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  1. #1
    Junior Member
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    Jun 2012
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    Default 4L80E Line Pressure

    Hello All!
    I am still a bit of a Noob when it comes to the programming aspect of performance, so I totally need some help from someone with more knowledge. I am posting this in the transmission and forced induction section for two different issues.

    To start, this is a turbo (S366) third gen 5.3 with a GT2-3 cam and 2000 LS1B w/ COS 5. Its in a heavy 4x4 with a fresh SRTA 4L80E 2K stall and 3.73's

    The question I have in this thread, is do I have the line pressure correct for my application? The trans builder said to have all the line pressure in by 25% throttle or so. I'm sure there are a number of things wrong with this tune, including the shift points, but I am doing it one at a tome right now. Could someone please tell me if I'm going to burn up this trans? Especially when I begin to tow. (4-5K lbs)

    THANK YOU!!
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