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I have a 1996 240 sea ray sundancer 5.7L 210hp I am running…

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I have a 1996...

I have a 1996 240 sea ray sundancer 5.7L 210hp I am running ma 14.5 dia 18P I am at 5500ft only running

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so the Marine Mechanic can help you best.

4200rpm want to go to 4 blade SS what are my choices?

Mechanic's Assistant: Is there anything else important you think the Marine Mechanic should know?

I do not think so.

Submitted: 1 year ago.Category: Boat
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8/4/2017
Marine Mechanic: Charles, Marine Mechanic replied 1 year ago
Charles
Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 4,914
Experience: US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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Hello, my name is***** will assist you.

Let me run some calculations. Ill have an answer for you in just a few minutes.

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Marine Mechanic: Charles, Marine Mechanic replied 1 year ago

You can run just about any of the Mercury 4 blade props, except for the Bravo 1. Drop the pitch down to 16-17 and you should get in the 4600 RPM range with a top speed of around 39 MPH. I figured this using several different drive types and gear ratios and all were pretty close to these results here.

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