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  1. #1

    Results of 15 RIVA RPM Kit

    First let me say times are not GPS so I know it will not as exciting as what is shown when GPS time is done.

    Prior Best Speed
    2 bars on Fuel
    Me 210lbs
    Speedo reading=62-63mph

    Yesterday Speed
    Full Tank of Fuel
    Ice Chest Small Sandwich Meat, drinks, ice
    Me-210lbs
    Son-105 lbs
    Speedo reading=66-68 pending location on lake, wind etc.

    Today
    Full Tank of Fuel
    Me-210lbs
    Speedo reading 69-70 pending location on lake and wind. Mostly 69. I think the 71 was a wind aided output and only happed during 1 race with a 1300R, so I am not using that. Those things are quick, or at least the one that I ran with.

    I can not wait to see what it GPS's .

    And imagine if I loose the 25lbs that I need to and run empty tank.....

    I am just hoping for 66 anything more is bonus.


  2. #2

    Join Date
    May 2007
    Location
    Florida
    Posts
    4

    Question MPH??

    Do you credit the increase speed to the RPM kit?

    Please advise and provide detaiols.

    I do not have the kit but he R&D plate and grate
    Riva sponsons & exhaust
    Ada timing
    my bext is 62

    what is wrpng w/ my F15?
    Quote Originally Posted by liner911 View Post
    First let me say times are not GPS so I know it will not as exciting as what is shown when GPS time is done.

    Prior Best Speed
    2 bars on Fuel
    Me 210lbs
    Speedo reading=62-63mph

    Yesterday Speed
    Full Tank of Fuel
    Ice Chest Small Sandwich Meat, drinks, ice
    Me-210lbs
    Son-105 lbs
    Speedo reading=66-68 pending location on lake, wind etc.

    Today
    Full Tank of Fuel
    Me-210lbs
    Speedo reading 69-70 pending location on lake and wind. Mostly 69. I think the 71 was a wind aided output and only happed during 1 race with a 1300R, so I am not using that. Those things are quick, or at least the one that I ran with.

    I can not wait to see what it GPS's .

    And imagine if I loose the 25lbs that I need to and run empty tank.....

    I am just hoping for 66 anything more is bonus.

  3. #3
    Formerly Ultra250 TN Aquaholic6801's Avatar
    Join Date
    Feb 2007
    Location
    Old Hickory,Tn
    Posts
    5,446
    +1
    650
    I also have an '06 15f , I installed the Riva power filter,R&D Ride Plate with reverse brackets,and Riva Exhaust By pass,and I narrowed the intake grate vains, I have run the best of 65.8 on GPS.

  4. #4
    Quote Originally Posted by mamakawi View Post
    Do you credit the increase speed to the RPM kit?

    Please advise and provide detaiols.

    I do not have the kit but he R&D plate and grate
    Riva sponsons & exhaust
    Ada timing
    my bext is 62

    what is wrpng w/ my F15?
    Yes, all credit to kit.

    It is the full kit with Waterbox Mod
    Sponsons set in the middle
    Ride Plate Sealed
    Impeller 14/21

    My only concern was loosing low and mid due to 14/21 impeller, but it spins it fine.

    You maybe at 62 but in the chop I bet that intake grate loads well and would make you hold your own to many.

  5. #5
    I have an '04 15f , I installed the Riva power filter,R&D Ride Plate with reverse brackets, and wedge. I weight 180lbs. and had 1 bar of fuel. On flat water (little to no current) my stock speedo ran 70mph for a good 5 seconds. Anyone have an idea of what my real speed was? I wish I had a GPS.

  6. #6
    christian gpr's Avatar
    Join Date
    Nov 2005
    Location
    Sweden West Coast
    Posts
    206
    mamakawi, I think your speed is about right, mine is about the same anyhow.
    -06 15f 9 hours. All speed runs with 1 or 2 bars of fuel, Gps both directions. Superman
    Stock 61.8mph
    Rouge Big Air filter with breathers 63mph
    Impros/Solas 13/19 63.2mph
    R&D rideplate with brackets 65.2mph
    R&D grate 63.2mph
    I installed everything in this order one by one so I would know what gained me speed and what didnīt. The handling has greatly improved.
    I now also have Ada 5* timing advance and rideplate and holes filled but havīnt had any calm water to Gps in.

  7. #7
    theres no way to give a "real" speed to your stock speedo reading. the only real way is to gps it but i'd say 63-65mph. just to let you guys all know 69mph average is atainable on bolt ons. the only thing i can say is its in the details. i dont want any $hit from what i gpsed just letting you guys know. ive gotten flack before from people on this site so lets leave it at that.

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