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  1. #1

    What causes buffeting with higher boost wheels?

    I have read in a few posts that it is normal with higher boost wheels to experience some buffeting within certain RPM ranges. With my E1, it is worst b/w 3-4000rpm, and pretty damn annoying. Can anyone explain what causes this and is it bad to run in that range?


  2. #2
    FZS-T
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    that It's called Surge..

  3. #3
    Gotcha--Does the included HKS BOV relieve that back pressure (act as a surge protector) or is a surge protector a separate component?

  4. #4
    FZS-T
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    NO, The BOV acts as a surge Protector

  5. #5
    This does not sound like compressor surge to me...

    Compressor surge occurs when you are creating boost and you release the throttle quickly and the surge is between the closed throttle body and the wheel still making boost. The buildup of pressure causes a violent deceleration of the wheel.

  6. #6
    To clarify--this is not an off-throttle issue. It occurs consistently with throttle on while cruising at rpms b/w 2-4000. It is significant enough of a shudder to make cruising less than 30mph annoying. It will stop if I rev above 5000 and start again if they drop to or below 4000. What gives?

  7. #7

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    Don't worry too much about it.
    With a 24 pound wheel it becomes very annoying at that preboost range.
    You can modify your sc housing.
    Or ride around at above that range.

  8. #8
    E1 wheels are notorious for that 3-4k shudder... My ET18 doesnt do anything like that. Zero shudder. Others have complained about shudder also on the E1.. Design flaw... They make good boost but are terrible in the driveability section.

  9. #9
    robk's Avatar
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    Switch to the C-3 wheel, a little less boost than the E-1, but I've never noticed anything like your describing.

  10. #10
    Quote Originally Posted by Gunna View Post
    Don't worry too much about it.
    With a 24 pound wheel it becomes very annoying at that preboost range.
    You can modify your sc housing.
    Or ride around at above that range.

    Modify your S/Ch into a Turbo

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