Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 21
  1. #1
    Norwegian Wiking Trond's Avatar
    Join Date
    Nov 2007
    Location
    Norway, Kristiansand
    Posts
    1,456

    My custom 81mm nozzle, It's finnish!!

    Because the RR reduction nozzle kit in Norway cost 800$, I decide to make my own

    I grinded the inside of the nozzle to make it 84,7mm, and pressed in a allu-tub that messures 85mm on the outside and 80mm on the inside. A put the allu-tub in the freezer, and the nozzle in the oven at 100Celsius. And after 1 hour a carefully knocked in place.
    Now it only needs a bit grinding to macth perfektly. The nozzle is now 80mm, but I will grind it down to 81mm...










    Last edited by Trond; 11-24-2007 at 08:04 AM. Reason: To edit the title


  2. #2
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    Nice Job. You might want to consider putting two small set screws in each side though to keep from losing it..there is alot of pressure back there and once it wams up things have a tendancy to expand and come loose..Hate to see all that hard work lost in the bottom of river or lake

  3. #3
    Norwegian Wiking Trond's Avatar
    Join Date
    Nov 2007
    Location
    Norway, Kristiansand
    Posts
    1,456
    I had the set screws in my mind, but thanks for the tip

    What do you think about leaving the extra length of the nozzle (10mm)??

  4. #4
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    I dont know enough about them that way BUT Accually the more I think about it i would probley make it flush cause your gonna need that water to expand a little for the steering nozzle..Have you had your steering nozzle on yet??does it touch?? If it were Me i would cut it..
    Last edited by Snoman; 11-22-2007 at 09:13 PM.

  5. #5
    Norwegian Wiking Trond's Avatar
    Join Date
    Nov 2007
    Location
    Norway, Kristiansand
    Posts
    1,456
    No I haven't tried the steering yet. I'll try that tomorrow. With the longer nozzle I would expect the waterflow to be in a more straight line, and give me some more trust... I don't think there will be any problems with steering the ski.

  6. #6
    Dave Sharp dav_dman's Avatar
    Join Date
    Aug 2005
    Location
    louisville Ky/so. IN
    Posts
    1,453
    +1
    1
    i like the length..might get the nose up a teensy more..

  7. #7
    GTXX's Avatar
    Join Date
    Jan 2006
    Location
    NW, GA
    Posts
    1,776
    I've been thinking of doing the same thing to a spare nozzle and TIG welding the insert. Rumor has it that the nozzle ID can be reduced by 1mm with a dozen coats of paint.

  8. #8
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    Quote Originally Posted by Trond View Post
    No I haven't tried the steering yet. I'll try that tomorrow. With the longer nozzle I would expect the waterflow to be in a more straight line, and give me some more trust... I don't think there will be any problems with steering the ski.
    My concern would be the steering nozzle hitting it while making hard turns.But should be OK..As Far as the thrust I Know what your thinking i just dont know how much if any its gonna give ya

    Quote Originally Posted by dav_dman View Post
    i like the length..might get the nose up a teensy more..
    Dont think it will get the nose up any higher being the water still has to go through the steering nozzle

  9. #9
    Norwegian Wiking Trond's Avatar
    Join Date
    Nov 2007
    Location
    Norway, Kristiansand
    Posts
    1,456
    But when your not turning, the water almost doesn't touch the steering nozzle...

    If it gives me anything, it'll probebly be be almost nothing, but everything helps. The ski is a stage 2++

  10. #10
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    Never know till ya try

    What kinda speeds you runnin with your ski??

Page 1 of 3 1 2 3 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Setup for 81mm Nozzle
    By The Bandit in forum 4-Tec Performance
    Replies: 8
    Last Post: 04-22-2007, 06:41 PM
  2. My Custom Air Intake
    By JFizzleJR in forum 4-Tec Performance
    Replies: 23
    Last Post: 04-07-2007, 07:36 PM
  3. My custom exhaust tip and riva seat cover
    By HoopsRXT in forum Sea Doo Open Discussion
    Replies: 14
    Last Post: 12-12-2006, 11:30 PM
  4. custom steering nozzle
    By SUCKMYWAKE in forum Yamaha PWC Performance (2-stroke)
    Replies: 12
    Last Post: 09-26-2006, 11:28 AM
  5. Finished my customizing, almost
    By wavehummer in forum Sea Doo Open Discussion
    Replies: 7
    Last Post: 09-12-2006, 11:42 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
  •