Jabfd32
New Member
- Jun 10, 2018
- 12
- Boat Info
- 1987 sea ray 268 da 2003 Suburban 2500
- Engines
- 2007 5.7L mercruiser 250 hp alpha 1 gen 1
hello everyone trying to find out why my new boat is a dog.
I have a 2007 5.7L 250 hp with the boat empty no gear/water on board at all half a tank of fuel I was able to reach 4300 rpm and get up to 23 knots now with fuel tank f fuel and about 25 gallons of water I can barley make 3800rpm and 15 knots. When the boat was empty the best cruise speed was around 3800 rpm and 20 knots I had trim tabs down. Now should go down a pitch to get in the rpm range of 4200 to 4600 with the added gear and fuel?
I have a 2007 5.7L 250 hp with the boat empty no gear/water on board at all half a tank of fuel I was able to reach 4300 rpm and get up to 23 knots now with fuel tank f fuel and about 25 gallons of water I can barley make 3800rpm and 15 knots. When the boat was empty the best cruise speed was around 3800 rpm and 20 knots I had trim tabs down. Now should go down a pitch to get in the rpm range of 4200 to 4600 with the added gear and fuel?