User Tag List

Thanks Thanks:  0
Likes Likes:  0
Page 4 of 5 FirstFirst 1 2 3 4 5 LastLast
Results 46 to 60 of 72
  1. #46
    Join Date
    Jun 2007
    Location
    Singapore/Melbourne/Italy
    Posts
    9,097
    Thanks (Given)
    1008
    Thanks (Received)
    354
    Likes (Given)
    4297
    Likes (Received)
    1953
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    Renault F1 team patented an electro/ hydraulic valve train.
    They never raced with it even so it was then banned.
    F1 engines must have cams and 4 valves.

  2. #47
    Join Date
    Jul 2004
    Location
    Lutz, FLorida
    Posts
    191
    Thanks (Given)
    1
    Thanks (Received)
    0
    Likes (Given)
    23
    Likes (Received)
    31
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Well, today is the day to see what Yamaha is going to release! No more secrets!

  3. #48
    Join Date
    Nov 2009
    Location
    uk
    Posts
    3
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hello All.
    This is Michaelis, There has been some recent conversations on the new Yamaha outboards that are coming out in 2010. Here's a little video preview that compares a new 2010 Yamaha outboard to a Yamaha Series 2 motor. The hole shot is incredible!!

  4. #49
    Join Date
    Aug 2006
    Location
    Kingsland GA.
    Posts
    1,327
    Thanks (Given)
    0
    Thanks (Received)
    1
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Right everyone has seen it about 2 weeks ago.

  5. #50
    Join Date
    Nov 2003
    Location
    Auckland NZ
    Posts
    663
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It's here...

    Looks the goods to me, pity can't get it in a counter rotating unit

    http://www.yamaha-motor.com/outboard/vmax_micro/

  6. #51
    Join Date
    Sep 2008
    Location
    Treasure Island Fl
    Posts
    1,160
    Thanks (Given)
    0
    Thanks (Received)
    5
    Likes (Given)
    2
    Likes (Received)
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You can get a counter. They are going to have an offshore series. Counter will come in 25 and 30 inch motors.

  7. #52
    Join Date
    Nov 2003
    Location
    Auckland NZ
    Posts
    663
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    but not with a LWP gearcase, it will be a standard style case I assume

  8. #53
    Join Date
    Nov 2003
    Location
    Auckland NZ
    Posts
    663
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ed's marine already has the 250HP SHO at $15400, not bad money for a high-tech 4 stroke...

  9. #54
    Join Date
    Sep 2008
    Location
    Central Oklahoma
    Posts
    9
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Performance reports posted
    (Ranger Z520), - Yamaha VF 250, E-TEC 250 HO, Pro XS 250
    Impressive numbers, especially acceleration and fuel burn.

  10. #55
    Join Date
    May 2001
    Location
    Scottsboro Alabama
    Posts
    706
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    6
    Likes (Received)
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I thought the Evinrude was faster than that, interesting. It was only tested with 1 person in the boat too.

  11. #56
    Join Date
    Aug 2001
    Location
    Annapolis, MD ragboat capital of the world
    Posts
    11,463
    Thanks (Given)
    591
    Thanks (Received)
    164
    Likes (Given)
    2428
    Likes (Received)
    445
    Mentioned
    2 Post(s)
    Tagged
    3 Thread(s)
    I suspect that the reason 2 stroke outboards are stuck with 20 year old technology is the same reason OMC f'd up with the original Fitch motors ... there is too much variation in set up and use.

    As I post over and over again ... bike manufacturers and jetski manufacturers build the whole vehicle and therefore have a huge amount of control over how the motor will be applied. Outboard makers have no such luxury. One motor goes on a light layup bassboat and the next one goes on a 80 ton work barge ... the next 1000 go on various applications in between, each one taking a different control algorithm family. Every possible load condition has to be known and logged in advance ... the variableness of flow in a 2 stroke motor is just too complex if you can't control most of the application conditions, much less all of them or nearly so.

  12. #57
    Join Date
    Jun 2007
    Location
    Singapore/Melbourne/Italy
    Posts
    9,097
    Thanks (Given)
    1008
    Thanks (Received)
    354
    Likes (Given)
    4297
    Likes (Received)
    1953
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    It happened to OMC before the Ficht, they put those big carbs on the early loopers and on a heavy boat they were dogs,
    on light boat real screamers.

  13. #58
    Join Date
    May 2001
    Location
    Scottsboro Alabama
    Posts
    706
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    6
    Likes (Received)
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Question. The 380 hp hpdi from Hydro Tech people were referring to, is that the 70hp phase kit they offer?

  14. #59
    Join Date
    May 2001
    Location
    Scottsboro Alabama
    Posts
    706
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    6
    Likes (Received)
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Mark75H View Post
    I suspect that the reason 2 stroke outboards are stuck with 20 year old technology is the same reason OMC f'd up with the original Fitch motors ... there is too much variation in set up and use.

    As I post over and over again ... bike manufacturers and jetski manufacturers build the whole vehicle and therefore have a huge amount of control over how the motor will be applied. Outboard makers have no such luxury. One motor goes on a light layup bassboat and the next one goes on a 80 ton work barge ... the next 1000 go on various applications in between, each one taking a different control algorithm family. Every possible load condition has to be known and logged in advance ... the variableness of flow in a 2 stroke motor is just too complex if you can't control most of the application conditions, much less all of them or nearly so.
    Thats one of the reasons I think you see offshore and bass versions, very different applications.

  15. #60
    Join Date
    May 2005
    Location
    Greenville, NC
    Posts
    9,669
    Thanks (Given)
    2
    Thanks (Received)
    15
    Likes (Given)
    21
    Likes (Received)
    49
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Therapist View Post
    Performance reports posted
    (Ranger Z520), - Yamaha VF 250, E-TEC 250 HO, Pro XS 250
    Impressive numbers, especially acceleration and fuel burn.
    You're comparing a current Yamaha test with 2 year old data.

    Ló fasz racing
    Joe Horvath

Page 4 of 5 FirstFirst 1 2 3 4 5 LastLast

Posting Permissions

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