1900 SC with 5.OL Carb Prop Size??

[tjwestcott]

Hey Guys, I was wondering if any one knows the prop size and pitch on a 1999 Maxum 1900SC with the 5.0L Carb Mercruiser.
Thanks

[mmwjr]

Welcome aboard

I don't know what came from the factory but you can try mercruisers prop calculator to see what it recommends.

https://www.mercurymarine.com/en/us/...tor/#/step-one

[bicklebok]

Hey TJW, we have the same boat except mine is a 2000 model.
Wish I could help you on the prop but my boat is new to me.

If you want, I can try to identify the prop on mine and give you some performance numbers if you thought it would help.

[tjwestcott]

I'm not sure of some info on the boat that I need for the Mercurey Prop calculator. Anyone know the weight of the 1900 SC?

[bicklebok]

I think its right at 3,000 pounds.

[CountryME]

maxumcustomercare.com does not list a 1900SC in 1999, but a 1900SR had a 14-1/2 x 21 prop from the factory. In 2000, depending on which 5.0l motor is in the boat, the factory prop for the 1900SC was either a 14-1/2 x 21 or a 14-1/2 x 21.

Most props have the part number stamped on the body or the prop pitch stamped on it. Using the current prop pitch and your wide open throttle (WOT) RPM, you should be able to figure out if you are over-propped (Pitch too high, resulting in low WOT RPM) or under-propped (Pitch too low, resulting in a high WOT RPM). Recommended WOT RPM is listed on the air cleaner cover. (A google search shows it should be 4400-4800, but go by the specs on your motor). Hope that helps.

-JP