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  1. #1

    Join Date
    Sep 2011
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    Stock Rev Limiter

    Hello All. New member that has spent hours viewing this incredible forum. I had to join in on the party. Half of you guys (are there any girls) should have been rocket scientist instead of sea doo techs with the incredible knowledge you have for your craft.
    Question: I installed a riva stage 1 kit with a aquavein grate on my 2010 rxtx260. On my test ride it went 72mph on the dash. Next I removed the intake flame arrester. I went for a run. 73mph at 8100rpm's wot. During the run I hit a wave at wot. RPM's went to 8889. HOLY S__T. Is this normal! I thought the factery rev limiter would keep it at 8100rms.


  2. #2
    MSRXP's Avatar
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    I highly doubt you saw 8800. As the limiter is 8300.

  3. #3
    Without any internal work eg; valves retainers etc if your motor spun to nearly 8900 u would bent a valve for sure at the least!! U must of seen the dash wrong or unless u have a faulty cluster I doubt it though

  4. #4
    JT jpt7779's Avatar
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    Jul 2008
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    Pittsburg, Texas Lake Bob Sandlin
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    The hard rpm limit is 8300. There is a "soft" rpm / boost limit on the 2010+ that you will see at 8040 rpm, the ski WILL allow you get 8100 rpm, but will drop dramatically to 7960-7980 after about 5 seconds, then creep back up to around 8040. This is completely different from prior years!

    The high rpm indications are normal, we all see it but, it is NOT accurate - they are momentary excursions that are displayed. You would really hear and feel the engine if it were able to actually rev that high, this is a software indication. I have seen actual BUDS and CanDoo data dumps on my ecu several times, and these high excursions are NOT recorded. Valve float would start to occur above 8300 rpm with out light weight retainers.

    The GPS speed on the dash rounds UP 0.5 to 1.5 mph compared to hand held gps units.

    You want to pitch your prop to hold a solid 8020-8040 with a STOCK ECU. The Riva SCOM ONLY got rid of the 69-70 mph speed limit, it does NOT address the rpm / boost limits in the ecu. The ONLY way to get rid of this BS is to have the ECU re-flashed.

    And welcome to the Hulk!


  5. #5
    stuckmoto's Avatar
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    Quote Originally Posted by jpt7779 View Post
    The hard rpm limit is 8300. There is a "soft" rpm / boost limit on the 2010+ that you will see at 8040 rpm, the ski WILL allow you get 8100 rpm, but will drop dramatically to 7960-7980 after about 5 seconds, then creep back up to around 8040. This is completely different from prior years!

    The high rpm indications are normal, we all see it but, it is NOT accurate - they are momentary excursions that are displayed. You would really hear and feel the engine if it were able to actually rev that high, this is a software indication. I have seen actual BUDS and CanDoo data dumps on my ecu several times, and these high excursions are NOT recorded. Valve float would start to occur above 8300 rpm with out light weight retainers.

    The GPS speed on the dash rounds UP 0.5 to 1.5 mph compared to hand held gps units.

    You want to pitch your prop to hold a solid 8020-8040 with a STOCK ECU. The Riva SCOM ONLY got rid of the 69-70 mph speed limit, it does NOT address the rpm / boost limits in the ecu. The ONLY way to get rid of this BS is to have the ECU re-flashed.

    And welcome to the Hulk!

    +1 I've hit the 8600+ even early on during the first season before mods...spinning out,jumping,etc...
    @hustler - send your impeller to Erik @ speedfreeks racing and get it re-pitched(make sure to tell him you're mods and YEAR of ski)<<<you won't be sorry!

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