Page 1 of 3 123 LastLast
Results 1 to 10 of 21
  1. #1
    SLASHER's Avatar
    Join Date
    Jun 2007
    Location
    Australia, Perth WA
    Posts
    3,261
    +1
    476

    Seadoo Lucky 13 cone users gurus

    Ok , I need some advise ..

    I am about to install a lucky 13 cone to my turbo RXTX S3 , is there a formula to how many rpm each spacer drops ..

    need to drop 200-300 rpm , my prop already pitched and running stock 87 nozzle ..

    dont have red spacer ..


  2. #2
    captain slow Turbo Retro's Avatar
    Join Date
    Jun 2007
    Location
    Australia - perth
    Posts
    1,680
    +1
    165
    i have a red spacer.. depends on your nozzle ring etc with how the revs drop... have u installed it?? i would put the red spacer in first!!!

  3. #3
    SLASHER's Avatar
    Join Date
    Jun 2007
    Location
    Australia, Perth WA
    Posts
    3,261
    +1
    476
    Retro I work 5 days not part time retirement like u ...

    Ill grab the red ..


  4. #4
    Titan_Joe's Avatar
    Join Date
    Jan 2015
    Location
    Pottstown PA
    Posts
    852
    +1
    177
    I have a 2014 with 87mm nozzle. In my experience when adding spacers the rpms didn't drop much but the speed did

  5. #5
    SLASHER's Avatar
    Join Date
    Jun 2007
    Location
    Australia, Perth WA
    Posts
    3,261
    +1
    476
    Turbo will be different ..

  6. #6
    www.eastcoastpwc.net Scott's Avatar
    Join Date
    Jul 2007
    Location
    Friendswood, Texas
    Posts
    8,870
    +1
    625
    Quote Originally Posted by SLASHER View Post
    Turbo will be different ..
    I run no spacers using a 15/22r, riva pump and riva nozzle, revving to 9150

  7. #7
    AtoMIC_OraNGE greenbullet's Avatar
    Join Date
    Jul 2010
    Location
    Barrie / BuckHORN Ontario
    Posts
    2,510
    +1
    234
    Ok guys. Now try running the red and blue spacer .... Rpm will drop huge but then see how the ski is in the chop and mid range pull. Pitch your prop to get revs back and watch the speed climb. I'm seeing huge fuel economy difference with using the blue and red spacers together. I'm debating on trying them all and pitching the prop accordingly.
    Im running an 86-87 bored Venturi and my steering nozzle cleaned up a bit as well. The more efficient that pump runs the better it stays loaded in the chop

    little tip. Using this cone and spinning upwards of 9 k. A 15/19 ish or so bent blade is a good spot to start when using at least 2 spacers. Every ski is different so just saying. I've done a lot of different testing over the past week with this and the cone has amazed me
    you can get away with using a stock 83 mm Venturi on a lower 70 mph ski and see huge gains but that cone on a 80+ ski (83mm) Venturi is risking a stuff so the 86-87 mm is needed and adjust from there

  8. #8
    AtoMIC_OraNGE greenbullet's Avatar
    Join Date
    Jul 2010
    Location
    Barrie / BuckHORN Ontario
    Posts
    2,510
    +1
    234
    Quote Originally Posted by SLASHER View Post
    Ok , I need some advise ..

    I am about to install a lucky 13 cone to my turbo RXTX S3 , is there a formula to how many rpm each spacer drops ..

    need to drop 200-300 rpm , my prop already pitched and running stock 87 nozzle ..

    dont have red spacer ..

    use blue and yellow spacer with 87 Venturi that's good for About 350 drop or get a red. It will drop about 200

  9. #9
    SLASHER's Avatar
    Join Date
    Jun 2007
    Location
    Australia, Perth WA
    Posts
    3,261
    +1
    476
    Ok thanks , I just needed a base line to start with ..

    I'll grab Retro s Red spacer and hope for a 200 rpm drop which will be perfect .

    Thanks for the help guys ...

  10. #10
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,560
    +1
    854
    Quote Originally Posted by greenbullet View Post
    but that cone on a 80+ ski (83mm) Venturi is risking a stuff so the 86-87 mm is needed and adjust from there
    Ive got an 85 mm nozzle ring for mine,you think i should go 86 instead???Im only planning on turning 8600 though....Whats your thoughts brother??

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. lucky 13 cone on a conversion with a seadoo pump
    By Steve-m31164 in forum Conversion PWC Performance Skis
    Replies: 13
    Last Post: 12-19-2015, 07:22 PM
  2. lucky 13 cone, conversion, and seadoo pump?
    By kenlepack in forum Conversion PWC Performance Skis
    Replies: 0
    Last Post: 11-03-2014, 01:52 PM
  3. SOLD Riva Racing pump with Skat Twin & Lucky 13 cone
    By WP3223 in forum Yamaha Classifieds
    Replies: 11
    Last Post: 08-31-2014, 05:41 PM
  4. SOLD Lucky 13 cone for riva and yamaha oem pump
    By YudLuz2 in forum Yamaha Classifieds
    Replies: 3
    Last Post: 04-21-2014, 12:20 PM
  5. SOLD Riva Racing pump with Skat Twin & Lucky 13 cone
    By Gus13letter in forum Yamaha Classifieds
    Replies: 9
    Last Post: 02-28-2014, 12:04 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
  •