recommended prop for 90 hp Honda

[sonnyp3300]

have a 20.6 foot Crest Pro Angler with 90 hp Honda....turns 5800-6000 rpm trimmed in and loses rpm's with no lift when trimmed out.....currently running Quicksilver 3 blade 14 pitch prop... any suggestions? sonnyp3300

 

[WaterDR]

Re: recommended prop for 90 hp Honda

Sounds like you have the right prop. What am I missing?

 

[sonnyp3300]

Re: recommended prop for 90 hp Honda

boat will not elevate at all when trimmed up.....could prop need cupped? By the way does anyone know the recommended maximum rpm level for a Honda 90?

 

[WaterDR]

Re: recommended prop for 90 hp Honda

boat will not elevate at all when trimmed up.....could prop need cupped? By the way does anyone know the recommended maximum rpm level for a Honda 90?

What do you mean by "elevate"?

 

[sonnyp3300]

Re: recommended prop for 90 hp Honda

usually when boat is trimmed up during operation, front will rise out of the water, rpms will increase and speed will also increase.

 

[crb478]

Re: recommended prop for 90 hp Honda

A pontoon will not react to trim like a boat with a planning hull. It is a displacement type of craft and unless you have lifting strakes will not just skim across the water like other boats. I am not sure what your wot rpm's are supposed to be, but it sounds like you have the right prop.

 

[WaterDR]

Re: recommended prop for 90 hp Honda

A pontoon will not react to trim like a boat with a planning hull. It is a displacement type of craft and unless you have lifting strakes will not just skim across the water like other boats. I am not sure what your wot rpm's are supposed to be, but it sounds like you have the right prop.

Completely agree! The front end of that pontoon wont lift unless you have copious amount of weight in the back

Cupping your prop will do nothing but drop your rpms and perhaps increase prop efficiency a tad. It certainly won't lift the front end even a fraction of a centimeter.

What you need to determine is the max rpm for that motor and adjust your prop accordingly.

 

[MH Hawker]

Re: recommended prop for 90 hp Honda

At most and its yet to be talked about you may need to drop the motor a bit, but others things need to be sorted out first.