Results 1 to 4 of 4
  1. 05-12-2008, 05:07 PM #1
    VenomRXP
    VenomRXP is offline
    Join Date
    Aug 2006
    Posts
    134
    +1
    2

    Is this also sign of SC slippage?

    I have 2006 Speedster 200 430hp. on one of the engine I can clearly hear SC winning at throttle and engine sound is more stable, on the other one I do not get this (i think) normal sc noise, just engine, it gathers rmps slower then other, and it sounds to me different.
    so is this sign of SC slipping, boost leak or what?
    Reply With Quote Reply With Quote

  2. 05-12-2008, 07:41 PM #2
    Jeepster
    Jeepster is offline
    Jeepster's Avatar
    Join Date
    Jul 2007
    Location
    Quebec, Canada
    Posts
    758
    It Depends....what are the respective rpm's on both engines...?
    Reply With Quote Reply With Quote
  3. 05-12-2008, 08:06 PM #3
    VenomRXP
    VenomRXP is offline
    Join Date
    Aug 2006
    Posts
    134
    +1
    2
    not sure about rmps at WOT, but the thing that one engine falls behind in rmps gathering is definite, the one that doesnt have distinct SC noise gets to wot later...

    Quote Originally Posted by Jeepster View Post
    It Depends....what are the respective rpm's on both engines...?
    Reply With Quote Reply With Quote
  4. 05-12-2008, 08:45 PM #4
    lafjax
    lafjax is offline
    AKA: Larry lafjax's Avatar
    Join Date
    Jul 2006
    Location
    Jacksonville, Fl
    Posts
    3,031
    +1
    1
    Quote Originally Posted by VenomRXP View Post
    not sure about rmps at WOT, but the thing that one engine falls behind in rmps gathering is definite, the one that doesnt have distinct SC noise gets to wot later...
    Some sc whining is normal as the bearings wear. Sevier whining can be a sign of water or salt getting into the intake causing wear on the bearings. Also the sc dosen't make boost until 6000+ rpms. If one is slipping and one is not the engines may appear out of sync at wot...
    Reply With Quote Reply With Quote
« 10 hour service ? | 155 4-tec wot rpms »

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Is this the start of detonation
    By BLASTER 1 in forum Yamaha PWC Performance (4-stroke)
    Replies: 20
    Last Post: 09-30-2016, 07:10 PM
  2. Is this the future of jet skis ?
    By Impulses in forum Sea Doo Open Discussion
    Replies: 4
    Last Post: 12-31-2013, 10:36 AM
  3. What model is this seat off of
    By LaveyT in forum Polaris Open Discussion
    Replies: 3
    Last Post: 08-21-2012, 12:59 PM
  4. Is this the type of hull damage repaired by skim coating?
    By toyterrific in forum Yamaha PWC Performance (2-stroke)
    Replies: 4
    Last Post: 11-24-2010, 05:28 PM
  5. What kind of SC is this?
    By MSRXP in forum 4-Tec Performance
    Replies: 18
    Last Post: 11-22-2010, 12:21 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
  •  

Forum Rules