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Thread: cone spacer

  1. #1

    Join Date
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    cone spacer

    Has anyone used a cone spacer and why does it make a diffrence. There are two thicknesses and how would you know which to choose.


  2. #2
    I'm guessing here...a cone spacer reduces the area inside the venturi...thereby increasing thrust and reducing rpms...no?

  3. #3
    no engine elbchecker's Avatar
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    Nov 2007
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    Quote Originally Posted by VaRedneck View Post
    I'm guessing here...a cone spacer reduces the area inside the venturi...thereby increasing thrust and reducing rpms...no?
    I have the bigger one installed in my ski. But, at the moment i cant test it.
    But i think you are right.

  4. #4
    no engine elbchecker's Avatar
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    Nov 2007
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    Before i forgot,
    when you want to install the cone spacer, remove the second of the 2 o-rings. Because, it havent contact to the pumpcone anymore.

    I think this is a very good option too, to prevent cavitation.
    http://www.4-tecperformance.com/inde...2804886a4a81b8

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