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Yamaha builds a 350hp outboard? Huh!

Discussion in 'The Outboard Church' started by Tom Brown, Jan 28, 2011.

  1. Tom Brown

    Tom Brown Epsilon contributor

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  2. Paul65k

    Paul65k Schiada Baby.......Yeah!!

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    Well......the V6 motors weigh in at 505lbs.......how much do we think 2 more cylinders will add??

    The good news is that 350HP is likely just the starting point......I wonder where they will take this thing........450 maybe 500HP??:D
     
  3. Tom Brown

    Tom Brown Epsilon contributor

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    The V8 can't weigh much more. I would imagine it will be less than 600lbs. :D


    Those numbers aren't all that bad, if they are real world numbers. The OMC V8 was way up there too.

    350hp out of 5.3l of Japanese 2 stroke is ridiculous. A performance tuner should have little problem getting that motor up to 750 hp, seriously. The boat manufacturers must have requested a motor with huge torque, which that mill undoubtedly has. I'll bet it's a nice motor for the big fishing boats that will run it.

    :cool:
     
  4. Gelcoater

    Gelcoater Well-Known Member

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    Its a 4 stroke. And why is it they never show torque numbers?
     
  5. paradise

    paradise Spooner

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    I know that on our fishing boat, it actually runs faster with twin 300 suzukis than twin 350 yamahas because of the weight... Those things are MAJOR pigs
     
  6. SodarSki73

    SodarSki73 Well-Known Member

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    25" shaft is like 800lbs and the 30" shaft is like 830 or something. It;s been a while since I read up on them.

    From what I understand the 350 was built for torque and grunt of the new 40'+ center consoles and expresses cruisers that Intrepid, Jupiter, Contender and the likes are building.

    The new Verado 350sci is bad ass, but I don't think it is built for the torque the Yami is, more for speed in the lighter and faster center consoles.

    In Key West this year, they had a 39' Cigarette with Quads... fuckin' tits!!!
     

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  7. Tom Brown

    Tom Brown Epsilon contributor

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    There are 4 stroke outboards now? What the hell???!! :D :D
     
  8. Gelcoater

    Gelcoater Well-Known Member

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    The result of the EnviroNazi's plan. You should know by now any thing fun(and 2 strokes are fun!) gets banned,or in your case kindly asked to tone it down.:D
     
  9. Tom Brown

    Tom Brown Epsilon contributor

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    Yeah. I read that article on the engine and was well aware it was a 4 stroke but just started thinking it was an HPDI 2 stroke, for some reason. Getting old sucks.

    4 stroke is cool, it's just apples and oranges to a small 2 stroke screamer.

    This lack of 2 stroke inventory is starting to be a problem. For that reason, I think I'll just stick with what I have until they legislate me off the lakes. :D
     
  10. Faceaz

    Faceaz Well-Known Member

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    :D
    Tom - you must be speed reading :D:

    "Curb weight is an acceptable 804 pounds."

    But you're right, not listed in the specs, just the article.

    I can't think of a transom I would like 2,400 lbs hanging off, not to mention the thrust of all 3. My engine is a tank @ 560lbs, 800 - no thanks.
     
  11. Tom Brown

    Tom Brown Epsilon contributor

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    800 lbs! :D

    It's lighter than a stern drive, I suppose.
     
  12. pronstar

    pronstar President, Dallas Chapter

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    Hmmm...4 stroke outboard. 800 lbs.
    That's 200 lbs. per stroke.
    They need to find lighter strokes :headscratch:
     
  13. Tom Brown

    Tom Brown Epsilon contributor

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    You could always lighten it with some Dana cast aluminum manifolds and risers.
     
  14. pronstar

    pronstar President, Dallas Chapter

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    Cylinders are holes.
    Holes add lightness.
    So they should just add more cylinders :thumbsup
     
  15. Dave Wettlaufer

    Dave Wettlaufer Well-Known Member

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    ...or make the holes bigger!:D
     

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