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worlds largest outboard motor debuts at miami boat show

Old 02-13-2015, 05:23 PM
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Default worlds largest outboard motor debuts at miami boat show

http://www.boatingmag.com/worlds-lar...boat-show-2015 so seven marine ups themselfs...
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Old 02-13-2015, 05:34 PM
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Very cool, but i hear 557 is about equivalent to the 350 Verado in practice. Same prop, same ratio, tops at same rpm. Love to hear thoughts on this. Lots of buzz in Miami at the booths on this. Not from merc guys but from manufacturers.
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Old 02-13-2015, 05:37 PM
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Originally Posted by Pismo10
Very cool, but i hear 557 is about equivalent to the 350 Verado in practice. Same prop, same ratio, tops at same rpm. Love to hear thoughts on this. Lots of buzz in Miami at the booths on this. Not from merc guys but from manufacturers.
so what your saying is that the extra horsepower that the 557 has is useless? Why?
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Old 02-13-2015, 05:57 PM
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that's what I was thinking....... It appears that the three 557 push the Midnight Express to 73 mph. it would appear that's similar to triple 350 Mercs.....
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Old 02-13-2015, 05:57 PM
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Originally Posted by jackwilliam
so what your saying is that the extra horsepower that the 557 has is useless? Why?
Well the point is there may not be any extra hp.
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Old 02-13-2015, 07:26 PM
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There is a lot more weight in a 557 that offsets a lot of that extra power. One advantage they can have is you can put two 557 instead on three 350 mercs. Less props in water, not sure how they do on gas.
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Old 02-13-2015, 08:08 PM
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Originally Posted by chewiekw
There is a lot more weight in a 557 that offsets a lot of that extra power. One advantage they can have is you can put two 557 instead on three 350 mercs. Less props in water, not sure how they do on gas.
i looked it up and the mercs beat it on gas, no surprise. although having the huge enignes off the backs decreases maintenence due to only having to have two engines in the water instead of three.
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Old 02-13-2015, 08:11 PM
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Originally Posted by thedonz
that's what I was thinking....... It appears that the three 557 push the Midnight Express to 73 mph. it would appear that's similar to triple 350 Mercs.....
MTI gained something like 12 mph with triple 557's so not similar at all. The LSA engine they use is a beast.
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Old 02-13-2015, 08:15 PM
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Originally Posted by freshwaterfiend
MTI gained something like 12 mph with triple 557's so not similar at all. The LSA engine they use is a beast.
how strong does the transom have to be to hold up the 3000+ lbs of engine back there
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Old 02-14-2015, 04:57 PM
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so what would be assumed is the new 400 is going to just push 7marine out of the picture?
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