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  1. #1

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    oem impeller size



  2. #2
    Live Fast wave15stx's Avatar
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    u going to be doing a reflash?

  3. #3
    64physhy's Avatar
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    With the mods you have listed, you will probably be ok with the stock impeller, unless the water and air is cool where you live. 13/22 is probably the max you should use. Do a search, there are many threads with this info. I think the stock impeller is either 12/19 or 14/19. When I had the same mods that you have listed, I hit the limiter a lot in 59 degree water and about 70 degree air. In warmer water, air, and higher humidity, you might not hit the limiter with those mods.

  4. #4
    mjh3ides's Avatar
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    OEM pitch is 12/20. You'll likely need to add some pitch to stay off the limiter with those mods, even in warm weather.

  5. #5

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    Quote Originally Posted by mjh3ides View Post
    OEM pitch is 12/20. You'll likely need to add some pitch to stay off the limiter with those mods, even in warm weather.
    Isn't that the SHO impeller, the FZ is different? We need an accurate clarification of the FZ OEM impeller.

  6. #6
    mjh3ides's Avatar
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    Quote Originally Posted by Jack B View Post
    Isn't that the SHO impeller, the FZ is different? We need an accurate clarification of the FZ OEM impeller.
    Nope. Same part #. Same pitch.

  7. #7

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    so the FZ OEM impeller is 12/20 thanks

  8. #8
    mjh3ides's Avatar
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    Quote Originally Posted by zx270 View Post
    so the FZ OEM impeller is 12/20 thanks
    Yep, no problem dude. 13/21 or 13/22 should be just about right for those mods. Just make sure you use a digital tach for tuning because the stock tach is useless.

  9. #9

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    i thought the stock impellor was 12/19. anyway go for a skat prop not solas, the solas gives loads of cavitation.

  10. #10

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    thanks for advice >>>>.

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