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Thread: Free Flow

  1. #1

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    Free Flow

    I was thinking about doing a free flow on my 02 gpr about how much speed will i really lose in my top end???


  2. #2
    ABBOTT's Avatar
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    speed will all depend on your setup (mods) but the rpm loss on top are very commonly reported to be about 50 to 75. Common conversions to that in MPH are about .5 to 1 full MPH in loss.

  3. #3
    Moderator RX951's Avatar
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    Welcome to the Forum moosegpr

  4. #4

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    Thanx for the info

  5. #5
    ABBOTT's Avatar
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    Re: 1200 free flow

    Quote Originally Posted by Rocketman
    Quote Originally Posted by ABBOTT
    speed will all depend on your setup (mods) but the rpm loss on top are very commonly reported to be about 50 to 75. Common conversions to that in MPH are about .5 to 1 full MPH in loss.
    The 1200 gpr loses no top end with the free flow. It needs it......
    Sorry abbottjohnabbott.
    News to me?? Never heard that before.

  6. #6

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    Abbott, your post was correct!

  7. #7
    Moderator RX951's Avatar
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    With a free flow, you will tend a lose a few rpms due to the backpressure being lower vs. having the stock sound suppression box in.

    With a free flow, it will be louder and it helps lower the chance/risk of detonation with higher compression heads installed.

  8. #8
    YudLuz2's Avatar
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    About 30 rpms to be exact.

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