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  1. #1

    Join Date
    Apr 2018
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    Seadoo rxtx 300 chasing Gen 80mph upgrade (reliable)

    Hey All
    I have a 2018 Rxtx 300
    it has 17 hrs on it use, looking for options on a reliable 80 mph upgrade
    It does 73 on a good day @ 8100 here in Australia Stock with no mods
    Looking for a bit more mid range and top end speed (minimum 80)
    Where do I start without blowing a hole in my pocket or engine
    thanks in advance

  2. #2
    Probably Tune, intake + Prop but your mileage may vary


  3. #3

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    Apr 2014
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    Phoenix az
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    Riva stage 2 IMUK tune, IMUK delete, Solas SXX 13/18 , rear air and several 2” holes on engine cover behind seat covered with Frogskinz. Rear air cost about $80 with K&N marine filter. 8300 RPM and 80 plus with my 250lb ass. Over 100 trouble free hours. Riva flash has a perfect idle as well.

  4. #4
    prowler1k's Avatar
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    May 2013
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    Grand Lake, OK
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    I have similar mods to AZRIVERBOY, and my result is the same. Been flashed and modded since hour 1 and no problems after three seasons.
    Last edited by prowler1k; 10-28-2020 at 11:42 AM.

  5. #5
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by Seadoo rxt260 View Post
    Hey All
    I have a 2018 Rxtx 300
    it has 17 hrs on it use, looking for options on a reliable 80 mph upgrade
    It does 73 on a good day @ 8100 here in Australia Stock with no mods
    Looking for a bit more mid range and top end speed (minimum 80)
    Where do I start without blowing a hole in my pocket or engine
    thanks in advance
    80 is very easy on this ski. All you need is the MaptunerX tune, air intake and impeller. This kit has everything you need at a discounted price https://www.4-tecperformance.com/ind...oducts_id=7473

  6. #6
    I was looking at getting a solas 13/18 and SS wear ring. I currently have SCOM, catch can, and intake. If I dont do the flash what would happen if I installed the the prop? would my speed go down? Thanks.

  7. #7

    Join Date
    Aug 2018
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    Psssh, you can do 80 with a stock prop, Riva stage 2 flash, and a custom rear air intake. Probably faster than 80 to be honest.

  8. #8
    tiderider's Avatar
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    Quote Originally Posted by rafelos1337 View Post
    I was looking at getting a solas 13/18 and SS wear ring. I currently have SCOM, catch can, and intake. If I dont do the flash what would happen if I installed the the prop? would my speed go down? Thanks.

    The flash removes all limiters. It won't make the engine more powerful.

  9. #9
    ptscon's Avatar
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    Quote Originally Posted by tiderider View Post
    The flash removes all limiters. It won't make the engine more powerful.

    Incorrect.

    A flash which adds ignition timing and/or changes fueling to put it more in the sweet spot for the given engine, will produce more power.

  10. #10
    moparguy's Avatar
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    Sep 2016
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    Ryan@JetX says his custom Riva tune and he bends stock prop, gets you over 80 with stock airbox and exhaust.

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