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Thread: Can I use my Bigport loom on a Smallport?

  1. #1
    Senior Member jet111's Avatar
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    Default Can I use my Bigport loom on a Smallport?


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    Ok so I dumped the idea of a 20v because I cant afford it right now. Instead I am swapping my Bigport for a Smallport, old engine is now out. I just need to find out a couple of things before I get a new one and it goes in.

    Can I use my existing loom with the Smallport? What are the differences?

    Can I use all my Bigport components on the Smallport, things like leads, starter motor, dizzy, alternator and flywheel?

    I currently have a 7rib JDM 16v. It will be replaced with a ADM 100Kw Smallport 16v.

    Thanks again.

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    Senior Member Sprinter86's Avatar
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    all the plugs are different, and i wouldnt think that the bigport ecu would be able to run the smallport engine as well as a smallport ecu would(change in head design, higher compression etc.)

    Bottom line, dont bother. you would do much better selling your jdm engine loom, and purchase a smallport loom.

    i have a FWD smallport loom and ecu if you interested btw.

  • #3
    Senior Member jet111's Avatar
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    Quote Originally Posted by Sprinter86 View Post
    all the plugs are different, and i wouldnt think that the bigport ecu would be able to run the smallport engine as well as a smallport ecu would(change in head design, higher compression etc.)

    Bottom line, dont bother. you would do much better selling your jdm engine loom, and purchase a smallport loom.

    i have a FWD smallport loom and ecu if you interested btw.
    I will be running a Smallport ECU, was just hoping that it would plug into the Bigport wiring loom... If its not possible I'll be talking to you shortly. Would be nice if I didnt have to stuff around with a new loom though.

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    Elite rthy's Avatar
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    i have a bigport loom (with bigport jdm ecu) with a smallport motor
    works good enough, tvis plug not used and pretty much all bigport acc like dizzy, injectors, etc...

    setup by toyospares...
    30kw club

  • #5
    Senior Member Sprinter86's Avatar
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    well there ya go, more doable than i first thought!

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    Senior Member jet111's Avatar
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    Ok so the Bigport loom hooks up to the Smallport motor.

    But does the Smallport ECU hook up to the Bigport loom? Please say yes

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    Elite rthy's Avatar
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    no
    the bigport ecu does quite well, altho in future i would probly change back to bigport
    30kw club

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    Senior Member jet111's Avatar
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    Why would you change back?

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    rebuilding bigport 4age
    30kw club

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