My Terminator system is 100% point and click with full factory support. I can go from a factory Mopar distributor ignition to 8-pin HEI to a 36-1 crank trigger all in one weekend if I want to.

A few threads for your viewing pleasure:
converting a Chrysler 383 big block to GM injection
Tuning options for Dodge Mopar
Fuel injection kit - FORD MAF - any small block mopar
EECTuning.org • View topic - Adapting EEC-IV to Mopar 5.9l
 
wish4hemi said:
I gave this route (and the Ford EEC-IV) a lot of thought 2 years ago when I was going to fuel injection. In the end, I ended up going with Holley's Terminator system. The cost justification just wasn't there with a homegrown setup based on a GM 411 PCM. Cost justification is even further away now with the Holley Sniper or FiTech's offerings. Turn-key fuel injection is getting cheap(er).

In my opinion, adapting a GM system was a great idea five years ago, but I don't see the advantage anymore. My Terminator system is 100% point and click with full factory support. I can go from a factory Mopar distributor ignition to 8-pin HEI to a 36-1 crank trigger all in one weekend if I want to.

A few threads for your viewing pleasure:
converting a Chrysler 383 big block to GM injection
Tuning options for Dodge Mopar
Fuel injection kit - FORD MAF - any small block mopar
EECTuning.org • View topic - Adapting EEC-IV to Mopar 5.9l
Click to expand...

Hey thanks for the great info. But a lot of stuff has improved in the last few years. Guys are useing the cam sensor out of a 4.0 jeep and machining a adapter to take up the highth difference. They are useing are useing them with small block and big block mopar engine. Just found out that I will need a 58 tooth tone well for the crank wheel. I was just going to use all junk yard LS parts for the swap. But not sure how much money I would have involved in it. I think the biggest hurdle would be getting the GM pcm to play nice with the dodge transmission.i allready have all the factory 5.9 injection stuff. So I am probably just going to use it this year and maybe switch to the LS stuff next year when I do the turbo
 
great links! Im building an EDIS-6 for my slant right now, but will be using a Mopar-6 coil pack instead for better wire management.

Do those 4.0 cam sensors drop in? I see the LA looking tang and gear, do you just need a collar? Sequential EFI is not a huge deal on my app. was thinking on just using a E-distributor and grinding 5 reluctor vanes off.
 
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pishta said:
great links! Im building an EDIS-6 for my slant right now, but will be using a Mopar-6 coil pack instead for better wire management.

Do those 4.0 cam sensors drop in? I see the LA looking tang and gear, do you just need a collar? Sequential EFI is not a huge deal on my app. was thinking on just using a E-distributor and grinding 5 reluctor vanes off.
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Yes they pretty much just drop right in. But you have to get a spacer. I think SD comsepts makes one and some one Elese
 
mopar65 said:
Yes they pretty much just drop right in. But you have to get a spacer. I think SD comsepts makes one and some one Elese
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You'll need a bushing to fit over the Jeep cam sensor. It's a smaller diameter and I don't believe it has a provision for an O-ring as a regular distributor does.

Also, the reluctor wheel depends on what year LSx computer you get. The earlier versions used a 24x. I think 2006 was the change to 58x. I can make either one to press fit over a factory Magnum crank pulley, if needed.

Furthering the confusion, some of the newer models also used a 4x cam signal instead of the conventional 1x. And some are drive-by-wire while others are drive-by-cable. Plenty of variables to go around.
 
pishta said:
great links! Im building an EDIS-6 for my slant right now, but will be using a Mopar-6 coil pack instead for better wire management.

Do those 4.0 cam sensors drop in? I see the LA looking tang and gear, do you just need a collar? Sequential EFI is not a huge deal on my app. was thinking on just using a E-distributor and grinding 5 reluctor vanes off.
Click to expand...

I finally found the cam sensor adapter.also looks like they are also making the crank triggers now.

SD Concepts
 
wish4hemi said:
You'll need a bushing to fit over the Jeep cam sensor. It's a smaller diameter and I don't believe it has a provision for an O-ring as a regular distributor does.

Also, the reluctor wheel depends on what year LSx computer you get. The earlier versions used a 24x. I think 2006 was the change to 58x. I can make either one to press fit over a factory Magnum crank pulley, if needed.

Furthering the confusion, some of the newer models also used a 4x cam signal instead of the conventional 1x. And some are drive-by-wire while others are drive-by-cable. Plenty of variables to go around.
Click to expand...
Good to know about the diffrent year gm computers.I was going to look for a late 90 trans am etc. What about a truck? Figured they would be easier to find?
 
wish4hemi said:
More reference material:
What's the benefit of the 12200411 PCM?
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well i think i have found all the info i would need to do the GM LS computer etc. i even found a company that is so-posed to be able to tune the LS computer to work on the mopar 5.9. I have had time to right down everything i would need to do the install and there cost yet. might do that this weekend. but here is a pick that got me to thinking about if it was possible to run the LS computer on a mopar engine. this is a mopar engine with gm LS coils and injectors a guy on face book has for sell. i think he is using a mega-squirt computer though.
 
mopar65 said:
this is a mopar engine with gm LS coils and injectors a guy on face book has for sell. i think he is using a mega-squirt computer though.
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That is a fine setup, but much different from what you originally proposed. Running LS coils is a great idea, but they definitely don't have to be driven by a GM controller. Most of the aftermarket EFI systems have coil outputs to directly drive "smart" coils or indirectly drive "dumb" coils via an intermediate coil driver.

Driving the coils with MegaSquirt would lend itself to much more flexibility down the road. You'd be able to run any ignition system (distributor,multi-coil waste spark,individual coil-on-plug) and have a wide array of compatible input sensors (O2, coolant, IAC, etc) available.
 
wish4hemi said:
That is a fine setup, but much different from what you originally proposed. Running LS coils is a great idea, but they definitely don't have to be driven by a GM controller. Most of the aftermarket EFI systems have coil outputs to directly drive "smart" coils or indirectly drive "dumb" coils via an intermediate coil driver.

Driving the coils with MegaSquirt would lend itself to much more flexibility down the road. You'd be able to run any ignition system (distributor,multi-coil waste spark,individual coil-on-plug) and have a wide array of compatible input sensors (O2, coolant, IAC, etc) available.
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You have some very good points. My post was just to see if anybody has done it. Also I was trying to see if it could be done with all stock parts. To maybe help keep the cost down? I might look into it again next yer when I start my turbo build. But everybody keep the questions and info coming.
 
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