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chevy 350 twin turbo Fitech EFI tuning issues Help !!!

Discussion in 'EFI Tuning Questions and Engine Management' started by Kardell Delcambre, May 9, 2017.

  1. Kardell Delcambre

    Joined:
    May 9, 2017
    I have a small block 350 with twin turbos and having trouble tuning fitech efi. Engine backfires at 4500-5000 what should I do. I'm new to the turbo thing.
     
    Kardell Delcambre, May 9, 2017
    #1

  2. Mnlx

    Joined:
    Sep 20, 2009
    What does your wideband read when it happens? What does your ign curve look like? Only pop while in boost, or anytime above 4500?
     
    Mnlx, May 9, 2017
    #2

  3. joeleodee

    Joined:
    Aug 10, 2016
    If you can get datalogs of the issue as it happens, that's a start.
     
    joeleodee, May 10, 2017
    #3

  4. malibuguy

    Joined:
    Aug 23, 2006
    Valvesprings?
     
    malibuguy, May 10, 2017
    #4
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