Let me start by saying this is my first post on here and only recently purchased a rib after a few years spent landlocked!
Anyway my 6.5m Redbay is fitted with a Suzuki DF250 and the 3 blade stainless prop (21 pitch) gives it a top speed just over 50mph (6,200rpm). I have only ever done this on a couple of occasions and to be honest am not too interested in raising this top speed. I do however spend a huge amount of time cruising at about 30mph (3,700rpm).
To cut to the chase i presume going up an inch or two in pitch will give me better fuel economy and a higher cruising speed, but is my current set up harmful to my engine? I have heard it being likened to running a car in too low a gear, as long as i don't over rev it should be ok right?
Any feedback will be appreciated!