Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15
  1. #1
    RXP rider's Avatar
    Join Date
    May 2010
    Location
    Northern Europe
    Posts
    125

    06 RXP only running stabil WITH a bov / running like shit without a bov.

    Hi

    I have a wired problem with my RXP. I just did some diffrents mods to the ski and now it runs like shit.

    I did a charger rebuilt, put on a new rear exhoust kit and removed the bov I have always used.

    Took the ski to the lake for testing. It starts up and idels very fine. But when I reach 3000 rpm the engine is running very rough and vibrates like hell. It feels like you have somthing stuck in the pump and it is shaking a lot and running unstabil. Shutted it off immediatley and got it home. Put on the bov that I have used for like two years now ( R&D / Bosch type ) and everything is back to normal. It runs stabil and smooth with the bov. Just to try I removed the bov again and the problem occures again.

    One of my freinds who is working with turbo cars told me that my intercooler maybe was clogged or too small. The pressure that the charger makes would get stuck between the charger and intercooler and try to slow down the charger. I tried to test however he was right or not by bypass the intercooler with the oem charger to TB hose. But it didnīt helped at all.

    I sat up the charger clutch to 16 Nm / 142 In Lbs if that matters anything.
    I am listing my mods below

    Rotax Racing ECU 8300 limiter
    Rotax racing 127 mm drop in wheel for 215 charger
    42 injectores
    4Ļ filter system
    External intercooler
    Riva valve train
    Rear exhoust system
    Worx grate
    15/22 Solas

    Do any of you guys have any clue on what could be wrong
    Thanks in advance and sorry for my bad language


  2. #2
    MSRXP's Avatar
    Join Date
    Sep 2010
    Location
    Central MS
    Posts
    5,448
    +1
    7
    Severe boost/air leak.

  3. #3
    RXP rider's Avatar
    Join Date
    May 2010
    Location
    Northern Europe
    Posts
    125
    You are thinking of the bov is leaking a lot or ..? I have tested all hoses, pipes and intercooler for leaks but there is none.

  4. #4
    MSRXP's Avatar
    Join Date
    Sep 2010
    Location
    Central MS
    Posts
    5,448
    +1
    7
    How is your BOV mounted to the piping?

  5. #5
    RXP rider's Avatar
    Join Date
    May 2010
    Location
    Northern Europe
    Posts
    125
    I made my own SS pipes for the intercooler. see pics.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	IMG_1170.jpg 
Views:	84 
Size:	94.1 KB 
ID:	251552   Click image for larger version. 

Name:	IMG_1173.jpg 
Views:	95 
Size:	130.7 KB 
ID:	251553  

  6. #6
    I don't know what a bov is but that LSU pix is awesome!

  7. #7
    Autism Speaks. Its Time To Listen gOt BoOsT's Avatar
    Join Date
    May 2011
    Location
    Cali
    Posts
    1,413
    +1
    51
    id guess you might be running super rich. if you bov spring is soft enough it could be open during idle which would improve a/f and help driveability. if it leaks under boost (plastic ones usually do) your a/f would be better also. once you remove the bov and seal the system it goes super rich and barely does anything...thats my $0.02. gL

  8. #8
    Autism Speaks. Its Time To Listen gOt BoOsT's Avatar
    Join Date
    May 2011
    Location
    Cali
    Posts
    1,413
    +1
    51
    unless your not capping off the flange for the bov when you remove it...in that case your running hella lean and gonna go boom.

  9. #9
    RXP rider's Avatar
    Join Date
    May 2010
    Location
    Northern Europe
    Posts
    125
    I know for sure I donīt run either rich or lean I see similar numbers as I can read from others with the same setup.
    I turned a plug to the bov hole so thats definitely not the issue.

  10. #10
    GGG's Avatar
    Join Date
    Sep 2009
    Location
    Jersey Shore
    Posts
    2,830
    +1
    258
    Do you get to full RPM with the BOV connected?

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. 06 rxp with riva mods running too hot? When to switch to open loop?
    By Full Throttle Marine in forum 4-Tec Performance
    Replies: 4
    Last Post: 03-10-2016, 10:04 PM
  2. Replies: 15
    Last Post: 03-05-2014, 01:05 PM
  3. Replies: 14
    Last Post: 11-25-2013, 02:44 PM
  4. 2003 rxp only running o one cylinder
    By rxpkiller13 in forum 4-Tec Performance
    Replies: 2
    Last Post: 08-29-2010, 03:46 PM
  5. FS 06 rxp/rxt jet pump with stock prop and liner
    By speedskixp in forum Sea Doo Classifieds
    Replies: 1
    Last Post: 09-28-2009, 10:30 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
  •