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  1. #1
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    2008 4-Tec External Oil Cooler

    I am in the planning phase of trying to stuff a 2008 RXT-X 255 into a Kawasaki STX hull without drastically cutting up the inner hull like the conversion guys typically do. This led me to the question I need y'alls help with.

    Has anyone replaced the OEM Block mounted oil cooler with an aftermarket remote mount? It looks to be simple enough to run some AN o-ring fittings off the stock ports with a hold down plate in the stock bolt holes.



    Thanks,

    Sean
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  2. #2
    raiderx72's Avatar
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    What's your water temps like? Might be a me to just not run one

  3. #3
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Quote Originally Posted by raiderx72 View Post
    What's your water temps like? Might be a me to just not run one
    I ride in the Houston area so water temps can get to 90+ f

    Sean

  4. #4
    ptscon's Avatar
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    It's a closed loop system, water temperature you ride in doesn't have much effect on the coolant temperature which flows through the oil cooler. If they could get away without including an oil cooler to save money they would, it's a must.

  5. #5
    raiderx72's Avatar
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    Quote Originally Posted by ptscon View Post
    It's a closed loop system, water temperature you ride in doesn't have much effect on the coolant temperature which flows through the oil cooler. If they could get away without including an oil cooler to save money they would, it's a must.
    I know of 2 skis in My area with no oil cooler And open loop.. Not a must depending on water temps

  6. #6
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Quote Originally Posted by raiderx72 View Post
    I know of 2 skis in My area with no oil cooler And open loop.. Not a must depending on water temps
    Planning to stay closed loop with a parallel plate exchanger when I swap over to the stx hulls. I am also planning to keep some form of oil cooler on the ski wether block mounted as stock or remote. Just for more fine temersture control.

    Sean

  7. #7
    dcuhpw's Avatar
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    Were you thinking something like this? https://www.cpperformance.com/p-1460...ooler-kit.aspx

  8. #8
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    More or less, just not $500 worth of plates.

    I picked up some version of an exchanger from


    http://www.dudadiesel.com/heat_exchangers.php

    For the water side so I may snag another for the oil cooler.


    Sean

  9. #9
    gone fishing sucks2bu's Avatar
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    Tap the oil holes coming out of the block, or just directly weld them to the block if using aluminum fittings,Two 90 an fittings -8 maybe. Remote cooler like the gprxp's used to put on as a radiator but you would run oil through one passage and water in the other.

    Basically the same system you have now but remote mounted where ever you like.

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  11. #10
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    given the HP per cylinder potential and the slightly anemic oil capacity compared to the 15f motor I would say an oil cooler is a must.

    One of my favorite service sales line is:

    dude, if your ski was a v8 it would be rated at 640 Hp, you sure you don't want me to change he oil? <head tilt>

    Don't the newest seadoos have the ability to report oil temps? I 'll wbe first to say that excess instrumentation is a deadly distriction

    but at least give me the option for knowing what the oil temp is, even if it's a tri color LED

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