Diesel engine HP output

[nevillenolan]

Can anyone explain why some diesel engine manufacturers have models with different maximum horsepower figures - but it's the same block?

Nanni's 2.45 and 2.5 both use the Kubota Z482 - but produce 10HP and 14HP.

Same bore and stroke, same maximum revs, but two different outputs.

Sole/Mitsubishi does the same thing.

How do they do it - and why wouldn't you want the larger horsepower rating?




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[dickh]

If you compare the 10hp with the 14hp I think you will find that the lower hp is a 3000 rpm whereas the 14hp is at 3600 rpm.(thats how I spotted it) Possibly different pump settings as well. They can charge more for the 14hp for very little expense on their part!

<hr width=100% size=1>dickh
I'd rather be sailing... /forums/images/icons/smile.gif