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Thread: advice on tbi setup..

  1. #1
    Fuel Injected!
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    advice on tbi setup..

    hey guys,,,
    wondering if someone can give me some advice on tbi tuning chip wise for a 1992 firebird,
    the car was a 305 tbi setup--- I was going to change it to tpi because I have a complete set up off an 1989...
    then I changed my mind to save the tpi for another build---

    here's the basics--

    I have moates equipment and have used it to tune my 377 stroker with tpi--
    it runs great and is consistant--- it took a bit to get used to it-- but overall I am comfortable with the chip programing and basics----

    can I take a worked up 355 with good heads and 280's or so cam and get the stock tbi to flow/work good for it ???
    I'm needing to be around 5500 rpms 6000 max-----

    with this being a different ecm-- is there a zif socket for this style chip???? or whats the best way to work with it ???

    any advice is much appreciated ,,, thanks- steve

  2. #2
    Super Moderator dave w's Avatar
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    Have you looked at the TBI update thread at Thridgen.org?

    https://www.thirdgen.org/forums/diy-...-its-time.html

    dave w

  3. #3
    Fuel Injected!
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    going to look into it--- thanx,,, seems I need to start rounding up more parts too !!!! rock-on !!!

  4. #4
    Super Moderator dave w's Avatar
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    If you decide to update the computer, include a Wide Band Oxygen Sensor (WBO2) in your parts list. More information on WBO2 tuning: http://www.gearhead-efi.com/Fuel-Inj...g)-Spreadsheet

    dave w

  5. #5
    Fuel Injected!
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    Basically, the TBI would work but you will need to make changes to support the fuel required and you might want to change to a larger bore TBI to get more airflow.

  6. #6
    Fuel Injected!
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    is it still common to work with the 454 tbi ??? sadly this unit is on a shoe string budget !!!!

  7. #7
    Super Moderator dave w's Avatar
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    Quote Originally Posted by bdads View Post
    is it still common to work with the 454 tbi ??? sadly this unit is on a shoe string budget !!!!
    One of the EFI Rules:
    The more you know about EFI, the less you Pay for EFI.

    Another EFI Rule:
    The more you know about EFI, the better you can GOOOOOOOO with EFI.

    Sure a 454 TBI can work, if you do your homework.

    dave w

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