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Thread: LS1 Rpm Limit stuck at 5500rpm t400

  1. #1
    Potential Tuner
    Join Date
    Sep 2017
    Posts
    5

    LS1 Rpm Limit stuck at 5500rpm t400

    Just had an LS1 Powered Toyota Hilux come into the shop that had already been tuned and limters have been set very high on a stock motor but it will just keep cutting out at 5500rpm.
    Stock LS1 with a built T400 and 35inch mud tyres, only made 225rwhp when I was done with it at 5100 rpm.Is this due to big tyres?

    No speed signal from gearbox
    Engine runs perfectly well, I just cannot find out why its limiting at 5500rpm.
    Attached file is how it came in.

    Any help would be great.Scotts,ls1hiluxstock.hpt

  2. #2
    Advanced Tuner
    Join Date
    Feb 2015
    Location
    Perth, Australia
    Posts
    974
    turn off trans abuse mode, zero all engine Torque management and set start up modifier to your desired limiter

  3. #3
    Advanced Tuner
    Join Date
    Feb 2015
    Location
    Perth, Australia
    Posts
    974