Results 1 to 9 of 9
  1. #1

    GPRSVHO pump setup advice

    I have a GPRSVHO 160mm pump stock 13/20 concord pulling 8750 @ 89mph
    I have a 6 vein 155mm pump which I'm curious to try as I see everyone else favours them. What would you guys expect the advantage to be if any?, I'm not concerned with holeshot too much.

  2. #2
    Adam's Avatar
    Join Date
    Aug 2005
    Location
    Australia
    Posts
    442
    +1
    24
    The 155mm pump will work but acceleration will be slower and top speed slower . The SVHO engine is more than powerful enough for the 160mm pump , don’t go backwards.
    I have a 158mm pump in my GP1200R , it’s faster in every measurable way than a stock 155mm pump .

  3. #3
    rxpredviper's Avatar
    Join Date
    Feb 2009
    Location
    WPB
    Posts
    2,343
    +1
    65
    155 pump with honda prop all u need ..

  4. #4

    Join Date
    May 2012
    Location
    California
    Posts
    1,952
    +1
    179
    Quote Originally Posted by rxpredviper View Post
    155 pump with honda prop all u need ..
    talk to me, what prop? how hard on the stator is it? I am killing my stator housing with a 15/24, I dont think i can force more water through it.

  5. #5
    Quote Originally Posted by Adam View Post
    The 155mm pump will work but acceleration will be slower and top speed slower . The SVHO engine is more than powerful enough for the 160mm pump , donít go backwards.
    I have a 158mm pump in my GP1200R , itís faster in every measurable way than a stock 155mm pump .
    That was what I was thinking... but have read on GH skis doing over 100mph running 155 so thinking there is something someone has proven with the 155? The theory says 170 is better all day.

  6. #6
    Have you tried a bigger pump vs your current setup? I don't have an impeller for the 155 pump yet so don't want to fork out unless it's a worth while experiment.
    Quote Originally Posted by rxpredviper View Post
    155 pump with honda prop all u need ..

  7. #7
    rxpredviper's Avatar
    Join Date
    Feb 2009
    Location
    WPB
    Posts
    2,343
    +1
    65
    Quote Originally Posted by Diegosan View Post
    Have you tried a bigger pump vs your current setup? I don't have an impeller for the 155 pump yet so don't want to fork out unless it's a worth while experiment.
    i did now i have a 17/29 at 9500 110+ with no problem

  8. #8
    rxpredviper's Avatar
    Join Date
    Feb 2009
    Location
    WPB
    Posts
    2,343
    +1
    65
    prop
    155 yamaha jet boat prop = 107mph nos
    155 12vain with 14/26 = 99.8mph NO nos
    155 honda prop 17/29 = 110 plus 9500rpm with nos and 103 mph 8680rpm wothout NOS

  9. +1 by:


  10. #9
    Quote Originally Posted by rxpredviper View Post
    prop
    155 yamaha jet boat prop = 107mph nos
    155 12vain with 14/26 = 99.8mph NO nos
    155 honda prop 17/29 = 110 plus 9500rpm with nos and 103 mph 8680rpm wothout NOS
    Insane speeds, I don't have the power you have but I see what your saying. Does the Honda impeller fit the Yamaha shaft?


Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Gprsvho cracked deck/hull please help!
    By HuntersGprsvho in forum Yamaha PWC Performance (4-stroke)
    Replies: 4
    Last Post: 07-24-2019, 02:27 PM
  2. Gprsvho seems to be in limp mode
    By HuntersGprsvho in forum Yamaha PWC Performance (4-stroke)
    Replies: 0
    Last Post: 11-04-2018, 02:56 PM
  3. Advice on setup
    By Rock918 in forum Yamaha PWC Performance (4-stroke)
    Replies: 5
    Last Post: 05-12-2015, 12:43 PM
  4. Advice on setup for FZS
    By gleson in forum Yamaha PWC Performance (4-stroke)
    Replies: 9
    Last Post: 07-10-2011, 10:11 PM
  5. Advice for my 1300r setup?
    By njgprider in forum Yamaha PWC Performance (2-stroke)
    Replies: 6
    Last Post: 05-13-2009, 07:16 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
  •