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New EFI Option - Looks Like 3 Good Players Now

Discussion in 'Early CJ-5 and CJ-6 Tech' started by Warloch, Nov 8, 2017.

  1. Nov 8, 2017
    Warloch

    Warloch Did you say Flattie??? Staff Member Sponsor

    Falcon, CO
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    Posimoto, Mcruff, 47v6 and 3 others like this.
  2. Nov 9, 2017
    47v6

    47v6 junk wrecker! Sponsor

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    When a Holley carb is running 500 bucks or so, this doesn't look like too bad of a deal if it works with the odd fire.
     
  3. Nov 9, 2017
    jeepstar

    jeepstar Sponsor Sponsor

    Sheboygan
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    but will it work on an Fhead?:rolleyes:

    someday perhaps...
     
  4. Nov 9, 2017
    colojeepguy

    colojeepguy Colorado Springs Sponsor 2019 Sponsor

    At the foot of...
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    Hey Chuck, how about you try one on your Jeep & let us know how it works? :D
    The only downside I noticed was the fuel pump not being included...that would probably put you up to a grand or so...
     
  5. Nov 9, 2017
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

    Tantallon, Nova...
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    There are single injector TBI's out there- motorcycles use them as apparently did Suzuki GMl & Fiat. Not gonna say they're bolt on's but they are available.
     
    Last edited: Nov 9, 2017
    Thean likes this.
  6. Nov 9, 2017
    FinoCJ

    FinoCJ 1970 CJ5 Staff Member Sponsor

    Denver, CO
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    Agreed - the FiTech is about a grand or 1100 with the commander fuel supply system which seems pretty functional. Can probably combine the FiTech commander with the Summit Racing for a nice set-up. Good to have options and competition for us buyers.
     
  7. Nov 9, 2017
    FinoCJ

    FinoCJ 1970 CJ5 Staff Member Sponsor

    Denver, CO
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    One question - because I am to lazy to look it up in our documented EFI threads - can any of these systems be run with the stock manifold - or must the manifold be converted to a 4 barrel compatible manifold?
     
  8. Nov 9, 2017
    Daryl

    Daryl Sponsor Sponsor

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    fctex likes this.
  9. Nov 9, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
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    These are all TBI style systems meant to run on wet "carb" intakes. Everyone I've seen is a 4BBL pattern.
     
  10. Nov 9, 2017
    termin8ed

    termin8ed I didn't do it Staff Member Sponsor

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    Same here. You could probably adapt it to a 2 bbl but doubt it would work good.
    One of these days ill get around to my megasquirt setup. That can use the stock 2bbl.

    Good to have a few more options though. Would be nice if they offered a 2bbl version at some point
     
  11. Nov 11, 2017
    Warloch

    Warloch Did you say Flattie??? Staff Member Sponsor

    Falcon, CO
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    We'll see which one the neighbor picks this winter. He wants me to help him install it after the motor rebuild so I may be able to answer the question...

    I don't have any spare running rigs right now as I'm spending too much time fixing the wife's Furd - it may be a '66 Mustang, but is still a FURD in my book.
     
  12. Nov 11, 2017
    Warloch

    Warloch Did you say Flattie??? Staff Member Sponsor

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  13. Nov 11, 2017
    Daryl

    Daryl Sponsor Sponsor

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    I just built a Buick 252 v6. It is going in the 3b. Just thinking EFI because this Jeep won't be sold so money doesn't really matter on this one.
     
    Posimoto likes this.
  14. Nov 11, 2017
    Jeepenstein

    Jeepenstein Me like Jeep.. Sponsor

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    Pun intended?? haha
     
  15. Nov 11, 2017
    timgr

    timgr Jeepin' Nerd Sponsor 2019 Sponsor

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    I translate that meaning their system requires an even tach signal. I'd think you could use a toothed wheel, or just divide the tach signal in half and tune as if you were running at half the RPM.
     
  16. Nov 13, 2017
    Warloch

    Warloch Did you say Flattie??? Staff Member Sponsor

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    I might agree with you Tim, but the units are 'self tuning' and therefore dependent on a correct signal. What I find baffling is that so many others 'don't care' - just use the generic HEI filter they supply and it all works. Its RPM, so if it's off a couple ticks per min shouldn't matter too much. I really don't think their input is so tight since none control timing to begin with.
     
  17. Nov 14, 2017
    timgr

    timgr Jeepin' Nerd Sponsor 2019 Sponsor

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    Yeah, I see your point. If they are designing a system from scratch, they could easily program a mode that averages over a small number of triggers. IIRC that's how Megasquirt handles a odd-fire tach signal. And I believe Megasquirt handles this all in software. This has to be trivial compared to whatever learning mode they built-in.
     
  18. Nov 28, 2017
    mbjeeper

    mbjeeper New Member

    Moundsville, WV
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    I put a Holley Sniper system on a '70 Chevelle with a 454. The customer opted for the Holley fuel tank. I didn't use the flex line, plumbed it all in stainless with AN braided stainless short flex at the tank and EFI. Same with the return line.
    Worked great, easy to install. My Buick is an even fire, so I am thinking of going this way on my DJ/CJ build. I can't speak to the durability of the unit, but I was pretty impressed.
     
  19. Apr 15, 2019
    Jrobz23

    Jrobz23 Member

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  20. Apr 15, 2019
    cj6/442

    cj6/442 Sponsor Sponsor

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    I just ran into a guy that bought a Howell system intended for use on a 225 …. I was shocked I talked with Howell a few yrs ago and they told me no way not enough interest the guy paid around $1300
     

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