Results 1 to 7 of 7
  1. #1
    gordon lasiter #328's Avatar
    Join Date
    Aug 2008
    Location
    katy, texas , United States
    Posts
    1,647
    +1
    28

    155mm pump liner and prop vs. 160mm pump liner and prop?

    assuming that you have the same rpms with the 2 setups, what are the performance gains you get besides less cavitation with the 160mm liner and prop using the oem stator?
    i was thinking i should expect better acceloration and a higher top end?
    this is only achieved by keeping the rpms up with the correct pitched prop.
    bigger pump = more water flow?


  2. #2
    Live Fast wave15stx's Avatar
    Join Date
    May 2007
    Location
    new jersey
    Posts
    2,214
    +1
    32
    ...with the right setup you would think you can achieve a higher top speed if your pushing more water

  3. #3
    Boilerman Bill BPnta's Avatar
    Join Date
    Jun 2008
    Location
    Yulee, FL
    Posts
    887
    +1
    1
    I've lost a couple of MPH on top with the 160mm liner and stock pump.

    I'm running the RIVA B wheel, R1, and Riva I/C.

    155mm pump and 14/25 impeller - 8200 RPM's 79 mph GPS
    160mm liner, 14/16 impeller and stock stator/nozzle - 8200 RPMS's 75 GPS (+1or 2, water wasn't smooth)

    The cav is 100% gone and the holeshot seemed better but that's just my feelings as I don't have a way to accurately measure gains there. The 155mm pump just cavitated all over the place which I'm sure doesn't help holeshotting.

  4. #4
    Live Fast wave15stx's Avatar
    Join Date
    May 2007
    Location
    new jersey
    Posts
    2,214
    +1
    32
    Quote Originally Posted by BPnta View Post
    I've lost a couple of MPH on top with the 160mm liner and stock pump.

    I'm running the RIVA B wheel, R1, and Riva I/C.

    155mm pump and 14/25 impeller - 8200 RPM's 79 mph GPS
    160mm liner, 14/16 impeller and stock stator/nozzle - 8200 RPMS's 75 GPS (+1or 2, water wasn't smooth)

    The cav is 100% gone and the holeshot seemed better but that's just my feelings as I don't have a way to accurately measure gains there. The 155mm pump just cavitated all over the place which I'm sure doesn't help holeshotting.

    wow 14/16 prop? i would think ur rpms would b alot higher

  5. #5
    Bounty Hunter Carlos Thomas's Avatar
    Join Date
    Jul 2007
    Location
    San Leandro, CA
    Posts
    1,401
    +1
    22
    Has to be a typo.

  6. #6
    gordon lasiter #328's Avatar
    Join Date
    Aug 2008
    Location
    katy, texas , United States
    Posts
    1,647
    +1
    28
    Quote Originally Posted by wave15stx View Post
    wow 14/16 prop? i would think ur rpms would b alot higher
    that prop has a tall leading edge. which probably has something to do with his low rpms.
    i believe the r1 has a rev. limiter of 8450.

  7. #7
    Boilerman Bill BPnta's Avatar
    Join Date
    Jun 2008
    Location
    Yulee, FL
    Posts
    887
    +1
    1
    Yep, the 14/16 is correct.

    It was a 13/18 which for me had a blip of cav still and rpms ~7800. Had it repitched to 14/16. The 160mm impeller takes a lot of power to turn. Remember I'm using the B wheel which is RIVA's low boost wheel.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. kawasaki 148mm vs 155mm pump
    By Ninjamaster in forum Kawasaki Projects
    Replies: 0
    Last Post: 08-01-2014, 05:34 PM
  2. Replies: 7
    Last Post: 07-25-2014, 11:20 PM
  3. kawasaki 148mm vs 155mm pump
    By Ninjamaster in forum Yamaha PWC Performance (4-stroke)
    Replies: 3
    Last Post: 07-25-2014, 11:15 AM
  4. Holeshot - 155mm Twin prop vs 160mm
    By Jmfmk3 in forum Yamaha PWC Performance (4-stroke)
    Replies: 29
    Last Post: 10-09-2013, 05:21 PM
  5. SOLD 155mm pump parts and props
    By rangermtb5 in forum Yamaha Classifieds
    Replies: 40
    Last Post: 03-15-2012, 08:56 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
  •