1998 2300sc Prop

[crouch]

So my 2300 is slow out of the hole and the more people I have the worse it is of course. Now my WOT is 4200rpm with a max speed of 34mph. Maybe if someone who knowns about these things could give me some info on props and what to check. Its a MC5.0 engine, bravo 1. Also this is my first boat and not sure what has been done to it before my ownership.

Thanks in advance

Cheers
Crouch

[mmwjr]

Your WOT is a little low should be 4400-4800. How many passages were on board when you made the test? That boat should be able to reach 40 mph.

[crouch]

Thank you for the reply. Just two of us on the boat for the WOT test.

[mmwjr]

Originally Posted by crouch

Thank you for the reply. Just two of us on the boat for the WOT test.

Do you know what the current prop size is? 3 or 4 blade? Aluminum or Stainless Steel?

Options are reduce pitch by one size. If 4 blade go to a 3 blade. If SS go to aluminum. Each one of this should increase rpm by about 200 rpm. Also try using Quicksilvers prop calculator to see what it recommends.

Prop Selector | Quicksilver Propellers | Mercury Marine

[crouch]

Not sure of prop size but is aluminum and a 3 blade. How do I determine prop size of the one I have now?

[mmwjr]

Originally Posted by crouch

Not sure of prop size but is aluminum and a 3 blade. How do I determine prop size of the one I have now?

If you remove it there should be a part number on the hub behind the mounting hardware or stamped on the outside of the hub between the blades.

[crouch]

Thank you. I will get that info.

[kurek9]

The maxum 2300sc came with 3 engines the 5.0 5.7 and a 7.4.... I have the 5.7 and a 14x17 prop. I just installed a new engine and so far my cruising speed is 30 mph at 3000 rpm. I haven't opened her up yet to see my WOT speed and rpm.