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Thread: 2004 5.3 DBW SS2 Cam Short Headers on Engine Stand - Looking for a review of new tune

  1. #1
    Tuner in Training
    Join Date
    Oct 2017
    Posts
    11

    2004 5.3 DBW SS2 Cam Short Headers on Engine Stand - Looking for a review of new tune

    Afternoon,
    Did some work modifying my recent tune.
    - MAF is back in.

    Any tips and support would be greatly appreciated.

    Thanks!

    Engine Details
    - 5.3L DBW Gen 3
    - Cam with 0.585/0.585 valve lift
    - No Cats
    - No rear O2's
    - Decapped truck injectors flowed at 80lbs/hr
    - Returnless fuel system with fuel pressure regulator (so, return style now)
    - Walbro 255
    Attached Files Attached Files

  2. #2
    Tuner in Training
    Join Date
    Oct 2017
    Posts
    11
    Morning. Any takers?

  3. #3
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,533
    What is your question though?

    A log file of it running helps see how it's doing. It's hard to tune stuff on an engine stand. If it runs and doesn't stall out, that's pretty good. Without a transmission and a load put on the engine it's hard to tune the MAF and VE for the required changes.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.