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Old 29 May 2010, 11:37   #1
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Country: UK - England
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Engine: Suzuki DF140
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Suzuki DF140 vs DF150 Ribcraft 5.85

Hello all,

I'm having some trouble deciding between the two suzuki's on a 5.85.

I know the differences in spec between the two but without actually speaking to somebody who has used both on the boat it's difficult to choose.

If I decide on the 140 will I always wish I'd got the 150? Or is it plenty of power for the 5.85?

What difference in fuel consumption is there likely to be between the two?

Main use is cruising and high speed bursts.

Thanks.
Paul
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Old 29 May 2010, 11:52   #2
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can you look at the Yam 150??... I heard but not confirmed the suzook actually pushes out 128 at the prop.
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Old 29 May 2010, 12:54   #3
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surely we are not going back to the days when some engines (from the states) were rated at the crankshaft and others (from Japan) were rated at the prop shaft?
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Old 29 May 2010, 14:37   #4
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wavelength, i hope not, would be interesting if someone knows 100% if this is the case.
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Old 29 May 2010, 19:40   #5
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I've got a Suzuki 140 on my 5.85 and it is more than adequate for 5 people and 4 sets of technical diving kit (about 75kg each) - in a reasonable sea we can manage 25+ knots at 4200 rpm with the original prop. I'm not sure the 150 will give you a lot more. The 5.85/140 is a well balanced combination.
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Old 29 May 2010, 20:32   #6
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There is an extra 30kg ish to lug around with an extra 800cc ish to fill with petrol each rev - all for an extra 10hp ? (not to mention the cost).

I guess the 150 will be a less 'stressed' engine - but I'd stick with the 140 ....
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Old 29 May 2010, 20:35   #7
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Country: UK - England
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Originally Posted by PeterM View Post
There is an extra 30kg ish to lug around with an extra 800cc ish to fill with petrol each rev - all for an extra 10hp ? (not to mention the cost).

I guess the 150 will be a less 'stressed' engine - but I'd stick with the 140 ....
Bet there's a shedload more torque though.
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Old 29 May 2010, 20:42   #8
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Bet there's a shedload more torque though.
Good point Nos . I guess it becomes a question of if its pushing a 'heavy' boat ( over & above the solid construction of Ribcraft).
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Old 29 May 2010, 21:41   #9
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IBWET (member on here) went through the same decision making process and opted for the DF150. Check his posts - he found the boat stern-heavy and liable to chine walking, but good fun.

Why does it have to be a Soozook? Opti and Etec 150s will come in a little bit lighter and you'll get 6 cylinders & 2-stroke benefits.
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Old 29 May 2010, 22:06   #10
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Why does it have to be a Soozook? Opti and Etec 150s will come in a little bit lighter and you'll get 6 cylinders & 2-stroke benefits.
Soozook make a bit of noise about their outboards being very fuel efficient, do you know if this is just the usual sales guff or are they really better than the rest?
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