Page 1 of 22 1 2 3 11 ... LastLast
Results 1 to 10 of 213
  1. #1
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
    Join Date
    Aug 2007
    Location
    Tampa Bay, FL
    Posts
    9,202
    +1
    673

    RRFPR... What are the options

    As the title states... who all makes rising rate regulators for 04-07 RXP's or more importantly... who makes the best one? I have not had any luck with my currently installed RRFPR... it will not increase fuel psi. when boost is applied... actually it drops 3 psi. at WOT My regulator has been replaced once already as well Any thoughts would be greatly appriciated


  2. #2
    What ski do you have?
    Which rrfpr do you have?
    How is it piped?
    Where are you sensing boost pressure?
    What do you set the base pressure at?

    On the rr regs, they work on spring pressure + boost pressure over fuel pressure. Unless you're sensing boost before the throttle body, or you're exceeding the limits of your fuel pump, the fuel pressure should not drop at wot.

    Mark

  3. #3
    Moderator beerdart's Avatar
    Join Date
    Aug 2006
    Location
    CT
    Posts
    25,929
    +1
    1,407
    Are you sure you are getting boost to the unit? The regulator is a simple device consisting of a diaphragm, poppet and a spring. What brand are you running? I know the Rude is made by Turbo Smart and is high quality.

  4. #4
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
    Join Date
    Aug 2007
    Location
    Tampa Bay, FL
    Posts
    9,202
    +1
    673
    Quote Originally Posted by Mark S View Post
    What ski do you have?
    Which rrfpr do you have?
    How is it piped?
    Where are you sensing boost pressure?
    What do you set the base pressure at?
    05 RXP
    Rude RRFPR
    Piped as instructed
    IC block off fitting beside my boost gauge transducer
    To make it live right now because its not increasing pressure... 72 psi. base. 69 psi at WOT.

  5. #5
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
    Join Date
    Aug 2007
    Location
    Tampa Bay, FL
    Posts
    9,202
    +1
    673
    Quote Originally Posted by beerdart View Post
    Are you sure you are getting boost to the unit? The regulator is a simple device consisting of a diaphragm, poppet and a spring. What brand are you running? I know the Rude is made by Turbo Smart and is high quality.
    Here's a pic
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSCF2270.JPG 
Views:	168 
Size:	2.44 MB 
ID:	117209  

  6. #6
    RUDE Work Very Well I'm Running One

  7. #7
    ROTAX RACING performance
    Join Date
    Apr 2005
    Location
    sweden
    Posts
    1,462
    +1
    17
    the problem are you , not the fuel pressure regulator .

    you should never increase the base pressure over 60 psi !

    Quote Originally Posted by bigdaddyRXP View Post
    05 RXP
    Rude RRFPR
    Piped as instructed
    IC block off fitting beside my boost gauge transducer
    To make it live right now because its not increasing pressure... 72 psi. base. 69 psi at WOT.

  8. #8
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
    Join Date
    Aug 2007
    Location
    Tampa Bay, FL
    Posts
    9,202
    +1
    673
    Quote Originally Posted by mrracing View Post
    the problem are you , not the fuel pressure regulator .

    you should never increase the base pressure over 60 psi !
    If I set it at 60 psi base... it will drop to 57 psi at WOT... in turn causing me to run lean as hell

    No matter where the base pressure is set... it will drop 3 psi at WOT!

  9. #9
    If I had to guess, I'd say you have a weak fuel pump. You can maintain pressure at lower volumes of fuel flow--part throttle. When you go wot the fuel pump can't supply enough volume of fuel flow to keep the pressure up. I have run your exact setup when I was initially testing and set my base pressure to 70#. The pressure did increase as boost increased.

    Mark

  10. #10
    formerly Gold06RXP Turbo Nick's Avatar
    Join Date
    May 2007
    Location
    Dayton, OH
    Posts
    2,095
    +1
    97
    Quote Originally Posted by mrracing View Post
    the problem are you , not the fuel pressure regulator .

    you should never increase the base pressure over 60 psi !
    Ya, that is set way to high!! Your fuel pump is already about maxed out at that PSI. Turn it down

Page 1 of 22 1 2 3 11 ... LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. What are the DO's & Dont's of keyway install
    By SpeedJunky in forum Yamaha PWC Performance (2-stroke)
    Replies: 19
    Last Post: 08-22-2007, 07:42 PM
  2. What are the current records of the fastest ski's??
    By Therock in forum 4-Tec Performance
    Replies: 14
    Last Post: 05-20-2007, 06:39 PM
  3. What are the sypmtoms of broken PCV Valve?
    By Hecyan in forum 4-Tec Performance
    Replies: 1
    Last Post: 01-21-2007, 10:43 PM
  4. What are the odds?
    By myth in forum Yamaha Open Discussion
    Replies: 11
    Last Post: 08-24-2006, 10:09 PM
  5. What are the two holes?
    By Larry L in forum Sea Doo Open Discussion
    Replies: 3
    Last Post: 07-13-2006, 09:43 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
  •