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Thread: 2006 Corvette engine swap LS2 >> LS3

  1. #1

    Smile 2006 Corvette engine swap LS2 >> LS3

    Hi All.
    I'm seeking some help.
    Working on a 2006 Vette where some one else have swap the engine from a worn out LS2 engine, to a new Partsworld Performance LS3 / 480 HP engine.
    After some problems, the engine is now up and "running".
    To my knowledge it is a stock re-flashed ECU. Everything else is PP LS3.
    Problem is that, engine starts fine, and runs at idle, as soon you touch the accelerator, engine revs up, and when you release the pedal, engine dies.
    Some times when you drive around, the engine don't die ??? Most of the times you have to use both feed, to keep the engine running.
    Customer tell's me that one time during pretty hard acceleration, everything on dash was blinking, something like engine overload, transmission overload etc.
    I didn't try push that hard, because of weather cond.
    Weather here is 50 deg. F. Humid 90%, Air press 995. hPa (29.4 iHg)
    If someone here can give me support to what to look for, or change / modify. I will appreciate

    Thanks.
    Attached Files Attached Files

  2. #2
    Advanced Tuner
    Join Date
    Jun 2007
    Location
    Finland, Europe
    Posts
    548
    Hello and greetings from Finland.

    It seems to have a 2006 E38 with stock LS2 data.

    Does it have a LS3 MAF?

    Here's 2008 LS3 480 hp tune.

    1230416948.hpt

    Quick and dirty way would be just copy everything under engine (use compare function, select view comparison log, select engine, right click it and select copy over selected differences). Remember to save it with a new name.

  3. #3
    hi Pekka

    thanks for your reply, its a LS3 MAF