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  1. #1
    Carb and Points!
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    Mar 2024
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    I think I finally made it?

    Soooo, it's been quite an adventure trying to get approved here.
    I think I'm approved.
    My needs right now are to get as much info and support as possible for my EFI conversion.
    1997 Jeep CJ5 with an AMC 258.
    I rebuilt my engine forever ago, bored .030 over, new pistons, ground crank .010 under, new bearings, Comp Cams 252H, Clifford intake, Hedman headers, all 2-1/4" exhaust with Flomaster series 40 muffler, HEI distibutor, electric fan and a Weber 38DGAS.

    The engine runs well, but has a hard time starting after sitting for a few days.
    I four wheel on big rocks sometimes, and the steeper angle stuff really messes up my Weber.

    So I'm planning to switch to EFI, specifically, a GM TBI.
    Since it took me so long to get approved here, I abandoned my original plan of sourcing all parts myself.
    I just ordered a TBI kit from Affordable Fuel Injection folks, essentially all the same stuff that I planned to buy anyway.

    More than likely, I'll need to alter the program that AFI supplies, since my engine deviates from stock.
    Hopefully, I can learn enough from the gurus here so I can limp through this without too much suffering.

    As for a further introduction, I am a cofounder of an extremely advanced R & D company, Mohawk Innovative Technology, Inc.
    I initially served a 4 year apprenticeship as a toolmaker, and worked in research for over 40 years.
    I'm a design engineer at MITI, with experience in high speed rotating equipment, rotordynamic analysis, machine design, static and dynamis vibration analysis, as well as all phases of data acquisition and data reduction.
    I'm mostly retired now, and rebuild wrecked cars, motorcycles, and motorhomes for fun and profit.

    Oh, and I build canoes, lots and lots of cedar strip canoes, hence the stripperguy name.
    Thanks i advance for letting me pick your collective brains,
    Mike T.

  2. #2
    Super Moderator dave w's Avatar
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    Feb 2011
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    Likely the AFI TBI system uses 1227747 ECM.

    Gearhead-EFI link for 1227747 information http://www.gearhead-efi.com/Fuel-Inj...Information-42

  3. #3
    Carb and Points!
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    Mar 2024
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    dave,
    Thanks for the link...yes, that's the same ECM that AFI uses.

    Dunno if there's a minimum number of posts before I can post pics, but here goes.
    Here's the aforementioned CJ5, I've had it since 1995, did all of the work myself.




    And here's a pic of some of my canoes, all were built by me

    Attached Images Attached Images

  4. #4
    LT1 specialist steveo's Avatar
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    don't miss the boat putting modern stuff on your ancient engine

    it's a lot of tedious work doing any EFI conversion and TBI is pretty weak tech

    i see you've bought some cool stuff that you want to keep but if you are into fabrication/engineering (which is a weak spot for me) i would be building a custom rail and putting injectors right in that clifford intake, and using sequential injection

    although i guess your goals are in alignment with TBI if you just want the easy-ish road, a jeep with a tbi slapped on it isn't that special, something with a totally unique injection system is

  5. #5
    Fuel Injected! ralmo94's Avatar
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    Nice looking jeep, and nice canoe's.

    While port would be an advancement, I see no real world advantage over TBI, as long as it suits your rpm and cfm requirements, but a modded Clifford intake would be pretty awesome. That's my $0.02.
    Welcome to the forum.
    No need to re-invent the wheel. But we can make it better

  6. #6
    Fuel Injected! MO LS Noobie's Avatar
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    Them are sweet looking canoes. I wonder how they would hold the to the Ozarks Rivers? Regarding the Jeep, the TBI would definitely be easier and would get you about 80% of the advantages of a sequential port set up, especially the rough terrain and steep inclines. I had a 401 in my grand Wagoneer I converted to the old Holly DFI four barrel set up just because of that. Welcome to the forum, there are many people here for help and advice.

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