Last Dollar
Active Member
- May 10, 2011
- 245
- Boat Info
- Sea Ray 225
- Engines
- 5.0 Mercruiser
Just did a little test running and decided a 4 blade is much better for the type of running I do. My 03 225 Weekender with a 5.0 Alpha had a 3 blade stainless 19 pitch when I bought the boat, I assume this is the original prop. I tried a borrowed 4 blade aluminum 19 pitch and with using a GPS to determine speed on both props I got 3 mph faster at the same 3000 rpm with the 4 blade. I also had recorded the rpm at which I obtained 30 mph. With the 3 blade stainless I needed 3400 rpm but with the 4 blade aluminum I only needed 3150 rpm.
The boat planed off quicker and stayed on plane better at slower speeds.
The boat planed off quicker and stayed on plane better at slower speeds.