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Thread: LLY Defueling

  1. #1
    Advanced Tuner
    Join Date
    Mar 2009
    Location
    Andover, MN
    Posts
    436

    LLY Defueling

    Hi I have been trying to find a decent way on adjusting the defuel between shifts. It seems that not many people tune their own Diesels, compared to Gen 3/4 LS's lol. I am no stranger to Ls but this is my first diesel. I have a decent mild tune I feel so far. Adjusted Pulsewidth, timing, and boost. Stock transmission for now so I dont want to go overboard with the Defueling tables, but I can't seem to wrap my head around on how the tables correlate with each other and how much or where to adjust. It makes sense logging the truck wanted a desired transmission torque on shifting around 160 Ft/lbs and dropped the fuelling to 35mm, which matches the tables. My question is do you just change the torque model or do you play with the torque based fuel? I seen someone explain to do both but i feel like that is redundant for the same product. Any insight would be helpful. I am trying to bring back the old days of LS tuning to diesel, haha.
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