Page 1 of 5 1 2 3 ... LastLast
Results 1 to 10 of 47
  1. #1
    hsdforever's Avatar
    Join Date
    Apr 2007
    Location
    French west indies
    Posts
    167

    Upgrade a Stx 15F

    Hello,
    Are I have Stx15f 2007, which the best sponsons OFFSHORE for this jet ?
    I thought of taking the R&D, that think about it ?
    I seek to plate (scotch ?) the jet in wave, I don't make salom, I have the origin ride-plate and a WEDGE PUMP 2°.
    Thank you
    sorry for my english, i'm french...


  2. #2
    Riva Sponsons work good.
    Beach House or R&D should work well also.

  3. #3
    hsdforever's Avatar
    Join Date
    Apr 2007
    Location
    French west indies
    Posts
    167
    OK, i buy the R&D, i think there are more efficiency in offshore use than riva's model...

    test in two week

    If i want to change the impeller ? wich one is the best for a stock 15F ? R&d préconise a SOLAS 13/19 bet RIVA in teh RPM kit prefer a 14/21...

    anyone have expérience ? thanks for help !

  4. #4
    For stock a 13/19 would be good.
    A 14/21 would be too much without all of the other upgrades to go with it. I would contact Impros. They can custom make something suited for any need.
    http://www.impros.com/

  5. #5
    hsdforever's Avatar
    Join Date
    Apr 2007
    Location
    French west indies
    Posts
    167
    Thanks for your answer

    the original impeller is a 13/19, i don't think it really intérresting to put a SOLAS 13/19....

    I have the R&D OEM air filter + primary water box modifie (like RIVA recommand). A dealer préconise 2° advance with the 14/20...

    In two week, test the R&D sponson, after, i look for a impeller...

  6. #6
    I just had Impros repitch one to a 13/20. They say this works good. I'll test it out and post results.

  7. #7
    From what I can understand, you are trying to set the pwc up to jump waves.

    Yes, no ?

    If no, what type of riding are you trying to do ?

  8. #8
    hsdforever's Avatar
    Join Date
    Apr 2007
    Location
    French west indies
    Posts
    167
    Yes, and i buy a 2° WEDGE PUMP for this.

    I ride offshore at 90% in french west indies (Martinique), for this reason, i buy R&D SPONSON to calm down the jet and get more speed in offshore wave.

    The wedge pump give me more speed but is not enough. I search modification to get more speed like a impeller...

    A SOLAS 14/21 for exemple, but a dealer préconise 2° advance with the 14/20...
    I don't have the RPM kit of RIVA but I have :
    - Air filter
    - Primery water box modifie
    - R&D sponson
    - Wedge Pump 2°

    The RPm have FREE-FLOW (i don't have it, i don't want to trow my secondary waterbox.... to noisy...), RIDE PLATE R&D and AQUAVEIN INTAKE GRATE (i have the stock RIDE PLATE and INTAKE GRATE)

    Can i put a 14/20 or 14/21 impeller ?

  9. #9

    Join Date
    Sep 2006
    Location
    elk grove ca
    Posts
    36
    .

    i have a 05 15f after much debate i decided to purchase the rpm kit with the 14/21 prop i am doing the waterbox mod and all involved it will be done this week and out for a test drive next week i will report back with my findings. i did not want to do the timing advance as i really dont want to mess with the motor to much. everything i read said dont goto the 14/21 unless you do all of the mods or your ski will not perform so that is why i decided to do the complete kit i do not have a wedge thou as i ride in pretty flat water in the rivers and lakes in our area .



    I ride offshore at 90% in french west indies (Martinique), for this reason, i buy R&D SPONSON to calm down the jet and get more speed in offshore wave.

    The wedge pump give me more speed but is not enough. I search modification to get more speed like a impeller...

    A SOLAS 14/21 for exemple, but a dealer préconise 2° advance with the 14/20...
    I don't have the RPM kit of RIVA but I have :
    - Air filter
    - Primery water box modifie
    - R&D sponson
    - Wedge Pump 2°

    The RPm have FREE-FLOW (i don't have it, i don't want to trow my secondary waterbox.... to noisy...), RIDE PLATE R&D and AQUAVEIN INTAKE GRATE (i have the stock RIDE PLATE and INTAKE GRATE)

    Can i put a 14/20 or 14/21 impeller ?[/quote]

  10. #10
    ive got the RPM kit on mine and it really did make a difference the speedo used to read 63mph as standard now it reads 70mph with over half tank of fuel will post GPS readings when i get a chance to test it with the gps
    ive got 2 mods still to do which are fit an adjust a thrust and fit the 1mm bored out exit nozzle

    mods to mine now are
    full riva rpm kit with water box mod
    ride plate sanded and holes filled
    rogue jet heat barrier
    mirror block off kit

Page 1 of 5 1 2 3 ... LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. FS Upgrade your STX to a STX 15F
    By mirror in forum Kawasaki Classifieds
    Replies: 0
    Last Post: 05-19-2011, 03:00 PM
  2. FS 2005 stx 15f camshafts ULTRA UPGRADE
    By smokeysevin in forum Kawasaki Classifieds
    Replies: 7
    Last Post: 01-03-2010, 02:22 PM
  3. stx 15f upgrade modifications
    By coldspace in forum Kawasaki PWC Performance (4-stroke)
    Replies: 8
    Last Post: 03-22-2009, 05:25 AM
  4. stock machines rxp vs. stx-15f
    By scattass in forum Sea Doo Open Discussion
    Replies: 18
    Last Post: 08-31-2005, 02:14 AM
  5. 2006 Kawi STX 15F Supercharged patent info
    By Enufpwr in forum Sea Doo Open Discussion
    Replies: 15
    Last Post: 08-29-2005, 09:31 PM

Posting Permissions

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