A real answer ? Most guys have it . I consider cruise where the boat runs efficient , is probably not in the secondaries, and is not screaming the motor and killing it . Ready all the boat tests in magazines. Almost every boat there runs best around 3000-3200 rpm's .

I don't realy watch fuel burn . I just cruise about 3000-3500 for an easy cruise, A fast cruise of 4000 if you realy want to get there , and if the storm is brewing , 5,000 ! :D

I dont' consider "cruising "any "SPEED". I consider it an "RPM" that is comfortable .

Just my .02 , Joe

Example of speed doesn't count: In my ski boat I cruise at about 35, in my big boat I cruise 60-70, and when I was in Jet Set , we cruised 140-150 !:D :D It's all about the rpm's .......

Or if the boat rides like crap then you need to run slower . Joe

Re: Just before the secondaries open...
 

Just be careful. I can see on my dyno sheet that the motor goes lean the moment BEFORE the secondaries open. Now I don't have a primary powervalve, so that is the reason for the lean condition, but it certainly is something to think about.

Optimum cruise speed, would be the maximum speed in which your boat will travel while your motor is getting the highest fuel economy possiable, while not overlaboring. Every boat has a crusie speed mine is at about 80-85 mph. Personaly I feel crusing is for the long trips in big ocean yachts, there trying to get the most distance out of there fuel as possiable. Alot of people also difine crusie speed as the point in which they feel there boat gives the most comfortable ride characteristics.

3000 rpm....motor just seems to like it there.

Mad Cow....fuel efficiency AND 3 big azz big blocks...oxymoron? :) :) :)

3000 rpm....motor just seems to like it there.

Mad Cow....fuel efficiency AND 3 big azz big blocks...oxymoron? :) :) :)

For me as of now, my "road cruising" is limited to roughly 3mph walking speed ;)

3500 RPM's at about 100 MPH. Otto

Otto :D :D NIce !

Hyperbaja, I feel for ya !:(

What the picture says