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Thread: 2000 Chevy 1500 4.3 Turbo

  1. #1
    Potential Tuner
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    Dec 2022
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    2000 Chevy 1500 4.3 Turbo

    Stock 4.3 with turbo kit not wanting to upgrade to marine manifold because I don?t want too much money invested in this build it?s all eBay turbo parts hot side was fabricated by myself wanting to do a maf tune because I don?t have speed density os options. I need some tips or some tunes to get me started because I don?t know what the hell im doing? and any other tunes I can do to get more hp out of this truck

  2. #2
    Advanced Tuner
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    Dec 2019
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    HP will be limited to fuel flow.
    Do you have a wideband?
    Also its hard to help without seeing your tune.

  3. #3
    Potential Tuner
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    here is the stock tune and no wideband at the moment
    Attached Files Attached Files

  4. #4
    Tuning Addict 5FDP's Avatar
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    May 2012
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    Major bummer that it's a vortec computer and not a P01 controller, so much more you can do with the newer computer.

    What are you doing for fueling?
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  5. #5
    Potential Tuner
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    Dec 2022
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    Stock injectors installing a quantum fuel pump would have to change intake for new injectors and not doing that right now so I need to tune my maf instead of speed density what’s the best route