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Turbocharging a Marine Engine
So from what I can summarize from the above posts are that the turbo
will probably work great while cruising and at top end but will be a dog coming out of the hole. This is a dumb question but I thought that at slower speeds boats require less horsepower to move them through the water. As the speed increases so does the power requirement for a certain hull design. Is this true? If so it appears that the low end lack of boost shouldn't kill me. Or am I totally of base? The other thing I was thinking of was to put smaller turbos on the engine to reduce lag but sacrifice top end boost. Marine engines rarely go over 5,000 RPM so I could probably go with a smallish turbine housing with a waste gate that will bring on boost quickly and then dump the excess exhaust gas at higher speeds. I know the heat will be a problem but I think that is manageable but I don't want to take forever to get up on plane. Has anyone seen or ridden in a gasoline turbo'd boat and seen how bad the hole shot was? The reason I want to stay away from a blower is that although it will boost power I think it will hurt the fuel efficiency. Also blowers tend to be expensive and I can score a pair of T3 Turbos from old T birds which would fit a 5.0 or 5.7L fairly well for cheap at a junk yard and fabricate a set-up. Thanks for all the help and I appreciate any more thoughts or info you could pass on! |
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