Page 1 of 2 1 2 LastLast
Results 1 to 10 of 20
  1. #1
    Chrisrokc's Avatar
    Join Date
    Apr 2006
    Location
    Oklahoma City, OK
    Posts
    3,667

    14/20 Dynafly SETBACK!

    Anyone using this? I saw it on Islandracings web site. I havent heard any talk about it so I thought I would set up a discussion about it.


  2. #2
    MR. SCOVILLE UNIT SUCKMYWAKE's Avatar
    Join Date
    Aug 2005
    Location
    ASTON, PENNSYLVANIA
    Posts
    2,836
    +1
    8
    leave the washer out

  3. #3
    what is the benefit of having a setback impellar? Would I benefit from this? I am running an out of the box DF 14/20 on my 05 GPR. Any info???

    thanks

  4. #4
    YudLuz2's Avatar
    Join Date
    Jun 2005
    Location
    Flowood MS
    Posts
    1,646
    +1
    110
    Don't leave the washer off, you probably will never get the
    prop off the shaft again. Set the prop back by letting someone
    machine the prop. You will see a gain in hook up and speed.

  5. #5
    sleeplessnMS's Avatar
    Join Date
    Mar 2006
    Location
    Waveland,MS
    Posts
    1,943
    I'm getting my prop bent @ IMPROS as we speek but no setback....

  6. #6
    Moderator Insanediego Joe's Avatar
    Join Date
    Mar 2006
    Location
    San Diego, California, United States
    Posts
    5,885
    +1
    142
    I am using a 15/22 dynafly setback on the project ski. Still under pitched. Sending back to impros for a repitch to 16/24. It pulls like a frikkin frieght train.

  7. #7
    Me Hahn and Joe H204YOU's Avatar
    Join Date
    Jan 2006
    Location
    Panama City Beach Florida
    Posts
    1,535
    Chris,a set-back is going to give you a slight bit better hole shot and will add to loading the pump which in turn will drop your rpms which you dont need till we get the hull freed up.I have a Nu-jet 21.5 Pro with all the Island mods including setback you could try if I thought it would help,but I'd really like to set your nozzle and test some adjustments.I tested my angle modded stock plate yesterday with no holes filled and 1/2 tank of fuel and hit 71 consistantly on a basically stock 1200 with lots of tuning left.

  8. #8
    Chrisrokc's Avatar
    Join Date
    Apr 2006
    Location
    Oklahoma City, OK
    Posts
    3,667
    Nice numbers Steve! Yea I wasn't really thinking about doing the setback. I don't figure the gain would be worth the money.

    Things in the works are

    Fixing what ever the grimlin is!
    VF3's
    Head Possibly

  9. #9
    Me Hahn and Joe H204YOU's Avatar
    Join Date
    Jan 2006
    Location
    Panama City Beach Florida
    Posts
    1,535
    Thanks Chris,I was hitting a wall at 71 it was getting there easy but couldnt get another tenth no matter what.I vote for the V3's,and I have a spare 1300 head if you want to send it out with out being down.Gimme a call,we'll catch up!

  10. #10
    jdog800's Avatar
    Join Date
    Feb 2007
    Location
    Alexandria L.A.
    Posts
    812
    How far is that set back?

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Whats fastest you've run.. 14/20 dynafly
    By RUNWME in forum Yamaha PWC Performance (2-stroke)
    Replies: 91
    Last Post: 02-20-2016, 10:10 PM
  2. FS IR setback 14/20 Dynafly
    By ecpChris in forum Yamaha Classifieds
    Replies: 25
    Last Post: 05-16-2011, 11:45 AM
  3. Has anyone ever bent/ repitched a 14/20 dynafly?
    By onefastgp in forum Yamaha PWC Performance (2-stroke)
    Replies: 23
    Last Post: 10-18-2007, 06:18 PM
  4. 14/20 dynafly
    By bsmith45 in forum Yamaha How To & FAQs
    Replies: 8
    Last Post: 08-22-2007, 04:30 PM
  5. 14/20 Dynafly Re-Pitch
    By Chrisrokc in forum Yamaha PWC Performance (2-stroke)
    Replies: 25
    Last Post: 04-06-2007, 11:38 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
  •