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Yamaha builds a 350hp outboard? Huh!

Paul65k

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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
 

Tom Brown

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

Gelcoater

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

paradise

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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
 

SodarSki73

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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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Gelcoater

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

Tom Brown

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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
 

Faceaz

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Tom Brown

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800 lbs! :D

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

Tom Brown

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

pronstar

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You could always lighten it with some Dana cast aluminum manifolds and risers.
Cylinders are holes.
Holes add lightness.
So they should just add more cylinders :thumbsup
 
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