Niels,
Find the recomended rpm of your engine (according to owner's manual), and for the given usual weights of your boat, try to find the best fitting prop. If the engine revs more than it should with the prop you have, then you must increase the pitch. On the opposite side you have to decrease it. Every pitch change gives 250 rpm more or less.
__________________
Michael a.k.a "Bat Falcon"
|