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Thread: Turbo 5.3 tune review

  1. #1
    New Member
    Join Date
    Sep 2021

    Default Turbo 5.3 tune review

    Hi Everyone. I am new to tuning and this is the first tune I have ever worked on, so I am looking to see if I am on the correct path. The truck I am tuning is a 2000 Chevy silverado 1500 rcsb with a 4L80, on3 70mm turbo kit, BTR turbo cam stage 1 (222/227 with a 113LSA), Deatschwerks 72lb injectors, and EFI source 3 bar map sensor. The truck makes 14psi on the wastegate spring and boost controller turned all the way down (the rings gaps have been opened up).

    My tune and a WOT log are attached. Let me know your thoughts and thank you in advance for your time!

    ****reminder - this is the first thing I have ever tuned. Use any information from my tune at your own risk.****
    Attached Files Attached Files

  2. #2
    Lifetime Member
    Join Date
    Mar 2006


    Re upload your datalog. It has a .XLS extension on it and wont allow to open with EFI even after changing it to .EFI.
    Quick look over your tune and it does need some work but need to see datalog first.

  3. #3
    New Member
    Join Date
    Sep 2021


    Here is the .EFI file. Since this log, I have cleaned up some of the off boost fueling and have not been able to repeat the knock shown in the log.
    Attached Files Attached Files

  4. #4
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003


    I'll take a look at your log...

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