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  1. #1
    ben01251979's Avatar
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    What would be involved in turbo charging a fuel injected Polaris 2-stroke engine?

    Has anybody ever turbo charged a virage I or can it even be done?


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    Click avatar for tech links/info, donation request K447's Avatar
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    You would have to change almost everything. Engine computer, intake, exhaust, cylinder porting.

    There are turbocharged 2-stroke snowmobiles running around. A lot of work is involved.

  3. #3
    ben01251979's Avatar
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    So it would be awesome if done but cheaper to buy one that is all ready done I take it

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    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by ben01251979 View Post
    So it would be awesome if done but cheaper to buy one that is all ready done I take it
    The 'easy' method would be to install a Seadoo 4-Tec or Yamaha 4-stroke PWC engine in the hull.

    There are several engine conversions in MSX hulls but I don't know if anyone has done a Virage engine conversion. I was just noodling the very idea myself earlier this week

    A 4-Tec powered Virage would be very quick. I don't know how much top speed the Virage hull can handle before the handling would get squirrelly.

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    ben01251979's Avatar
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    Well now that sounds like a project that I might have to try and do this winter so for now will try and locate a virage with a blown motor in it

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    ben01251979's Avatar
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    Ok so I just looked up a picture of that 4 - tec engine and that project would be like putting a big block chevy motor in to a smart car. It will be a pain in the butt but the end result should be awesome

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    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by ben01251979 View Post
    Well now that sounds like a project that I might have to try and do this winter so for now will try and locate a virage with a blown motor in it
    That should not take long.

    The Polaris Genesis is one of very few watercraft that is officially rated to carry four people. No current new PWC is rated for more than three. An engine conversion in a Genesis, which is essentially a stretched Virage, would literally be something you cannot buy.

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    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by ben01251979 View Post
    Ok so I just looked up a picture of that 4 - tec engine and that project would be like putting a big block chevy motor in to a smart car. It will be a pain in the butt but the end result should be awesome
    The 4-Tec engine really is the small block of the watercraft world.

    Have a look at some of the MSX engine conversion threads. That will give you an idea of what is involved.

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    ben01251979's Avatar
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    So a genesis with a 4-tec is the way to go u think

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by ben01251979 View Post
    So a genesis with a 4-tec is the way to go u think
    All depends on what you want.

    The guys who are into off shore fishing from PWC are loving the Yamaha SUV with engine conversion. The SUV is very large so it is extremely stable in big water.

    The Polaris Genesis is certainly not small but it is the smallest of the four person rated hulls. And it is quite comfortable with only two or three people. Many watercraft are happiest with one person less than the rated maximum, both in terms of comfort for the people and ride characteristics.

    The Genesis is about as large as a PWC can be before it stops being playful and becomes almost a boat with handlebars.

    The other four seater is the Seadoo LRV, which is something of an acquired taste.

    All of these were only made with 2-stroke engines at the time.

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