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EFI for an AMC V8

trust

trust

PITA
City
White Rock
State
NM
What EFI options are yall using for an AMC V8 swap? Positive or negative experiences? Is there still an MPI option available or are we limited to TBI systems only? And finally, what sort of highway performance and mileage are yall getting?

Thanks
 
I've got the Howell on my 360. It's been good, not a performance setup, but runs well.
 
thanks guys, that Edlebrock is way out of my price range too, twice what the rebuilt 360 would be! but way under a 5.3L chevy swap

What kind of mileage are you seeing John? Happy with the performance?
 
I have an older ProJection 4Di. I like it, but it's old tech and wasn't for everyone even when new.
 
I got my setup from the guys at Affordable Fuel Injection like 12 years ago... not sure if they still do it or not, but the fuel injection part is great, getting it to run perfect is always chasing down little things. Starts up every time, but I was always tweaking on it as I added different parts like headers, then had the engine bored out .030 over... had to constantly tweak as the original specs weren't just quite right... it still isn't perfect, but close.

cb
 
trust said:
thanks guys, that Edlebrock is way out of my price range too, twice what the rebuilt 360 would be! but way under a 5.3L chevy swap

What kind of mileage are you seeing John? Happy with the performance?
Click to expand...
Performance has been reasonable and reliable. I have no clue on mileage, I never check it, but I'd guess in the 11-12 mpg area.
 
Thanks Gents, Did you ever actually go forward with the AMC set up Sunshine? Which ECU did you use with it if you did? I doubt its doable for me anyway, i think my best course is still to just sell it and forget about it but I would like to exhaust my various options before I cut the price to much more just to unload it

thanks guys
 
I've finished a few of them over the years and they work well. It all depends on the programming more than anything else. If the fueling and especially timing are not correct, then you lose out on driveability and performance. With the link I shared, the reality of the changes I made, the most gain was with getting into tears calibration with the aftermarket ecu and not relying on what Howell calibrated their chip.

Sent from my SM-G920V
 
Thanks, which ECU and such did you end up with, I didnt catch it in the links? Do you have to program each ECU manually via a laptop or can the ECU self learn? I guess I should ask about cost to get going with your set up and whether or not any are left of if they have to be built up for each application

Thanks,
 
I've run quite a few different ecu's. At this point I'd choose the Holley as the controller since they have good support. They do have a self learn function but you really can not rely on that 100%. The self learn works good for auto transmissions but has issues with manuals. I program all of them myself on the dyno. It's nearly impossible to get the correct timing for your specific engine combination without using a dyno.

Sent from my SM-G920V
 
ahh good to know, thanks Sunshine, its sounding like its probably a bigger bang for the buck to go new Chevy eng/trans combo than try and duplicate that arrangement with an AMC and my current trans... A v8 would have been nice....
 
It would probably be cheaper to put a 5.3l and 4L60E in instead of injecting the AMC motor. You'll get better mileage, performance, and reliability too.
 
Thats one of the reasons I'm doing my 5.3/4L60E swap now. I hope to find a full chassis dyno when its finished. It should be making about 350 HP at the crank when I'm done.
 

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mysunnshine said:
It would probably be cheaper to put a 5.3l and 4L60E in instead of injecting the AMC motor. You'll get better mileage, performance, and reliability too.
Click to expand...

Thats what Ive come to as well, now its just a function of finding the money to do that swap I guess....

Thanks for all the answers to my lame questions, I always learn something

good luckwith your swap ZR
 
I have a wicked AMC 360 out of an AMX in my 7. I will never build another AMC V-8 for that reason. FI for an AMC is crazy money (Edelbrock) or mediocre (TBI) GM is the only way to go. I tried to talk the bull tear guys into making an aluminum intake that would allow the old GM tuned port injection to be bolted to a AMC. They feared the cost vs profit margin. I figured if the intake could be bought for $500 or less, one could easily TPI an AMC for under $1000. TPI is not great but is decent.
 
LS engine swap is 6k for 5.3l If you were really thrifty you might be able to get it done for 5k. If I was going to spend 4K to have the pro flo installed on an AMC V8 and I didn't care about engine brand I would spend the extra 1-2k and put a 5.3 in.

I thought the Howell kit made the AMC V8 feel snappier. More responsive.
 
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