Reading in the ads of boats for sale many list a "cruising speed" for their boat but usually don't list at what rpm. What does everyone here think cruising speed rpm should be. 3000, 3500, 4000. If you list 50 mph as cruising speed but its at 4800 rpm it doesn't mean that much.
What do you think "Crusing speed" at what rpm?
simulatedjim
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Reading in the ads of boats for sale many list a "cruising speed" for their boat but usually don't list at what rpm. What does everyone here think cruising speed rpm should be. 3000, 3500, 4000. If you list 50 mph as cruising speed but its at 4800 rpm it doesn't mean that much.
BTW: I'm with you on this cruising thing. Too vague. Especially on the difference in boats
Anywhere between 1000-1500rpm less than full throttle.
So, typical factory motors redline of 5000rpm, I think 3800-4000rpm would be a good area to pic.
.
A cat can cruise at super low rpms but still run fast.
A cruiser has a hard time cruising at low rpms, they must maintain higher rpms to keep going without coming off plane.
Anywhere between 1000-1500rpm less than full throttle.
So, typical factory motors redline of 5000rpm, I think 3800-4000rpm would be a good area to pic.
.
A cat can cruise at super low rpms but still run fast.
A cruiser has a hard time cruising at low rpms, they must maintain higher rpms to keep going without coming off plane.
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I cruise between 3000-3500rpm. Depending on trim thats 40-45 mph.
My boat ....when it was running :laugher:
seemed to like 4000 rpm 50-55 MPH. The boat seemed to be planing well and the motors were right at their torque range.
Any slower than that it seemed the bow was too high. I would have to put down trim and a little tab trim to keep the nose down. Also I made a lot less wake for the boats rafted/sitting along the way.
But that is with a short, a$$ heavy twin.
seemed to like 4000 rpm 50-55 MPH. The boat seemed to be planing well and the motors were right at their torque range.
Any slower than that it seemed the bow was too high. I would have to put down trim and a little tab trim to keep the nose down. Also I made a lot less wake for the boats rafted/sitting along the way.
But that is with a short, a$$ heavy twin.
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I ran mine up to where it seemed comfortable, not looking at speedo or tach. I was looking afor ride quality, and listening to motors sound. When i was where i thought a good cruising speed was I was at 3600 RPM and 44mph on the GPS.
WOT I can GPS 70 @ 4900-5000 RPMs
Not bad I don't think.
WOT I can GPS 70 @ 4900-5000 RPMs
Not bad I don't think.
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I cruise at 3800 t0o 4000 and depending on the chop of the water I'm normally at 48 to 53 mph, not pounding it but running nicely.
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good cruising speed for me is around 3000-3200rpm at 53-55 mph when the wife's on board, and 3600-3800 at 64-66mph
I always understood cruising speed to mean that you are just on the edge of going into the secondaries, which ends up being around 3200 RPM/35-40 MPH for me. I guess a lot of it depends on power/hull config. Some of the big cruisers are probably ALWAYS into the secondaries.
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I agree ... cruising is w/o secondaries kicked in...I like to keep it aorund 3200.....
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Our boat seems to like cruising at about 3400 rpm which is about 54 mph.
At 54 mph the boat seems to clear a 1 foot chop without feeling a thing....My wife doesn't even hang on to the grab bar.
At 65 mph she hangs on to the grab bar....
At 70 mph I get "the look" so I have to back out of it
Doug
At 54 mph the boat seems to clear a 1 foot chop without feeling a thing....My wife doesn't even hang on to the grab bar.
At 65 mph she hangs on to the grab bar....
At 70 mph I get "the look" so I have to back out of it
Doug
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