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  1. #1
    Its better to burn out than fade away christian79's Avatar
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    More options than a GPRSHO or GPRXP?

    I would love to convert one of my skis to a GPRSHO or GPRXP but believe it or not the GPR is fast enough for me in stock form. So the extra $$$$ for those two conversions would not make sense. However I noticed that Addicted and DP. have both done conversions that make more sense to me.

    My conversion goals:

    1) Better fuel economy
    2) More reliable engine (No more 2-smoke)
    3) A more unique ski (I know... How immature)
    3) 65 to 75 MPH (GPS)

    What are my options? Where the heck do I find this poor destroyed FXHO/FX160s? What are the ball park costs?

    Thanks guys and galls


  2. #2
    Moderator Insanediego Joe's Avatar
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    Quote Originally Posted by christian79 View Post
    I would love to convert one of my skis to a GPRSHO or GPRXP but believe it or not the GPR is fast enough for me in stock form. So the extra $$$$ for those two conversions would not make sense. However I noticed that Addicted and DP. have both done conversions that make more sense to me.

    My conversion goals:

    1) Better fuel economy
    2) More reliable engine (No more 2-smoke)
    3) A more unique ski (I know... How immature)
    3) 65 to 75 MPH (GPS)

    What are my options? Where the heck do I find this poor destroyed FXHO/FX160s? What are the ball park costs?

    Thanks guys and galls
    get a stock rxp motor. update the super charger washers and call it good. run forever. better yet get a non sc rotax and your great grand kids will be riding the ski.

  3. #3
    Its better to burn out than fade away christian79's Avatar
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    What "roughly" would the parts for a GPRXP build cost?

    Quote Originally Posted by Insanediego Joe View Post
    get a stock rxp motor. update the super charger washers and call it good. run forever. better yet get a non sc rotax and your great grand kids will be riding the ski.

  4. #4
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    or break some new ground and put a stx12f or stx15f motor in it, those will run longer than the fiberglass will last...

    Sean

  5. #5
    Banned User
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    Quote Originally Posted by christian79 View Post
    What "roughly" would the parts for a GPRXP build cost?
    by the time you part out the doner boat you "could" be under $1000. If you are able to do the work yourself, it gets pricey paying other people.

  6. #6
    Hydrotoys's Avatar
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    A couple of rules that will help you succeed with whatever you choose.

    -If you buy a piece of shit donor ski, then you will have a piece of shit conversion ski. If they abused it, then you are just converting their crap. You will never be happy.

    -As was mentioned... do your own work. If you can't do your own work, consider buying a regular ski and just riding it.

    -I love the idea of a non-SC GPRXP and think it should be done by someone who wants a great family ski. I imagine without the crappy SC system, that engine would live for hundreds of hours without a hickup. I imagine you could easily get high 100's, low 200hp out of a non-sc ski with some engine work too.

  7. #7
    Hydrotoys's Avatar
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    I went looking in the local paper for a 155 whatever they were called.

    I found a few about $5000ish. But I think the price would have to be WAAAAAAAAAAAAY dirt cheap to make it worth chopping up a good solid 60mph watercraft like a GTI155.

  8. #8
    mrbtd's Avatar
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    Quote Originally Posted by Hydrotoys View Post
    I went looking in the local paper for a 155 whatever they were called.

    I found a few about $5000ish. But I think the price would have to be WAAAAAAAAAAAAY dirt cheap to make it worth chopping up a good solid 60mph watercraft like a GTI155.
    Funny you mention it..I had planned on doing this very thing for my daughter but the prices just dont make sense. Especially considering the hull's all those 155 motors come in are Junk.

    Believe it or not about 6 years ago I owned a GTX SC (185hp motor) that was totaled because of a trailer accident. I sold the damn thing and still regret it.

    The 185hp motor has a decent S/C set up and if you can get the valves updated they go forever.

  9. #9
    Hybrid AWD's Avatar
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    Even with the SC Rotax and proper maintenance, I can't imagine it not lasting for a long time.

    I believe 99% of something being reliable and lasting a long time starts with the rider. The other 1% is split between normal wear and tear and then manufacturers defects.

  10. #10
    Hydrotoys's Avatar
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    very true.
    I rode the vigilante with the stock SC for 30 hours or more, on the stock SC at 78-82mph... ceramic washers and all. Super reliable, and a very fun ski. It wasn't super quick but just a great little setup. I truely wish I would have kept it stock and kept the ski. Oh well.

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