I have. Pontoon with a 150 HP ETec pontoon series. I run WOT at 5600-5700 RPM and 34 mph. I checked the prop and its a 15 x 14 pitch. It appears from the proformance sheet I should be running a 15-1/2 x 13 pitch prop. I want to buy a spare. Going to a 15-1/2 x 13 will help fuel and oil consumption? What will it do for top end and hole shot?
The one I have is a stainless, will going to an aluminum hurt proformance?
More information is needed to give you an accurate answer. What is the complete model number of your engine? It will be printed on the serial number tag.
"There is never just one thing wrong with a boat"; -- Travis McGee, main character in a book series by John D. McDonald
*************** The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. If you elect to do it yourself, be sure to use caution, common sense, and to observe all safety procedures in the vicinity of gasoline, moving engine parts, high temperature components, heavy items, and electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation or a technique, enlist the services of a factory trained technician.