I need a little help with choosing a Prop...

[velocity149]

Hi All,

I've been reading these forums for a while, but just signed up..

I recently bought a 1989 Maxum 2000SC with a MerCruiser 3.0 litre. Engine runs great, although I know the propeller is not right.

There are no markings on the prop, and it is a bit chewed up. I am aiming for 4600-4700 RPM at WOT. I am currently at 5400RPM, and I know that's way too high.

Anybody with experience with Props/ this specific boat/motor, please chime in. I really want to buy a prop that wont fry my engine, but still keeps me going relatively fast.

Thanks in advance.

Brian

 

[Chris1956]

Brian, There are lots of props that fit your motor, from lots of manufacturers. I would look up your boat motor combo in a prop selector (most prop manufacturers have such a tool) to get an idea of the pitch necessary. At this point you could buy or borrow a prop to test.

Alternatively, a prop shop may be able to measure your existing prop. You probably want to add about 4" of pitch to your current prop.

 

[steelespike]

Look for numbers under the prop nut.What is the gps speed at 5400?How is the hole shot?
Older tachs are always suspect until proven.