Prop for Vector/Merc Inline 150


Hi, what prop do you recommend for this boat/motor combo? 1979 Vector with 1978 inline 150 Merc. I have no modifications, everything is stock. I have no jack plate or setback. The boat will be used to ski and joy ride across a fairly calm sheltered  fresh water bay. I would like to have some low end snap and maximize top end, and also keep the rpm's reasonable at wot. This is a classic motor, its racing days are behind it, if you know what I mean. What is the recommended max RPM for this engine, and what do you feel I should see on the speedo with your recommended prop? Also can you possibly include model numbers on the prop you suggest? Thanks Randy- Bill B



The prop I would look for is a 24 in line chopper. Since they have not made one in over 10 years, used is the only way to get one. New props would be a 22 pitch Laser II or 24 pitch Laser II. Not as much fun as the chopper, but pretty good nonetheless.




Please submit whatever questions you have to  All questions and answers selected will be displayed on this page as they come in.  Note: though all boaters are welcome, priority may be given to I.H.R. members.  Randy can not be held responsible for any advice given.  Though his information and expertise is second to none, he has no control over what you do with your boat.  It is up to you to boat safely and act responsibly, and his advice is only to be used as a guidance for your high performance boat/motor of which you are the one responsible for the risks involved.

Mark C.


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