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  1. #1

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    engine differences between 1503 and ACE 300 ?

    so far i have only owned 580, 650, 720 and 787 engines. I am considering a RXT 260 or a RXT-X 300 but i don't know much about the 1503 engine line. are they all the same 1503 but with different internals - cams, rods, pistons etc. i know the 1630 ACE is a whole new design but is it that much better than the 1503? if i had to pick i would want the RXT 260 between the 2 but want to make sure the engine is going to be reliable. is it tuned to be on the ragged edge or is it built well enough to handle normal riding. I just don't see many reviews or articles on the 260 option. just trying to gather information.


  2. #2

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    Quote Originally Posted by arctic388 View Post
    so far i have only owned 580, 650, 720 and 787 engines. I am considering a RXT 260 or a RXT-X 300 but i don't know much about the 1503 engine line. are they all the same 1503 but with different internals - cams, rods, pistons etc. i know the 1630 ACE is a whole new design but is it that much better than the 1503? if i had to pick i would want the RXT 260 between the 2 but want to make sure the engine is going to be reliable. is it tuned to be on the ragged edge or is it built well enough to handle normal riding. I just don't see many reviews or articles on the 260 option. just trying to gather information.
    Both are very reliable in my book. No question the 1630 is a significant upgrade. RXTX 300 is a great ski, consider the rxpx if your just riding single most of the time. Lot's of discussion on the two if you search around. Just depends what your goals/budget is.

  3. #3
    GOT BOOST? Dockside's Avatar
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    The ace motor Isnt all new, it's a revised 4tec. Brp took a 4tec and tweeted it. Still a lot of parts that are interchangeable between the too. Imo for the extra money I would go with the 300.

  4. #4
    Sanfish's Avatar
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    (as of today) IMO: For short term ownership 300. For long term, 260.

    Keep in mind, the 300 SC is not rebuild-able and would require complete replacement if/when it came to it, too early for anyone to say how SC holds up long-term. The block is disposable if anything happens to the alloy walls. While it could technically be machined for iron sleeves, it will not be cheap.

  5. #5
    DR2006RXP's Avatar
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    Quote Originally Posted by Sanfish View Post
    (as of today) IMO: For short term ownership 300. For long term, 260.

    Keep in mind, the 300 SC is not rebuild-able and would require complete replacement if/when it came to it, too early for anyone to say how SC holds up long-term. The block is disposable if anything happens to the alloy walls. While it could technically be machined for iron sleeves, it will not be cheap.
    cant the walls be re-coated in nikasil ?

  6. #6

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    I'm on my second RXT-260 and I believe the 1503 is plenty reliable. I picked it over a 300 because I do a lot of touring offshore and fuel stops are far apart. The 260 also has a lower MSRP.

    This is my prediction: For 2018 the 260 will be dropped and then only a 300 and this year's 230 will be offered. I wanted the S3 hull, decent power, and tolerable fuel consumption and I think the RXT-260 fulfills the requirements nicely.

  7. #7

  8. #8

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    Quote Originally Posted by Sanfish View Post
    (as of today) IMO: For short term ownership 300. For long term, 260.

    Keep in mind, the 300 SC is not rebuild-able and would require complete replacement if/when it came to it, too early for anyone to say how SC holds up long-term. The block is disposable if anything happens to the alloy walls. While it could technically be machined for iron sleeves, it will not be cheap.
    Sounds like issues for the 2nd and 3rd owners. Very few first owners probably ride there ski to 100 hours yet alone to 200 hours. Seadoo is probably betting on the warranty being long gone before the hours catch up.

    I have to believe that by the time rebuilding becomes an issue, someone will come out with a rebuild kit.

    Quit hating and go get one already!

  9. #9
    Sanfish's Avatar
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    Quote Originally Posted by DinoMite View Post
    Sounds like issues for the 2nd and 3rd owners. Very few first owners probably ride there ski to 100 hours yet alone to 200 hours. Seadoo is probably betting on the warranty being long gone before the hours catch up.

    Quit hating and go get one already!
    Guess its hard for me to understand how someone can own a PWC and not put 100..200..300hrs on it. I'm just under 350hrs (bought in '14) on my PX.

    As for "hating"....don't forget, I came from riding bad ass standups to my 800LB couch. Anything is possible!

  10. #10

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    Quote Originally Posted by Sanfish View Post
    Guess its hard for me to understand how someone can own a PWC and not put 100..200..300hrs on it. I'm just under 350hrs (bought in '14) on my PX.

    As for "hating"....don't forget, I came from riding bad ass standups to my 800LB couch. Anything is possible!
    You should be ashamed of your carbon footprint. You might need to buy some carbon credits from California.

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