Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15
  1. #1
    RipNSki's Avatar
    Join Date
    Jul 2008
    Location
    SE MN on the Mississippi River
    Posts
    734
    +1
    5

    RPM loss from a stock impeller on a 09 P-X to a 15/22R

    Purchased a 15/22 from Meepers (thanks man, just as advertised, new in box) I do 8200 rpm with the stock impeller (@ 100 less in the heat) Just wondering how much I would lose if I install the 15/22.. Would I still go faster if the 22 does say 7800 or so??? I am only looking for top speed... HOW MUCH LESS R'S WILL I TURN THE 15/22 ???
    Ripper


  2. #2
    Having Fun jp1300r's Avatar
    Join Date
    Sep 2005
    Location
    Florida
    Posts
    5,334
    +1
    261
    It will feel like a dog, if it tops out at 7800 rpm. I think you will be okay if running a 87mm nozzle. New in box the 15/22 usually are about 14/21 and need a little work to even out the blades.

  3. #3
    RipNSki's Avatar
    Join Date
    Jul 2008
    Location
    SE MN on the Mississippi River
    Posts
    734
    +1
    5
    How many Rpm's do you think I will lose???

  4. #4
    RipNSki's Avatar
    Join Date
    Jul 2008
    Location
    SE MN on the Mississippi River
    Posts
    734
    +1
    5
    Let's just say I do 8200 right now with my set up and a stock prop... How much would I lose??? 100 - 200 ??? Also what would be the best next mod to get my RPMs back up (cheapest mod)
    Thanks!
    Ripper

  5. #5
    Having Fun jp1300r's Avatar
    Join Date
    Sep 2005
    Location
    Florida
    Posts
    5,334
    +1
    261
    Quote Originally Posted by RipNSki View Post
    How many Rpm's do you think I will lose???
    You may not lose any. Hopefully you will be at about 8100. Thats about the best r's for speed and acceleration.

  6. #6
    RipNSki's Avatar
    Join Date
    Jul 2008
    Location
    SE MN on the Mississippi River
    Posts
    734
    +1
    5
    If I only lose about a 100 rpm's then I should go faster with it on right, (therotically anyway) more pitch at similiar RPM's = more speed...

    ripper

  7. #7
    Mod less, ride more! troyheb's Avatar
    Join Date
    Jul 2007
    Location
    Nederland, Texas
    Posts
    8,725
    +1
    1,267
    Quote Originally Posted by RipNSki View Post
    If I only lose about a 100 rpm's then I should go faster with it on right, (therotically anyway) more pitch at similiar RPM's = more speed...

    ripper
    Yes
    If you are turning 8200 now you are on the limiter.

  8. #8
    Eric Ocman's Avatar
    Join Date
    Aug 2008
    Location
    Cataula, Georgia, United States
    Posts
    4,700
    +1
    77
    I dropped like 50 to maybe 100 when I swapped to an out of the box 15/22r

  9. #9
    RipNSki's Avatar
    Join Date
    Jul 2008
    Location
    SE MN on the Mississippi River
    Posts
    734
    +1
    5
    How much of a speed gain did you see with the 15/22 over the stock impeller???

  10. #10
    RipNSki's Avatar
    Join Date
    Jul 2008
    Location
    SE MN on the Mississippi River
    Posts
    734
    +1
    5
    Any ideas on speed gain I will see going to the 15/22R over the stock impeller at say 8000 rpms??? Anyone???

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. What's the prop pitch on the stock impeller on the Ultra 300?
    By jetdave56 in forum Kawasaki PWC Performance (4-stroke)
    Replies: 7
    Last Post: 09-27-2014, 09:21 AM
  2. Replies: 1
    Last Post: 04-23-2012, 09:01 AM
  3. Stock supercharger on a 06 rxp compared to the x charger
    By brandon0551 in forum 4-Tec Performance
    Replies: 0
    Last Post: 06-02-2011, 10:15 AM
  4. Stock boost on a 09 FX cruiser SHO
    By StoneyPete in forum Yamaha Open Discussion
    Replies: 3
    Last Post: 04-05-2010, 11:44 AM
  5. Upgrading from stock impeller to 14/21.5 skat, Washer ??
    By slow1300 in forum Yamaha PWC Performance (2-stroke)
    Replies: 2
    Last Post: 05-28-2006, 01:57 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
  •