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Turbocharging a Marine Engine
You're far better off with a blower. Turbos have a lag problem as another
poster pointed out. There is the prop issue because you'll have to run a really high pitch for when the turbo kicks in which will make it a dog out of the hole. You also have to deal with a water cooled exhaust system. And heat issues. A 144 or 177 blower will give you the same boost without any of these problems. "Hemicuda" wrote in message om... Has anyone tried turbocharging a 5.0 L or 5.7 L Merc engine in this group? I know that it used to be done back in the 70's but I can't find any info about any current set-ups. From what I can find it seems like it might be advantageous by allowing you to run a better pitch prop for higher top end speed and reduced RPMs for cruising which seem like it would be good for efficiency and engine life. I don't think it would drop your low end that much because the compression on stock marine engines is close to 9:1 and you can probably run 10PSI of boost on 8.5:1 engines. Any thoughts or comments? I am more familiar with turbo applications on cars so I might be missing something. Thanks for the help! |
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