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  1. #1
    shotgun10ga's Avatar
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    Rotax 1630 ACE plasma coated cylinders?

    How reliable are these engines given the plasma process? I am thinking about buying an RXT-X 300 and the more I read into this engine the more reliability concerns I have with it. Any thoughts on reliability? How would it compare to a NA 1503 engine?

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    We have 10+ in our group - zero issues. 2016 thru 2020's

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  3. #3
    Plasma is no good imo. Moisture it will bubble and come off pretty easy. I say nickasil last longer and sleeve is also a better option.

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    tiderider's Avatar
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    Quote Originally Posted by ctct2118 View Post
    Plasma is no good imo. Moisture it will bubble and come off pretty easy. I say nickasil last longer and sleeve is also a better option.
    I am still staying away from the plasma coated cylinders. I rather be able to rebuild a 4 tec by simply over sizing twice by .5mm or even at times .25mm from stock.

  5. #5
    moparguy's Avatar
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    Quote Originally Posted by shotgun10ga View Post
    How reliable are these engines given the plasma process? I am thinking about buying an RXT-X 300 and the more I read into this engine the more reliability concerns I have with it. Any thoughts on reliability? How would it compare to a NA 1503 engine?
    https://en.m.wikipedia.org/wiki/Plas...ermal_spraying

    You have nothing to worry about, it only becomes a issue in highly modified, high boost engines. Buy the B.E.ST extended warranty with it and ride the shit out of it for 4 years worry free.

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