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Thread: min pulse width for SVO injectors?

  1. #1
    Tuner
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    min pulse width for SVO injectors?

    so what is it? I have looked all over but can't seem to come up with it anywhere. ???
    2004 C5 Coupe - MM6

  2. #2
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    Re: min pulse width for SVO injectors?

    what size?

    Ryan
    1998 Ws6 TA

  3. #3
    Senior Tuner S2H's Avatar
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    Re: min pulse width for SVO injectors?

    you really wont need to change the minimum pulse width...its already wayyyy down there..
    you probably need to check your IFR table...

    use this worksheet to calculat for new size injectors...
    you need to know if its 3 bar or 4 bar...or if they are rated 30# at 40psi or 30#at 43.5 psi...

    www.audiohelix.com/hptuners/injectors.xls
    -Scott -

  4. #4
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    I´m running rich at decel (dfco off) with my #42, how much should i lower min inj pulse?
    Black Pontiac Trans Am WS.7- Runs on E85

    And soon to be powered by Twin Turbos.

    How to run your LS1 on E85

  5. #5
    Tuning Addict WS6FirebirdTA00's Avatar
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    I run rich as well, and if I get it to lean out, I get lean spike in and out of the throttle, so I left it rich lol
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  6. #6
    Супер Модератор EC_Tune's Avatar
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    May want to tickle the 80 Kpa line in the Injector Offset table if you're too rich on decel. Drop it by 10% to start.

    HTH
    EC
    Always Support Our Troops!

  7. #7
    Tuning Addict WS6FirebirdTA00's Avatar
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    I did that on mine, didnt do much really, only thing that worked was the min fuel adjust under transient fuel. I can lower that but then I get lean spikes when I go in and out of hte throttle.
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  8. #8
    Advanced Tuner
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    Quote Originally Posted by WS6FirebirdTA00
    I did that on mine, didnt do much really, only thing that worked was the min fuel adjust under transient fuel. I can lower that but then I get lean spikes when I go in and out of hte throttle.
    The 98´s transient fuel is 0.000 from factory.
    Black Pontiac Trans Am WS.7- Runs on E85

    And soon to be powered by Twin Turbos.

    How to run your LS1 on E85