Results 1 to 8 of 8
  1. #1

    Join Date
    Jun 2006
    Location
    Highland lake , CT
    Posts
    161

    55 mph at 1/2 throttle same WOT??????

    IM FROM CONN, and my dads sportsster 215 has a problem or do all the boats do that ,WOT back off on it 1/2 way same speed 55. I put my 13/18 prop in it out of my rxp 7800rpms , want to go to 10/16 is this heard of ,need rpms??


  2. #2
    somefun's Avatar
    Join Date
    May 2006
    Location
    Orange CT
    Posts
    252
    That will not be enough trailing side pitch. That motor's red line (I think) is 8,000. One degree of pitch is about 300 rpm on the boats.

  3. #3

    Join Date
    Jun 2006
    Location
    Highland lake , CT
    Posts
    161
    what i cant figure out is at full throttle ,when you back of on it ,it takes 1/2 the throttle back before it slows down ,its pretty scary .do all the boats do this ????????

  4. #4
    Yuji's Avatar
    Join Date
    May 2005
    Location
    Prince Albert Saskatchewan, Canada
    Posts
    289
    Mine is the same way and I've tried adding some pitch to see if I could maintain the revs and gain mph but haven't had much luck...revs begin to drop but mph only increases a little bit. It's a real brain tickler but if we could see a big increase in acceleration and mph with that other half of throttle play...yeeeee haaaaa

  5. #5

    Join Date
    Jun 2006
    Location
    Highland lake , CT
    Posts
    161
    YUJI, I have a 14/19 solas and running 56.8 on gps at 7800 max,dad just pulled it out and i tweeked it 2.5 mm (decrease) hoping to see 8000 -8100 and some mph, waiting on 2.5 wedge . Got one problem ,step mom will not get back in the boat, i think he's addicted to speed..

  6. #6
    Yuji's Avatar
    Join Date
    May 2005
    Location
    Prince Albert Saskatchewan, Canada
    Posts
    289
    The solas sounds about the right pitch but 2.5mm may be a bit much, but I guess you won't know till you get out on the water Let us know how it goes

  7. #7
    HIGHLAND LAKE BOYS's Avatar
    Join Date
    May 2006
    Location
    Winsted, CT
    Posts
    126
    tell DAD to leave wife on shore will gain about 1MPH

  8. #8

    Join Date
    Jun 2006
    Location
    Highland lake , CT
    Posts
    161
    Quote Originally Posted by HIGHLAND LAKE BOYS
    tell DAD to leave wife on shore will gain about 1MPH
    Can we leave her at hoffmans landing??

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. SL650 Bogs at > 1/2 Throttle
    By StuZ654 in forum Polaris How To & FAQs
    Replies: 8
    Last Post: 08-19-2009, 10:27 PM
  2. 72.5 mph at 7200 RPM ?
    By MIARider in forum Yamaha PWC Performance (2-stroke)
    Replies: 26
    Last Post: 03-31-2008, 08:28 PM
  3. 96GTX-loss of power at near full throttle
    By dsandri in forum 2-Stroke Performance
    Replies: 8
    Last Post: 09-12-2007, 08:18 AM
  4. 69 MPH at only 3/4 Throttle
    By Antiguan FZR in forum 4-Tec Performance
    Replies: 0
    Last Post: 06-18-2007, 08:25 AM
  5. My stage 2 RXP, 75.5+mph at 7900 rpms, yahoo!
    By Vern in forum 4-Tec Performance
    Replies: 23
    Last Post: 06-21-2006, 11:10 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
  •