Results 1 to 8 of 8
  1. #1
    rxpfun's Avatar
    Join Date
    Nov 2005
    Location
    Panama City, FL
    Posts
    186

    FX Cruiser owners

    I sold my RXP on Monday and picked an '04 FX Cruiser HO the next day and I think I wanna make some changes to it. Who has installed the Riva rpm kit on a FX HO? I am thinking of just adding the filter/velocity stacks and exhaust for now. What kind of gains should be expected?

    I posted this in the for sale forums whoops, hopefully soomeone can get this moved to its proper place. sorry!

    rxpfun


  2. #2

    Join Date
    Apr 2006
    Location
    panama city beach 'fl
    Posts
    1,846
    +1
    9

    Talking

    mick you just ask me that!

    later cdpcb

  3. #3
    rxpfun's Avatar
    Join Date
    Nov 2005
    Location
    Panama City, FL
    Posts
    186
    I know chip..

    I wanna see what other people are gettin from this kit.

  4. #4
    Moderator RX951's Avatar
    Join Date
    Apr 2005
    Location
    League City, Texas
    Posts
    16,066
    +1
    23
    I moved the thread to the performance section

  5. #5

    Join Date
    Jan 2006
    Location
    Australia
    Posts
    62
    +1
    1
    Here is a post of mine previously (another forum) ...

    With the RPM kit the engine rpms go higher ... somewhere around 250-300 rpm.

    In my opinion its the free flow exhaust pipe that makes the most difference and allows this ...

    I have had the trumpets, free flow air-filter, ride plate, PPK, Intake grate and sponsons on and the craft did not improve at all top speed ... with the stock prop still on and no free-flow exhaust. Hook up improved sure ... and handling but top speed was virtually the same.

    In fact ... in smooth water the my wife's 06 Black FX (stock outta the crate) pulled away ever so slightly over a 1 mile race ...when it chopped up a bit I went passed because the pump stayed hooked up longer (Intake grate and PPK).

    I have also tried a 14/20 Dynafly impeller (The RPM kit prop) in a stock craft (my 05 FX Cruiser) and it was a dog ... I lost 2mph off the topend and it was doughy off the line and in turns. A 13/20 Concord dropped .5 mph off the top only but was fantastic off the line and mid-range. This would be a good replacement prop for a stock craft if the Yammy original was too expensive. I'm not sure Solas have put the Concord 13/20 for the 155mm pump into production yet ?? I did get some cavitation burn on the 13/20 and stock prop after 45 and 75 hrs respectively mid blade ... Proper pump seal with marine sealant when installing PPK might solve this ...???

    I think there are two ways to go ....

    1. Fit the whole RPM kit as a package ... Yummo !!

    2. Fit it in stages if you like but in this order IMO ...

    a. Ride plate
    b. Trumpets
    c. Free flow air filter
    d. Intake grate and PPK ( must be done together)
    e. Free flow exhaust
    f. Impeller
    g. Sponsons

    Regards
    Anthony

  6. #6
    rxpfun's Avatar
    Join Date
    Nov 2005
    Location
    Panama City, FL
    Posts
    186

    Thumbs up

    thnx.....good info.

    Mick

  7. #7
    fx160's Avatar
    Join Date
    Nov 2005
    Location
    gold coast australia
    Posts
    2,409
    +1
    193

    Smile

    i have fitted the parts you are thinking of fitting
    and the ski definatly performs beter
    the one thing i would say though is it needs the prop to realy make it work
    i ride with 2 15f's both with mods and a msx140 with mods
    in top end runs the 15f's were able to slowly walk away one more than the other and i would stay with or creep away from the msx
    after adding the free flow filter ,exhaust and trumpets
    the i am able to keep up with one of the 15f's , the other is an 06 and seems to be a good one because after a few mods he is now able to walk away from all of us
    these runs are at any time of our ride full tanks or near empty
    we have also raced for more that 10 k's all staying neck and neck
    previously i would have slowly droped back
    i will fit the prop soon and then we will see how the 15 that gets away goes

    kev

    ps the mods to the 15f's include ride plates,grates,impellers,free flow exhausts and freeflow intake
    the 15 that is fastest also has had the pump machined round(they are not that good from the factory)and the impeller machined for a very tight clearance(3 thou)

  8. #8
    flyboy's Avatar
    Join Date
    Nov 2005
    Location
    Destin, FL
    Posts
    1,585

    Thumbs up

    have a friend in fort walton with the full kit, his GPS numbers are betwen 64.5-65.5

    He likes it a lot,

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 2004 fx cruiser HO new owner
    By polaris on fire in forum Yamaha Open Discussion
    Replies: 6
    Last Post: 03-25-2016, 10:28 AM
  2. 2005 FX Cruiser cavitation (Impeller ana Jetpump housing replace)...2nd owner
    By troy2003 in forum Yamaha PWC Performance (4-stroke)
    Replies: 9
    Last Post: 04-04-2013, 08:27 AM
  3. Question from a new owner '07 FX cruiser HO
    By Nick18 in forum Yamaha PWC Performance (4-stroke)
    Replies: 8
    Last Post: 05-11-2012, 08:58 PM
  4. Fx Cruiser Water in hull - always
    By mdilabs in forum Yamaha Open Discussion
    Replies: 1
    Last Post: 05-25-2007, 10:41 PM
  5. Yamaha FX Cruiser seats
    By Kinchyle in forum Sea Doo Open Discussion
    Replies: 8
    Last Post: 07-18-2006, 11:43 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •