Sow&Pigs
Well-known member
So I did some testing today with two diffrent props. Light breeze, small chop about 70 gallons of fuel and two adults.
Boat is a 1991 25' Parker MVSC. The engine is a 2001 225 Opti. WOT should be around 3600, according to the manual.
Here's what I found:
15X17 three blade aliminum Black Max
Speed is via the GPS
4500 - 21mph
4700 - 22.1mph
4900 - 23mph
5100 - 24.2mph
5300 - 25mph
5500 - 25.9mph
5600 - 26mph this was wot
15 1/4X15 three blade aliminum Black Max
Speed is via the GPS
4200 - 19.7mph
4400 - 20mph
4600 - 21.9mph
4800 - 22.1mph
5000 - 23mph
5200 - 23.9mph
5400 - 25mph
5600 - 26.2mph this was wot
In both tests the engine was trimmed slightly (1.8 on the Smart Craft)
To me, none of this seems right. Judging from what some of you are getting with similar boats and 225 Yammies, I've seen wot speeds above 30.
Any suggestions would be extremely welcome!
Thanks
Boat is a 1991 25' Parker MVSC. The engine is a 2001 225 Opti. WOT should be around 3600, according to the manual.
Here's what I found:
15X17 three blade aliminum Black Max
Speed is via the GPS
4500 - 21mph
4700 - 22.1mph
4900 - 23mph
5100 - 24.2mph
5300 - 25mph
5500 - 25.9mph
5600 - 26mph this was wot
15 1/4X15 three blade aliminum Black Max
Speed is via the GPS
4200 - 19.7mph
4400 - 20mph
4600 - 21.9mph
4800 - 22.1mph
5000 - 23mph
5200 - 23.9mph
5400 - 25mph
5600 - 26.2mph this was wot
In both tests the engine was trimmed slightly (1.8 on the Smart Craft)
To me, none of this seems right. Judging from what some of you are getting with similar boats and 225 Yammies, I've seen wot speeds above 30.
Any suggestions would be extremely welcome!
Thanks