Results 1 to 7 of 7
  1. #1

    Join Date
    Aug 2006
    Location
    Homer Glen Il.
    Posts
    8,702
    +1
    109

    Skat Trak Pump Nozzles ???

    How do you confirm what size nozzle you need it's on a 785 with a six vane stator 12/17 prop theres a 84 in there now i have 81,82,83 ,86 and an 87 which one should i use .i'm running about 63.3 on a gps at 7950-8000 rpms . i would like more top speed


  2. #2
    Moderator beerdart's Avatar
    Join Date
    Aug 2006
    Location
    CT
    Posts
    25,929
    +1
    1,407
    Go down to 83 to reduce the rpms and kick up the speed.

  3. #3

    Join Date
    Aug 2006
    Location
    Homer Glen Il.
    Posts
    8,702
    +1
    109
    but i like rpm's , how about adding the 7 vane stator with a 11/19 or the 6 vane with the 11/19

  4. #4
    Moderator beerdart's Avatar
    Join Date
    Aug 2006
    Location
    CT
    Posts
    25,929
    +1
    1,407
    Give it a shot and see what it does.

  5. #5

    Join Date
    Aug 2006
    Location
    Homer Glen Il.
    Posts
    8,702
    +1
    109
    Steve what was the stock nozzle size i'm still trying to tune it also

  6. #6
    Moderator beerdart's Avatar
    Join Date
    Aug 2006
    Location
    CT
    Posts
    25,929
    +1
    1,407
    84mm stock.

  7. #7
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,330
    +1
    31
    Before switching pumps and impellers, try the smaller nozzles first and see how much RPM does drop. Much easier to test before swapping pitches and pumps. Just my take.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Skat-Trak Adjusta-Nozzle
    By beerdart in forum Polaris PWC Performance
    Replies: 45
    Last Post: 04-11-2007, 11:44 PM
  2. rotax VS skat-trak pumps
    By JCM in forum 4-Tec Performance
    Replies: 0
    Last Post: 11-05-2006, 06:35 AM
  3. 14 vein skat trak pump
    By washo6o4 in forum Yamaha PWC Performance (2-stroke)
    Replies: 25
    Last Post: 11-02-2006, 04:40 AM
  4. skat trak pump nozzle
    By rancarts in forum 4-Tec Performance
    Replies: 14
    Last Post: 12-28-2005, 05:50 PM
  5. Skat-trak pump mod
    By nitro rxp in forum 4-Tec Performance
    Replies: 6
    Last Post: 06-04-2005, 09:00 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
  •