Results 1 to 10 of 10
  1. #1

    Rotax Racing Light Weight Crank Gear (Cons)

    Are there any negative effects if I install this lighter flywheel?


  2. #2
    Stockrxp's Avatar
    Join Date
    Aug 2010
    Location
    texas
    Posts
    1,009
    +1
    1
    Lighter wallet

  3. #3
    Stockrxp's Avatar
    Join Date
    Aug 2010
    Location
    texas
    Posts
    1,009
    +1
    1
    Slow 91 will machine one for you

  4. #4
    www.eastcoastpwc.net Scott's Avatar
    Join Date
    Jul 2007
    Location
    NJ
    Posts
    7,992
    +1
    455
    Quote Originally Posted by Stockrxp View Post
    Slow 91 will machine one for you
    Oh ya?

  5. #5
    Fast & Loud meeper's Avatar
    Join Date
    Jul 2005
    Location
    West Grove, PA
    Posts
    5,019
    +1
    54
    personally i like the rotating mass especially if you ride in choppy water, helps you keep speed

  6. #6
    Stockrxp's Avatar
    Join Date
    Aug 2010
    Location
    texas
    Posts
    1,009
    +1
    1
    Quote Originally Posted by Scott View Post
    Oh ya?
    Yes I believe he is getting 125 for the service

  7. #7
    Sayers's Avatar
    Join Date
    Jul 2010
    Location
    Melbourne AUS
    Posts
    2,300
    +1
    134
    Quote Originally Posted by joecbrzx View Post
    Are there any negative effects if I install this lighter flywheel?
    With your current mods

    2009 RXP X: MOD's: Riva XX, RIVA Performance Power Filter Kit, Riva rear exhaust, Solas 15/22R, Riva Pro-Series Reduction Nozzle 83mm, RIVA Pro-Series OPAS Kit, RIVA Pro-Series Sponsons, RIVA Intake Manifold Upgrade Kit, RIVA Intercooler Upgrade Kit, Riva RRFPR, Bosch Injectors 48's, RIVA Thermostat Kit, Riva 2-degree Pump Wedge, R&D intake Grate, Filled Ride Plate holes, Fizzle catch can,

    why would you bother?
    Unless your planning to up the RPM/ HP and also lighten all the other usual item?!

  8. #8
    oz_speed's Avatar
    Join Date
    Feb 2011
    Location
    United Kingdom
    Posts
    371
    +1
    1
    A lower rotating mass will give you less streets on engine, better for high RPM, faster pick up out of the hole and generally better acceleration.

    You will suffer from a uneven running idle, you may find the engine stalls which is something you don't suffer now.

    I know some drag and cc racers do this but rec use I would not bother.

  9. #9
    R88ory RXP's Avatar
    Join Date
    Feb 2008
    Location
    Kent, England
    Posts
    2,737
    +1
    46
    As above, if you ride choppy conditions, the extra mass can yield better speeds as the motor slows less when re hooking due to the mass not wanting to slow.

    Lightened engines are for when you have no further performace in any other conponent an need that tiny bit extra.

    R88

  10. #10
    This is what I was looking for, Thanks!

    Quote Originally Posted by oz_speed View Post
    A lower rotating mass will give you less streets on engine, allow for RPM, faster pick up out of the hole and generally better acceleration.

    You will suffer from a uneven running idle, you may find the engine stalls which is something you don't suffer now.

    I know some drag and cc racers do this but rec use I would not bother.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. FS Rotax racing light weight cam gears
    By seadoo02xp in forum Sea Doo Classifieds
    Replies: 7
    Last Post: 11-25-2014, 04:14 PM
  2. FS Rotax Racing light weight retainers
    By TheDome in forum Sea Doo Classifieds
    Replies: 5
    Last Post: 02-23-2011, 08:34 PM
  3. WTB 04 SEADOO CAM (28) and Rotax Light Weight cam gear
    By Slow 91 in forum Sea Doo Classifieds
    Replies: 0
    Last Post: 10-14-2010, 04:00 PM
  4. FS Rotax racing light weight counter balancer
    By mitch411RXP in forum Sea Doo Classifieds
    Replies: 2
    Last Post: 01-13-2010, 08:01 AM
  5. SpeedFreeks Racing Light Weight RXP Top Deck
    By SpeedFreeks Racing in forum 4-Tec Performance
    Replies: 41
    Last Post: 12-21-2009, 03:19 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
  •