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Thread: Tuning for Larger Fuel Injectors

  1. #1
    Tuner
    Join Date
    May 2008
    Location
    Texas
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    119

    Tuning for Larger Fuel Injectors

    Assume all other variables remain the same, only larger fuel injectors
    have been installed. Does anyone have a before/after tune? I will be
    going with a MPFI setup in my S10 and will need to adjust the tune for
    only a fuel injector size change. If someone has a decent before/after
    I'm interested in reverse engineering so I can learn what I'm looking for.
    (I'm my case I'm going from 23# to 60# MotoTrons on a 4.3 S10.)

    Also, what should I scan for post-swap so that I can tweak the tune?

    I'm asking in here because I'm not getting an answer in the V6 group.

    Thanks!

  2. #2
    Tuner
    Join Date
    May 2008
    Location
    Texas
    Posts
    119
    No love, huh?

  3. #3
    Advanced Tuner
    Join Date
    May 2007
    Posts
    307
    so you are a stock vehicle running 60# injectors?

  4. #4
    Tuner
    Join Date
    May 2008
    Location
    Texas
    Posts
    119
    Quote Originally Posted by Texsrt4
    so you are a stock vehicle running 60# injectors?
    For now, yes. I'm swapping intakes so I can get a MPFI setup
    with larger injectors. (Once that's done, I'm installing a turbo.)
    But I want to figure out what I need to adjust in order to just
    run the larger injectors, in an otherwise stock truck.

    I sometimes learn better by reverse engineering, so that's why
    I'm curious to see a before/after tune, so I can see where I'm
    going to need to start and what better questions to ask.