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Thread: Line Pressure for 6R80, what are you running? Any issues?

  1. #1
    Advanced Tuner
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    Line Pressure for 6R80, what are you running? Any issues?

    Stock Line pressure is 150psi. I've seen discussions about this and Eric replied that he saw 265 in some stock tunes. Anyone know what vehicle that is?

    I believe in a repair video on the 6R80 someone mentioned the stock seals internally leak (slightly) at stock pressures and bumping line pressure too high can cause failure in the seals.

    The tuning book I have says higher than 150 but I am reluctant to raise it until I hear back from folks run higher pressure without problems. I'd like to think 150 psi is a conservative 'max' pressure?
    Last edited by blackbolt22; 07-23-2019 at 07:10 AM.
    Knock Retard is like a Horsepower Tax:
    ( + ) Knock Retard = More Taxes = Less Horsepower
    ( -- ) Knock Retard = Less Taxes = More Horsepower
    You like less taxes, right?

    2014 Mustang GT Premium. 4C & Borla Exhaust
    "Don't fix it if it ain't broken"

  2. #2
    Advanced Tuner
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    No one is running higher than 150? I guess I'm expecting a reply like "Been running 250 psi for 2 years and no issues so far"...
    Knock Retard is like a Horsepower Tax:
    ( + ) Knock Retard = More Taxes = Less Horsepower
    ( -- ) Knock Retard = Less Taxes = More Horsepower
    You like less taxes, right?

    2014 Mustang GT Premium. 4C & Borla Exhaust
    "Don't fix it if it ain't broken"

  3. #3
    Advanced Tuner veeefour's Avatar
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    250 is what I've seen. Not sure you ever need to go above 200 even with high power applications.