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Thread: 305 tpi with 7427 pcm Possible?

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  1. #1
    Fuel Injected! Aholt91ss's Avatar
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    305 tpi with 7427 pcm Possible?

    I have an 85 Camaro with a bad 6870 ecm and want to know if any body has run tpi with a 7427 pcm or if possible to run one
    i have a spare 7427 pcm

  2. #2
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    if MPFI mods were done to the 7427, i don't see any reason why not. i'm sure it's been done before as well.
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  3. #3
    Fuel Injected! Aholt91ss's Avatar
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    would you know what sorts of mods?

    my understanding 6870 has one injector driver whereas the 7427 has 2 but resistance of injectors would proabably be different
    Last edited by Aholt91ss; 06-16-2013 at 05:09 AM.

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    RIP EagleMark's Avatar
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    There's a couple resisters in PCM that need a solid jumper for 8 injectors. The Memcal mod with a wire when you read docs is not needed. Take a look in this thread for links to wiring and a Zip file with all that needs to be done to convert 97427 TBI to MPFI:
    http://www.gearhead-efi.com/Fuel-Inj...Information-OD

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  5. #5
    Super Moderator dave w's Avatar
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    Quote Originally Posted by EagleMark View Post
    There's a couple resisters in PCM that need a solid jumper for 8 injectors. The Memcal mod with a wire when you read docs is not needed. Take a look in this thread for links to wiring and a Zip file with all that needs to be done to convert 97427 TBI to MPFI:
    http://www.gearhead-efi.com/Fuel-Inj...Information-OD
    Mark,
    The Memcal modification show in the attached pic is NOT needed for MPFI?

    dave w
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    RIP EagleMark's Avatar
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    That's what I said but I guess it did not come out well?

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