User Tag List

Page 1 of 5 1 2 3 4 5 LastLast
Results 1 to 15 of 65
  1. #1
    Join Date
    Sep 2017
    Location
    Miami
    Posts
    843
    Thanks (Given)
    30
    Thanks (Received)
    106
    Likes (Given)
    823
    Likes (Received)
    770
    Mentioned
    2 Post(s)
    Tagged
    1 Thread(s)

    Allison Grand Sport, Merc 150 gearcase mod

    Thought I'd share an update on our Allison with a stock Merc 150. We did an article a little while ago about gearcase design, and how to improve the pointy nosecones commonly seen on aftermarket cone kits. I modified ours, with just a file, and some sanding. I rounded out the tip, and re did the skeg to improve it. We gained 2 MPH, although we are now hitting the rev limiter, so possibly more. But just thought I'd share in case you wanted to try it.

    Article
    https://www.wavetowave.com/home/2019...cation-testing



    Last edited by WavetoWave; 12-02-2019 at 05:22 PM.

  2. Thanks SS Minnow thanked for this post
  3. #2
    Join Date
    Sep 2008
    Location
    louisville
    Posts
    185
    Thanks (Given)
    40
    Thanks (Received)
    17
    Likes (Given)
    445
    Likes (Received)
    91
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Is that grandsport for sale ? What year is it ? How much ?

  4. #3
    Join Date
    Sep 2017
    Location
    Miami
    Posts
    843
    Thanks (Given)
    30
    Thanks (Received)
    106
    Likes (Given)
    823
    Likes (Received)
    770
    Mentioned
    2 Post(s)
    Tagged
    1 Thread(s)
    Hitting 77 on the limiter





  5. Thanks SS Minnow thanked for this post
    Likes SS Minnow, whipper liked this post
  6. #4
    Join Date
    Sep 2017
    Location
    Miami
    Posts
    843
    Thanks (Given)
    30
    Thanks (Received)
    106
    Likes (Given)
    823
    Likes (Received)
    770
    Mentioned
    2 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by pkstv View Post
    Is that grandsport for sale ? What year is it ? How much ?
    It's a 2019. Everything is for sale.

  7. Thanks SS Minnow thanked for this post
    Likes SS Minnow, LakeFever liked this post
  8. #5
    Join Date
    Jul 2005
    Location
    panama city,fl
    Posts
    856
    Thanks (Given)
    7
    Thanks (Received)
    7
    Likes (Given)
    135
    Likes (Received)
    51
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That's a nice rig! I had no idea a 150 fourstroke would run that good, and don't have to worry about blowing the motor up either, probably out last most two strokes.

  9. Likes WavetoWave liked this post
  10. #6
    Join Date
    Sep 2017
    Location
    Miami
    Posts
    843
    Thanks (Given)
    30
    Thanks (Received)
    106
    Likes (Given)
    823
    Likes (Received)
    770
    Mentioned
    2 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by robert jordan View Post
    That's a nice rig! I had no idea a 150 fourstroke would run that good, and don't have to worry about blowing the motor up either, probably out last most two strokes.
    Exactly. They are bullet proof, and very economical to run.

  11. #7
    Join Date
    Aug 2009
    Location
    mpls,mn
    Posts
    3,210
    Thanks (Given)
    101
    Thanks (Received)
    275
    Likes (Given)
    4786
    Likes (Received)
    3376
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    How much for the gps speedo ? liked my g/ sport also but that's a lot of weight hanging of the back.
    I may be slow but im ahead of you. *hit's only ankle deep but you went in head first.

  12. #8
    Join Date
    Aug 2008
    Location
    Quebec. Canada
    Posts
    2,411
    Thanks (Given)
    0
    Thanks (Received)
    2
    Likes (Given)
    0
    Likes (Received)
    7
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by racervboat View Post
    How much for the gps speedo ? liked my g/ sport also but that's a lot of weight hanging of the back.
    4 stroke Merc is about the same weight than 2 stroke , is verry light..
    Go boating,be happy!! And wear safety vest please!! And lesson good music...https://www.youtube.com/watch?v=2c5oHITTI8c

  13. Thanks engineermike thanked for this post
  14. #9
    Join Date
    Aug 2008
    Location
    Quebec. Canada
    Posts
    2,411
    Thanks (Given)
    0
    Thanks (Received)
    2
    Likes (Given)
    0
    Likes (Received)
    7
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by WavetoWave View Post
    Exactly. They are bullet proof, and very economical to run.
    Nice setup my friend! Like you said and last trouble free. New models are slimmer too.
    Last edited by JP Love; 03-19-2019 at 05:53 AM.
    Go boating,be happy!! And wear safety vest please!! And lesson good music...https://www.youtube.com/watch?v=2c5oHITTI8c

  15. Likes WavetoWave liked this post
  16. #10
    Join Date
    Aug 2015
    Location
    NE Tennessee
    Posts
    1,639
    Thanks (Given)
    257
    Thanks (Received)
    136
    Likes (Given)
    1991
    Likes (Received)
    618
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by JP Love View Post
    4 stroke Merc is about the same weight than 2 stroke , is verry light..
    455 LBS. Dry weight.

    Copied from
    https://www.anglerschoicemarine.com/...sville-6091041


    • "Weights
    • Dry Weight455 lbs (206 kg)"


    Beautiful rig for sure !

    GLWS
    James H. W2F a V-King... Want 2 Fly a V-King

    Dedicated Site for Hydrostreams >> http://hydrostreamforums.com/
    My Project 1979 V-King restore >> http://hydrostreamforums.com/viewtopic.php?f=9&t=2761

  17. Likes WavetoWave liked this post
  18. #11
    Join Date
    Oct 2018
    Location
    Tennessee
    Posts
    1,100
    Thanks (Given)
    332
    Thanks (Received)
    82
    Likes (Given)
    1837
    Likes (Received)
    1294
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I also done some leading edge work before I etched my Bob s unit. I also believe it helped.
    97 xb2002 15" 300x w 1.62 sporty
    ( Haulin Bass) (108 mph so far
    (Rip. Whiteally02) -dad
    They call it the American dream, to bad you have to be asleep to believe it. - George Carlin

  19. Likes WavetoWave liked this post
  20. #12
    Join Date
    Aug 2001
    Location
    St. Cloud, FL
    Posts
    4,108
    Mentioned
    0 Post(s)
    Tagged
    1 Thread(s)
    That’s great. I agree with your thoughts in the article and believe you could see 80 by moving up to a 30”. Very cool project.
    2006 Spectre 24' SCS
    2020 Mercury 300 ProXS

    2001 Allison XB2003
    2006 Mercury 250XS

    1988 22' Velocity (sold)

    1995 Allison Grand Sport (sold)
    1998 Mercury Stock 2.5-260 SS

    1990 Velocity 30' - 502's (sold)

    Go Daddy Go! Racing

  21. Likes WavetoWave, whipper liked this post
  22. #13
    Join Date
    Sep 2017
    Location
    Miami
    Posts
    843
    Thanks (Given)
    30
    Thanks (Received)
    106
    Likes (Given)
    823
    Likes (Received)
    770
    Mentioned
    2 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by racervboat View Post
    How much for the gps speedo ? liked my g/ sport also but that's a lot of weight hanging of the back.
    Good question, you'd have to check with one of the retailers on Scream and Fly. I didn't buy it retail, so I can't accurately say.

  23. #14
    Join Date
    Sep 2017
    Location
    Miami
    Posts
    843
    Thanks (Given)
    30
    Thanks (Received)
    106
    Likes (Given)
    823
    Likes (Received)
    770
    Mentioned
    2 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by tnelsmn View Post
    Would like to see a before and after. I plan on adding a bobs cone to my lower this season. Is this a worthwhile mod to all bobs cones? Or more specific to this boat/engine combo? Thanks!
    Ya, it's worthwhile on all pointy cones. We outlined a few reasons why in this article I'll link to. In general, it improves water flow, and reduces drag.

    Details
    https://www.wavetowave.com/home/2019...our-lower-unit

  24. #15
    Join Date
    Jul 2006
    Location
    Minneapolis MN
    Posts
    940
    Thanks (Given)
    168
    Thanks (Received)
    146
    Likes (Given)
    2652
    Likes (Received)
    981
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by WavetoWave View Post
    Ya, it's worthwhile on all pointy cones. We outlined a few reasons why in this article I'll link to. In general, it improves water flow, and reduces drag.

    Details
    https://www.wavetowave.com/home/2019...our-lower-unit
    Thanks, I found that after posting the question.

Page 1 of 5 1 2 3 4 5 LastLast

Similar Threads

  1. Merc. 300xs on an Allison Grand Sport ?
    By micker54 in forum General Boating Discussion
    Replies: 4
    Last Post: 07-30-2007, 07:29 PM
  2. Best Gearcase for Allison Grand Sport
    By Ziemer in forum General Boating Discussion
    Replies: 10
    Last Post: 02-25-2002, 06:50 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •