I have a 10HP Sabb diesel
with the standard 2 blade
17" variable pitch
prop that is manufactured by Sabb for the engine
I wish to repower
with an 18 hp Sabb with the same clutch
for the variable pitch
shaft/prop. (Same footprint and shaft connection.)
My question: In order to increase power and speed of the boat
to match the power increase of the engine
, would I need to increase the prop size?
My quandary: In order to increase the propeller
size I would need to cut a larger space in my rudder/hull to make it fit. If I go with a 3 blade
then I need to look at different F/R gear
box and drive shaft.