50hp Merc 13' Whaler - What size prop?

I own a 1970 13’ Boston Whaler with a 50hp Mercury Merc 500 motor Serial number (A131168 (1985)). The current prop that is on the motor is a C8 73136 A40L 13P. The top speed of the boat is 30mph (GPS). I hit something last weekend and bent the prop a little. I also believe that the prop that’s on there now is not the right prop for this boat motor combination. I believe that a 13’ Whaler with a 50hp on it should do close to 50mph, 40mph at min (hang on tight). I’ve tried using some of the online prop selectors and none of them seem to have the motor/boat combination that I have. I have a Vortex on another boat that I’m real happy with. Can anyone recommend a pitch for this boat/motor combination?

Thanks,

Tom

Re: 50hp Merc 13' Whaler - What size prop?

Hey Tom,

You'd do a lot better posting this in the prop section where Walleyehed can get a whack at it.

Mark

Re: 50hp Merc 13' Whaler - What size prop?

Please repost this in the Prop Forum.