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ATI FMU installation on an 02' LS1

This is a discussion on ATI FMU installation on an 02' LS1 within the Forced Induction forums, part of the LSx Technical Help Section category; Anyone have any instruction, diagrams, good info on installing an ATI FMU on an 02' LS1? I am considering a ...

  1. #1
    Member TedsB4Csled's Avatar
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    ATI FMU installation on an 02' LS1

    Anyone have any instruction, diagrams, good info on installing an ATI FMU on an 02' LS1? I am considering a simple STS Turbo and want a little more fuel management. Also, will this benefit me if not using a turbo? -Or should I install it with forced injection when the time comes? A Walbro pump may eventually follow.
    Thanks!

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    Member knappbunch's Avatar
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    definatly do the feul pump with the turbo install and the meth but these guys have a good intercooler set up for the sts kit. with the sts kit you will want a boost controller because you loose some boost pushing it to the front and also if you do intercooler. I want to do the intercooler because I don't want to have to fill a meth tank all the time. plus the sts kit pushes about 5lbs stock and you can run 8 to 9 without hurting the motor.

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    Member squee's Avatar
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    How often would the meth tank need to be refilled driving normally? I'd probably use the windshield washer tank.

  4. #4
    TunedbyFrost.com Tuner Frost's Avatar
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    Quote Originally Posted by TedsB4Csled View Post
    Anyone have any instruction, diagrams, good info on installing an ATI FMU on an 02' LS1? I am considering a simple STS Turbo and want a little more fuel management. Also, will this benefit me if not using a turbo? -Or should I install it with forced injection when the time comes? A Walbro pump may eventually follow.
    Thanks!


    FMUs are dinosaur technology, why not just run a carb... Seriously though, this is what tuning is for. FMUs are sloppy and inefficient. There is no reason in the world to use one, ESPECIALLY BEING NA. They are just rising rate regulators that are greater than 1:1 against MAP.

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    Junior Member Chad Nielson's Avatar
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    Frost is right,

    There is no need for the FMU on your car, I have only upgraded the Injectors to 42# and i am fine running on 5psi. You just need a tuner!! Frost could probably tune it.

  6. #6
    Member TedsB4Csled's Avatar
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    No FMU for me. Thanks for the info.

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    Quote Originally Posted by TedsB4Csled View Post
    Anyone have any instruction, diagrams, good info on installing an ATI FMU on an 02' LS1? I am considering a simple STS Turbo and want a little more fuel management. Also, will this benefit me if not using a turbo? -Or should I install it with forced injection when the time comes? A Walbro pump may eventually follow.
    Thanks!
    Are you that guy that wanted to buy my ATI FMU??

  8. #8
    Member TedsB4Csled's Avatar
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    yup, that was me. Decided not to go with STS or any FI, for now. Welcome to LS1.com!

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