confirmation ? Dakota fuel injection on a 318 ?

marko

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got 2 questions here about using late 90s Dakota fuel injection on a 70s 318 and on an 81 Imperial......

a friend had asked me about using a 98 Dakota fuel injection set up on a 72 dodge 318, i didnt know enough to answer him.

and then ive just been offered an 81 imperial that hasnt been started in 10 years - its still fuel injected.
i will be very surprised if we get it running.
ive had 2-3 carb converted 81 imps but never a fuel injected 1.

so is the dakota set up a viable thing to do on either of these cars ?
1 person has told me yes but he has never done it of course.....

just trying to get our ducks in a row in case i accept the offer of the imperial and my buddy tries to do the 72

tx

mark
 

CBODY67

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ONLY IF the complete Magnum EFI system is transplanted into the 318 vehicle. Would be better to use an Edelbrock 4bbl intake and one of the self-learning TBI EFI systems, I suspect, but that might be more money (initially) to be spent.

The Magnum EFI might yield a fatter torque curve (lower and middle rpm), but it was the head improvements which got the power increase at the top rpms, as I recall.

On some years, Dodge did use a Holley 2bbl TBI unit on the pickups, as I recall. But that would still need the support mechanisms to run it, from a donor vehicle.

An AVS2 and matching 4bbl intake might be a better deal, to me, than using an OEM EFI unit. All things considered.

As for the Imperial, check the recent threads on the Imperial's OEM EFI system in here.

Just some thoughts,
CBODY67
 

Davea Lux

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As noted by CBODY67, you will need the ECU and all of the supporting sensors and wiring harness. Next question would be if the '95 system is still functional, a rebuilt ECU starts at over $200, so the conversion could turn into a money pit pretty quickly. The Holley Sniper EFI 2300 2BBL system would be another option if you desire to have an injected system. It is self tuning so the setup is not usually difficult. Otherwise you will be time and money ahead to convert to a carb of your choice.

Dave
 

satilite73

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TBI, maybe? TPI, no? What are you gonna use for the intake manifold? Magnum manifolds have the bolts run differently than earlier LA engines. Without the factory intake, where are you going to put the factory sensors?

I'd go for something like a Sniper kit before going thru the effort to swap over a factory system. Too much effort to make it work with minimal improvement. And since the modern Hemi has come out, the aftermarket has all but forgotten about the 3.9, 5.2, 5.9 Magnums. And don't be fooled thinking stock parts are easier to source. My daily is a '93 Dakota, GREAT little truck, but I can tell you right now electrical components will be its downfall, not overall mileage. Things are getting hard to find. Mine needed an IAC (Idle Air Control Valve) last year. The ones available from the parts houses would NOT play well with the factory computer. Had to hunt for a month for a factory one finally finding one on ebay. Computers are getting to be a 'hunt for' deal too.

After the issue with the IAC on mine, I wonder how well ANY aftermarket component will work with the stock computer.
 
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Toolmanmike

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got 2 questions here about using late 90s Dakota fuel injection on a 70s 318 and on an 81 Imperial......

a friend had asked me about using a 98 Dakota fuel injection set up on a 72 dodge 318, i didnt know enough to answer him.

and then ive just been offered an 81 imperial that hasnt been started in 10 years - its still fuel injected.
i will be very surprised if we get it running.
ive had 2-3 carb converted 81 imps but never a fuel injected 1.

so is the dakota set up a viable thing to do on either of these cars ?
1 person has told me yes but he has never done it of course.....

just trying to get our ducks in a row in case i accept the offer of the imperial and my buddy tries to do the 72

tx

mark
The 90's injected 318's were Magnum engines and not LA Teens. The heads and intakes were different between the two and without major modifaciin, they will not interchange.
 

70bigblockdodge

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You would have to switch the heads also, definite hassel, just to end up with a crap intake and a overly complicated fuel and ignition system. The Imperial would be better as a 2 bbl fuel injection system. I'm not sure what you will lose on/in dash function. Or just put a carb and normal distributor on it.
Wish I could come across a '81 Imperial for cheap.
 

Toolmanmike

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You would have to switch the heads also, definite hassel, just to end up with a crap intake and a overly complicated fuel and ignition system. The Imperial would be better as a 2 bbl fuel injection system. I'm not sure what you will lose on/in dash function. Or just put a carb and normal distributor on it.
Wish I could come across a '81 Imperial for cheap.
And the Magnum rockers oil through the pushrods so you have to replace the lifters and pushrods.
 

marko

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thanks everyone for the advice, i was skeptical of what i had been told about the dakota set up being an easy swap over.
i will pass that on to my friend and if i accept the free imperial i think a carb conversion will be in order

cheers
mark
 

bigmoparjeff

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If the Imperial's existing system hasn't been ruined by the methanol in the fuel, I'd give it a shot to try to get it running. The FSM has some good diagnostics on checking over the system using a standard meter. A friend of mine bought a dead one years ago and was able to get it running again with minimal investment.

Jeff
 

marko

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with the imp i will try and get it running, its been pointed out to me that since it was used til about 10 years ago it might have alot of the gremlins solved..... we shall see. kevin mccabe has advised me that an 88 to 91 dodge ram setup will work on the imp.
my friend can make up his mind what he wants to do with his project.
thanks all
 

65sporty

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with the imp i will try and get it running, its been pointed out to me that since it was used til about 10 years ago it might have alot of the gremlins solved..... we shall see. kevin mccabe has advised me that an 88 to 91 dodge ram setup will work on the imp.
my friend can make up his mind what he wants to do with his project.
thanks all
If you try the 88-91 Ram truck TBI, I would try to find a parts truck with everything you need.
 
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