Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15

Thread: RXT X Mods

  1. #1
    I hate things that don't work! SearayEX12's Avatar
    Join Date
    Aug 2006
    Location
    Alexandria Bay, NY
    Posts
    526

    RXT X Mods

    If I were to just put the riva intake grate on, the riva power filter, and fill ride plate holes. Do I need to change the impeller because of the higher RPMs or would I still see the 3 to 4 mph gain without needing the impeller.


  2. #2
    MPower's Avatar
    Join Date
    May 2005
    Location
    Raleigh, NC
    Posts
    3,338
    +1
    121
    Yes, with the increased air you will gain RPM and be all over the limiter. You need the prop RIVA is coming out with too.

  3. #3
    Avion3333's Avatar
    Join Date
    Dec 2007
    Location
    Cayman Islands
    Posts
    686
    Quote Originally Posted by MPower View Post
    Yes, with the increased air you will gain RPM and be all over the limiter. You need the prop RIVA is coming out with too.
    is that part of the stage 2 package or seperate

  4. #4
    I hate things that don't work! SearayEX12's Avatar
    Join Date
    Aug 2006
    Location
    Alexandria Bay, NY
    Posts
    526
    Thanks for the respones, but two other things. Do I need to adjustable nozzle as well? Also will a riva BOV fit onto the X skis?

  5. #5
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
    Posts
    36,398
    +1
    2,524
    Quote Originally Posted by Avion3333 View Post
    is that part of the stage 2 package or seperate
    The 15/22 impeller is part of the stage 1 package.
    http://www.4-tecperformance.com/inde...ex&cPath=18_81

  6. #6
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
    Posts
    36,398
    +1
    2,524
    Quote Originally Posted by SearayEX12 View Post
    Thanks for the respones, but two other things. Do I need to adjustable nozzle as well? Also will a riva BOV fit onto the X skis?
    The adjustable venturi is always a great idea on a performance ski. Riva will be introducing an intercooler relocation kit that will utilize a BOV and mandrel bent aluminum plumbing.

    The relocation kit will also allow you to use the RXP rear air intake and Riva's thru hull exhaust kit.

  7. #7
    I hate things that don't work! SearayEX12's Avatar
    Join Date
    Aug 2006
    Location
    Alexandria Bay, NY
    Posts
    526
    You guys have been really helpful, just one last question to pick your brains. Will the SS wear ring fit on an RXTX?

  8. #8
    I hate things that don't work! SearayEX12's Avatar
    Join Date
    Aug 2006
    Location
    Alexandria Bay, NY
    Posts
    526
    Hi guys. I feel like I've been a nag, but I am really new to modding sea doos. It is my understanding that the adjustable venturi with the riva stage 1 kit will slow down acceleration? If I wanted to do all of stage 1 without the venturi so I can keep the acceleration, what kind of speed gains to expect me to achieve?

  9. #9

    Join Date
    Jul 2007
    Location
    Montgomery, AL
    Posts
    257
    +1
    1
    The stock venturi is 87mm, a larger venturi will give you more acceration, RPM's and less top end. The adjustable venturi in the stage one kit has 81mm, 82mm and 83mm rings. I would think that you would be on the limiter with the solas prop and a 87mm venturi if that was the only thing to consider. The grate and power filter in the stage one kit are going to increase the rpms some and the smaller venturi will decrese the rpm's some. It would be hard to say that it will work with just a prop and grate without testing especially since neather parts are available yet.

    Having said that, the solas props usually have better hole shot and acceleration than the stock props. I am sure once the parts are available some one will try just the prop and grate but in my opinion the adjustable venturi will be needed to keep the R's down.
    Last edited by Bama; 02-22-2008 at 02:37 PM.

  10. #10
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Location
    Morgan City, LA
    Posts
    36,398
    +1
    2,524
    Quote Originally Posted by SearayEX12 View Post
    You guys have been really helpful, just one last question to pick your brains. Will the SS wear ring fit on an RXTX?
    yes

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. RXT w/ mods 1st ride
    By Foggy in forum 4-Tec Performance
    Replies: 11
    Last Post: 04-21-2008, 12:26 AM
  2. RXT Riva Mods QUESTIONS...
    By YoYamma in forum 4-Tec Performance
    Replies: 82
    Last Post: 11-16-2007, 02:50 PM
  3. First GPS run with 2007 RXT and mods....
    By Fatty in forum 4-Tec Performance
    Replies: 6
    Last Post: 10-29-2007, 12:44 PM
  4. My top speed; RXT light mods
    By 2006 RXT in forum 4-Tec Performance
    Replies: 21
    Last Post: 09-23-2007, 08:45 PM
  5. 2006 rxt first mod
    By marcovit in forum 4-Tec Performance
    Replies: 8
    Last Post: 05-11-2007, 12:29 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
  •