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Thread: 2.8L Duramax: Is there known generic tunes available?

  1. #1
    Potential Tuner
    Join Date
    Feb 2020

    2.8L Duramax: Is there known generic tunes available?

    Hello All,

    I am questioning attemtping to tune a 2.8L duramax myself, i have tuned LS engines in the past on EFI Live, but i was told HP Tuners has tuning for the 2.8L figured out already and available, but i dont really see much info talking about it when i do a search. I am looking at putting the 2.8L in a Jeep Wrangler and all the tuners ive contacted refuse to do tuning due to the crack down on diesels lately.

  2. #2
    Senior Tuner
    Join Date
    Jan 2015
    Franklin, NC / Gainesville, Ga
    They're actually fairly easy to tune on the engine side. Trans side is a whole different story and I've actually found the newer trans fluid to fix a lot of the trans issues. I did some writing up on them for fuel mileage and extended regens. I will tell you to keep the power dialed back as the 2.8 is not a very stout motor after gm redesigned vm motori's 2.8 with their own nvh weight savings and so on not to mention that unless you have a 19ish engine you will have injector issues... EFI lacks a whole whole lot on these and hpt is currently adding in some missing tables or at least they were... Leave mode 9 stock on injection, but tweak the turbo slightly - cold engine operation only and then focus on modes 0, 1 and 2...
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    No Longer with passion performance auto for good reasons