Join Date: Feb 2010
Location: Narragansett Bay
Thanked 327 Times in 307 Posts
Rep Power: 8
Turbo charged diesel
Why do they bother doing this to a sailboat engine?
I understand the principal of packing more air into a cylinder, and therefore more fuel, to create more power from the same engine. However, it seems we don't really need all that much power. For goodness sakes, my Harley has a much horsepower as my boat. Why can't we get enough HPs out of a normally aspirated engine? My boat motor must be 5 times bigger than the V-twin on the Harley.
I could also swear I read that my turbo doesn't even kick in until 2300 rpm, which I rarely run her at. 2200 rpm is pushing hull speed. The max rpm on my Volvo TAMD31 is 3600 or 3800, can't recall.
So what gives on the need for turbo? Is it the Marine Mechanic Full Employment Act? The stinking thing does suck boat units. I just replaced some burnt cooling fans on a turbo that I can't understand why I have.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.