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Old 10 May 2007, 09:58   #1
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New 350 hp outboard from Yamaha
http://www.boats.com/news-reviews/ar...maha-f350-test
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Old 10 May 2007, 11:05   #2
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Nice to see the first test on it - why the hell they had to go for such a huge displacement and so much weight is beyond me.

A Mercury 300xs has a 3.3L block - these things are 5.3L - no wonder they weigh so much!!!
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Old 10 May 2007, 13:43   #3
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Originally Posted by codprawn View Post
Nice to see the first test on it - why the hell they had to go for such a huge displacement and so much weight is beyond me.

A Mercury 300xs has a 3.3L block - these things are 5.3L - no wonder they weigh so much!!!
Let´s see what all the other manufacturer will come up with...
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Old 10 May 2007, 14:13   #4
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Let´s see what all the other manufacturer will come up with...

I wish Evinrude would come out with a nice V8 2 stroke!!!
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Old 10 May 2007, 14:24   #5
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Originally Posted by codprawn View Post
Nice to see the first test on it - why the hell they had to go for such a huge displacement and so much weight is beyond me.
Probably so they can use it as the basis for a future even larger HP engine
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Old 10 May 2007, 16:21   #6
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Close-300hp v8 Johnsons...
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Originally Posted by codprawn View Post
I wish Evinrude would come out with a nice V8 2 stroke!!!
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Old 10 May 2007, 17:29   #7
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Exactly - where's the progress in all these years? Once you use the full 300hp I bet there isn't much difference in economy either!!!
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Old 10 May 2007, 17:30   #8
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Probably so they can use it as the basis for a future even larger HP engine
Hopefully so - a 400hp and it may be viable!!!
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Old 10 May 2007, 19:34   #9
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anyone knows what the fuell consumption of the mercury XS 300 HP is, or the suzuki 300 HP at WOT? just in order to compare with the yamaha
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Old 10 May 2007, 19:38   #10
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Originally Posted by codprawn View Post
I wish Evinrude would come out with a nice V8 2 stroke!!!
Evinrude can make the existing E-Tec 250HP produce 350 HP I was told by one of the head technicians of BRP in Belgium. Only problem if they do that is pollution. They do not longer comply with the environmental requirements.

So imagine, getting 350 HP out of a 240 kg engine …
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Old 10 May 2007, 19:42   #11
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anyone knows what the fuell consumption of the mercury XS 300 HP is, or the suzuki 300 HP at WOT? just in order to compare with the yamaha
I know someone with 2 300 xs's and he said 20 gph.
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Old 10 May 2007, 19:43   #12
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Evinrude can make the existing E-Tec 250HP produce 350 HP I was told by one of the head technicians of BRP in Belgium. Only problem if they do that is pollution. They do not longer comply with the environmental requirements.

So imagine, getting 350 HP out of a 240 kg engine …
That would be perfect - and I suspect it would still put out a lot less than your average BBQ!!!
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Old 10 May 2007, 19:47   #13
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anyone knows what the fuell consumption of the mercury XS 300 HP is, or the suzuki 300 HP at WOT? just in order to compare with the yamaha
I have seen the Suzuki quoted at 85lph.

In the test the V8 Yam was 127lph - gulp!!!
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Old 29 June 2007, 11:25   #14
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362kg


http://www.yamaha-motor.com/outboard...outboard_.aspx
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Old 29 June 2007, 12:07   #15
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Tell me about it - only viable if they bring out a 400hp version!!!
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Old 30 June 2007, 20:10   #16
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why not build a Yamaha F300 V6... I would have it in my mind when choice the engine for my future rib....
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