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  1. #1
    Got Boost? psycho rxp's Avatar
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    sponsons relocated

    I decided to try out the sponsons in a new spot. I moved them to the rear about 4" or so. I ran them in some mild chop today, and big difference in hookup in the rough stayed planted better and cornered pretty well also. One thing I didn't like was wave jumping with them like this, It wouldn't get as verticle(like an RXT), and would land rougher. I'll have to do some GPS runs when I change wear rings to see if I lost or gained any speed. No porpoising with them like this so far. I'll back to back test some positions when I get my reflashed RR ECU back.
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  2. #2
    Site Admin Green Hulk's Avatar
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    Jason, you read my mind. I was thinking about trying this today, but had too much other stuff to do. Looks interesting!

  3. #3
    Got Boost? psycho rxp's Avatar
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    Maybe this works like the Pro series block offs? , or instead of?? right now my wear ring is shot , but I GPS'ed the day before, and within 1mph difference, but I will retest with a new ring to be sure. I only had to drill 2 new holes

  4. #4
    Water4fire's Avatar
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    Looks similar to Les's sponsons.
    I like the way they come WAY back.

  5. #5
    Got Boost? psycho rxp's Avatar
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    thats where I saw them back that far. Only his look shorter.

    jerry , are yours still angled..stepped?

  6. #6
    Site Admin Green Hulk's Avatar
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    Yes they are, but I don't like them that way.

    Maybe moved farther back and stepped will be the way to go.

  7. #7
    Nonstop, all day, everyday. 01xdime's Avatar
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    I wonder if this would do anythign for the GTX? It sounds interesting but the whole jumping thing is important to me.

  8. #8
    R.I.P. 11's Avatar
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    You better come up with some sort of reinforcement for the rear of your sponsons or they will break, especially with a boat of that size and weight.

    I have seen sponsons with a missing rear bolt break that the 3rd bolt on much lighter skis.

  9. #9
    EZ Dock of Long Island Shibby1485's Avatar
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    i'd highly suggest you guys read the article pistonwash and hydrotoys posted on the yami site and here on the "hull truing" thread... if u read that article already, i bet your mind was really turing some wheels with ideas.. if u have not read it, you are in for a huge education.

    the article is all about handling, sponsons, lift, thrust lines, parabolic vs symmetrical, hook-up, and sponson positioning up, down, back and forward.

    important aspect i learned is that creating lift makes your ski SLOWER = more wet surface... putting the sponsons up all the way reduces lift, thus equals alot less wet surface, but at a sacrifice to few other things... so many things working against each other and alot of key players in the handling, hook-up, and speed game.

    definitely worth a read

  10. #10
    Site Admin Green Hulk's Avatar
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    Shib, creating lift in the back of the ski makes it slower as it makes the nose dig in.

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