So, this is my first post. Have been reading lots of prop posts since I purchased my new to me 88 25hp Evinrude back in June. My 10 1/8x13 aluminum is in pretty bad shape (chunks missing, one blade bent forward slightly, etc.)
I took the advice of all I had read and installed a Tiny Tach so I could get an idea what the engine was doing.
My boat is a 16' Lowe Big Jon. I usually have myself, wife, and two young kids with us, but will occasionally have fewer or more.
With my chewed up prop, the engine is turning anywhere from 4900 (with two adults and three children) to 5280 with two adults only. According to GPS the boat is averaging 23 mph with a maximum so far of 25 mph.
I know I need to get a new prop, and plan on keeping this one for a river spare but don't know if I should just get the same thing or something different? It seems that my RPM's would be higher now that the prop isn't as efficient as it should be, or will my RPM's be the same with the same replacement but just gain speed?
Any advice or insight you can give would be great!
Thanks
Kyle
I took the advice of all I had read and installed a Tiny Tach so I could get an idea what the engine was doing.
My boat is a 16' Lowe Big Jon. I usually have myself, wife, and two young kids with us, but will occasionally have fewer or more.
With my chewed up prop, the engine is turning anywhere from 4900 (with two adults and three children) to 5280 with two adults only. According to GPS the boat is averaging 23 mph with a maximum so far of 25 mph.
I know I need to get a new prop, and plan on keeping this one for a river spare but don't know if I should just get the same thing or something different? It seems that my RPM's would be higher now that the prop isn't as efficient as it should be, or will my RPM's be the same with the same replacement but just gain speed?
Any advice or insight you can give would be great!
Thanks
Kyle