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  1. #1
    jcc011185's Avatar
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    Cost to modify a good stock ultra 150 impeller?

    I'm interested in the pitch upgrade (mod stock) impeller... I think it's you guys that perform that service, which changes the pitch of the stock ultra 150 impeller slightly and brings the performance almost equal to the solas KH-DF prop.

    I'm just curious as to the cost of such service?

    Thanks in advance!
    Jared


  2. #2
    Give Dave over at IMPROS a call or PM him

  3. #3
    I cant believe that miata can tow the ski lol

  4. #4
    old school big raider's Avatar
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    Quote Originally Posted by jcc011185 View Post
    I'm interested in the pitch upgrade (mod stock) impeller... I think it's you guys that perform that service, which changes the pitch of the stock ultra 150 impeller slightly and brings the performance almost equal to the solas KH-DF prop.

    I'm just curious as to the cost of such service?

    Thanks in advance!
    Jared
    what was wrong with the solas prop that had you running a rounded up 70mph?

  5. #5
    jcc011185's Avatar
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    I sold the solas prop. I could not properly clearence it with my pump without having to send both it and the pump in (impros or skiworx) for blue printing. Thus I was not getting all that I could out of it, I might have as well bought a new solas prop instead of a used one.. My stock impeller has pretty much clearenced itself with my pump, making it hard to use another used prop and get it shimmed correctly. Even so, with my stock prop, dinged as it is.. I was able to pull 67.7 monday evening. Not very far from what I got with the solas prop. Attached is a picture I took with my phone monday. That 67.7 was not just a blip on the gps either, I was able to get it there and keep it there, so not just a technical error. The 69.something I was able to get with the solas was with me doing superman as well.

    Another thing, steve from skiworx, actually recommends a mod stock impeller on a completely stock machine then the solas as it will tend to be too much prop.

    But, overall.. yes I did get a small gain from the solas... not enough for me to justify keeping it especially with the bigger clearence issue I had with it.

    Who knows, next season I might get another solas, but it will be a new one this time.

    Quote Originally Posted by speedjunkie418
    I cant believe that miata can tow the ski lol
    Lol, that miata is supercharged with a jackson racing mp62 supercharger with lots of other goodies. It's well over 250 horsepower now and sometimes I forget the ski is even there. That's a bad thing, because my beloved ultra is going to be on the side of the road one day when I make just that right turn.

    Jared
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