fuel efficient cruising

[THEFERMANATOR]

Originally Posted by Larryrsf

My boat is in a Marina on San Diego Harbor. So I am constrained to do my boating on that harbor. It is big enough that even light winds can kick up chop and even swells. And BIG boats, even ships pass through and create big swells from their wake. So the harbor is seldom smooth enough to plane without scaring the crap out of my passengers, ha.

My boat speedometer shows low 20s with 3000 RPM. It is on top and planning at that speed. I read that this boat with a good 150HP engine can hit 50MPH with just one or two people aboard. Maybe I will find lake-smooth conditions some morning and let er' rip!

Larry

An old school 150 should push you close to 40, but not 50. it takes about 200 prop shaft horsepower to get into the 50 MPH range with a V-20. A good healthy late model 150 will get you low to mid 40's top speed. A 225 in healthy condition will break 50 with a good prop. And if your crazy enough a 250 can hit 60.