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Thread: gt3076 tuning issues

  1. #1
    Potential Tuner
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    gt3076 tuning issues

    Having some tuning issues with my new turbo setup. Its a gt3076r, zzp's manifold, full boltons. Would anyone happen to have a good starting point for the tune. I had no problem tuning on the stock turbo, this thing is just kickin my ass. Not wanting to just flash someone elses hard work, just wanting something for a comparison.

  2. #2
    Senior Tuner cobaltssoverbooster's Avatar
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    members can only help if you have these posted to share:
    1)year, model, engine (size or designation code)
    2)list of mods (you got that)
    3)hpt editor tune file (the one you are currently running)
    4)if it runs a hpt scanner log with a small blend of idle, cruise, and some wot (if you only get a small one its at least something members can scan for sensor output irregularities)
    2000 Ford Mustang - Top Sportsman

  3. #3
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    Had all intentions on loading that shortly after the post. I figured out the issue. The factory wideband is junked. It was not throwing a code, but it was basically sensing stupid lean instead of the actual AFR, so it dumped fuel to compensate. If thinking is correct that would explain the erratic fuel trims even after scaling the maf.

  4. #4
    Senior Tuner cobaltssoverbooster's Avatar
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    Good to hear!

  5. #5
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    Yeah now I just need to upgrade to HP tuners pro so I can get my standalone wideband setup and get this thing dialed in.
    2009 Chevy cobalt ss
    Wiseco pistons
    Gt3076
    Zzp turbo manifold. Aem water meth
    Custom downpipe( for now)
    38mm external gate
    Greddy bov
    Injen hot side piping. Custom intake
    Tr6 intercooler. Tuning on HP tuners

  6. #6
    Advanced Tuner laser_racer's Avatar
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    You do know the lnf has a factory wideband already right?

  7. #7
    Tuner in Training
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    Third post "factory wideband is junked." I had the same issue on my 07 sky, wideband died no code just crazy fuel dumping, took me a little while to figure it out.

  8. #8
    Senior Tuner cobaltssoverbooster's Avatar
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    If u don't replace the factory you will get absolutely nowhere on lnf/ldk series, are you trying to tune around a failed one with the am one?
    2000 Ford Mustang - Top Sportsman

  9. #9
    Quote Originally Posted by 1nastycobalt View Post
    Yeah now I just need to upgrade to HP tuners pro so I can get my standalone wideband setup and get this thing dialed in.
    You don't need pro to input a wideband signal.
    09 Cobalt SS - E47+EFR6758 =

    07 Silverado ECSB LBZ Duramax - Bunches of goodies