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Thread: tuning genI motor

  1. #1
    Advanced Tuner jakebdb56's Avatar
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    tuning genI motor

    for anyone that doesn't know what my setup is for the dune buggy, it's a genI sbc with stock large valve body heads and a good size cam (234/234 .5xx/.5xx). brand new rebuild with a 9.0'ish CR.
    anyways, i've been fabricating a custom EFI ls-based system for it and i've come to the point now where I really need some help. I have no idea what kind of tune file I should start off with? maybe a 6.0 since it has a little more fueling? everything will function just like a ls1, except the motor at heart is the sbc350. I have all sensors and I do have a wideband and will upgrade to the pro interface before I start tuning (so I can log wb easily).
    the firing order issue was sorted out by just editing it within hptuners, so no worries there. also, we've engineered a way to fit the reluctor ring and cam ring on the motor and have the sensors work properly
    the pcm is a 2000 truck pcm and same for the harness. dunno what OS is on it right now. any help/suggestions would be great.
    '20 AT4
    '01 Suburban 2500 Dad Wagon

  2. #2
    Senior Tuner Russ K's Avatar
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    I have a hpt file from a 2002 GMC Savana 5.7 (R) that might be of interest. Let me know, as I'm at
    work right now.

    Russ Kemp

  3. #3
    Advanced Tuner jakebdb56's Avatar
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    that sounds awesome. thanks russ
    you always save my ass somehow lol

    jake
    '20 AT4
    '01 Suburban 2500 Dad Wagon

  4. #4
    Senior Tuner Russ K's Avatar
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    Here you go, these vans use the Vortec 5.7 engine. You might want to use a pcm from the full size van as it is fully supported by Hp Tuners.

    Russ Kemp

  5. #5
    Advanced Tuner jakebdb56's Avatar
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    I already have a pcm/harness from a 2000 truck. pretty popular pcm so I'm gonna stick with that. I wonder if I could flash this file on that pcm? i'll check it out. thanks russ,

    jake
    '20 AT4
    '01 Suburban 2500 Dad Wagon

  6. #6
    Advanced Tuner jakebdb56's Avatar
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    os is different. I'll try it anyways. if not. I'll just copy over some fueling tables, that'll do.


    jake
    '20 AT4
    '01 Suburban 2500 Dad Wagon