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  1. #1
    HDU505's Avatar
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    155 or 160mm pump to improve hole shot?

    Don't know if it's the combination of new cold air intake and grate or if it's wear ring and prop wear but my fxsho cavitation from hole shot and even from 1/4 throttle launch is far more noticeable. My ski has 36 hours on it. Happy to buy a stainless wear ring and after market prop to reduce cavitation if that's what it takes. If I go down this path is it worth going to the 160mm pump or not? Hole shot more important to me than top speed. Also what prop pitch? 14/21 seems popular. Future mods are ET low boost, improved inter cooler and reflash.
    Thanks in advance


  2. #2
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by HDU505 View Post
    Don't know if it's the combination of new cold air intake and grate or if it's wear ring and prop wear but my fxsho cavitation from hole shot and even from 1/4 throttle launch is far more noticeable. My ski has 36 hours on it. Happy to buy a stainless wear ring and after market prop to reduce cavitation if that's what it takes. If I go down this path is it worth going to the 160mm pump or not? Hole shot more important to me than top speed. Also what prop pitch? 14/21 seems popular. Future mods are ET low boost, improved inter cooler and reflash.
    Thanks in advance
    160mm is going to be too much for your current modifications. I would run the Skat 13/23 with your current mods
    http://www.4-tecperformance.com/inde...roducts_id=965

  3. #3
    HDU505's Avatar
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    Thank you sir

  4. #4
    HDU505's Avatar
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    OK Just ordered a 13-23 through your 4-tech store. look forward to getting it on!

  5. #5
    pwc4life's Avatar
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    Quote Originally Posted by Green Hulk View Post
    Quote Originally Posted by HDU505 View Post
    Don't know if it's the combination of new cold air intake and grate or if it's wear ring and prop wear but my fxsho cavitation from hole shot and even from 1/4 throttle launch is far more noticeable. My ski has 36 hours on it. Happy to buy a stainless wear ring and after market prop to reduce cavitation if that's what it takes. If I go down this path is it worth going to the 160mm pump or not? Hole shot more important to me than top speed. Also what prop pitch? 14/21 seems popular. Future mods are ET low boost, improved inter cooler and reflash.
    Thanks in advance
    160mm is going to be too much for your current modifications. I would run the Skat 13/23 with your current mods
    http://www.4-tecperformance.com/inde...roducts_id=965
    Jerry, what is the minimum level of mods on an FZR or SHO that you would recommend a 160mm prop for?

  6. #6
    Site Admin Green Hulk's Avatar
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    I would go with a 160mm setup once a ski is modded to reach 80 or better MPH

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