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Thread: What is a FMU?

  1. 02-19-2004, 12:56 PM #1
    86LXItooFAST4me
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    What is a FMU?

    what exactly is a FMU and what is its purpose and performance used for?

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  2. 02-19-2004, 01:47 PM #2
    SteveDX89
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    It's a fuel management unit. It's mainly used in turbo and supercharged applications to make sure enough fuel get to each cylinder so there's no detonation. I thought they were an electronic system but maybe this is part of it too.
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  3. 02-19-2004, 01:57 PM #3
    TegraCraze
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    Quote Originally Posted by SteveDX89
    I thought they were an electronic system but maybe this is part of it too.
    Actually they operate via vacuum lines. For instance an 8:1 FMU raises the fuel pressure 8psi per 1 lbs of boost.
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  4. 02-19-2004, 02:15 PM #4
    shepherd79
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    some FMU are vacuum and some are electric.
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  5. 02-19-2004, 02:24 PM #5
    86LXItooFAST4me
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