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  1. #1
    rangermtb5's Avatar
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    Considering doing a conversion

    I am thinking about doing a gprxp conversion but I have a few questions that I haven't found answers to. I have a good lead on a hull just looking around for an engine.

    Is there like a master set of instructions of how to build a conversion? I read through a bunch of threads but I didn't find one with great details.

    Can somebody explain how cooling system works?

    About how much does it cost to get the driveshaft modified?

    That's it for now.
    Thanks!


  2. #2
    pedruko's Avatar
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    im getting my shaft done with Ted and it is $300 shipped, and about the cooling system and all the details needed to make your conversion you'll find it all here gather a little info from each conversion posted on the site thats how im getting mine done

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  4. #4
    rangermtb5's Avatar
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    Ok, that link actually helped alot. I was looking at this build: http://www.greenhulk.net/forums/showthread.php?t=92025

    and it looks like he is doing a closed loop. Can somebody explain to me the setup for a closed loop system? Thanks!!

  5. #5
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    Get ALL your parts ready before you build...

    Get a running DONOR RXP before you start

  6. #6
    zerowake's Avatar
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    Quote Originally Posted by rangermtb5 View Post
    Ok, that link actually helped alot. I was looking at this build: http://www.greenhulk.net/forums/showthread.php?t=92025

    and it looks like he is doing a closed loop. Can somebody explain to me the setup for a closed loop system? Thanks!!
    you need to run a heat exchanger. on a 4tec the coolant passes through the ride plate, which acts as the heat x. the GPR plate doe snot work like this and may not have enough surface area to adequately cool.

  7. #7
    rangermtb5's Avatar
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    ok, so the heat exchanger would be cooling the coolant?


    Quote Originally Posted by zerowake View Post
    you need to run a heat exchanger. on a 4tec the coolant passes through the ride plate, which acts as the heat x. the GPR plate doe snot work like this and may not have enough surface area to adequately cool.

  8. #8
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    You DO NOT need the run a Heat Exchanger...open loop is fine.

    A heat exchanger is what some of us are starting to try recently, due to constantly having to monitor the engine temp with the different water temps of the northern states...Its STILL in the beginning stages, so unless you know what you are doing/tuning, run with what has been proven so far to work...You can always swap over later

  9. #9
    rangermtb5's Avatar
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    Quote Originally Posted by Danny View Post
    You DO NOT need the run a Heat Exchanger...open loop is fine.

    A heat exchanger is what some of us are starting to try recently, due to constantly having to monitor the engine temp with the different water temps of the northern states...Its STILL in the beginning stages, so unless you know what you are doing/tuning, run with what has been proven so far to work...You can always swap over later
    Ok, that seems fair. This would be the first ski I've built, so I don't want to make it more complicated then it has to be.

  10. #10
    pedruko's Avatar
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    im actually building my first ski (gprxp) and its not as hard as it looks, i personally tell you that the open loop is the way to go

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