long trip wanting to take on sea-ray 330

[Ka1oxd]

We took an 829-mile cruise. We cruised against a river current for 323 miles. Averaged 16 mph for 7 days in our 340. Burned 1120 gallons. We got .74 miles per gallon.

SEA RAY 340
2001
PERFORMANCE
“WILD RICE”
TWIN 454 MPI​

Speeds by GPS
Fuel Flows by computer connected to engines.

RANGE IS 215 GALLONS

RPM MPH GPH MPG RANGE

700 3.9 2.0 1.95 419

1000 6.0 3.6 1.66 358

1200 6.8 4.4 1.55 333

1500 7.9 7.0 1.13 242

2000 12.4

2500 18.6

3000 16.9 24.0 .70 150

3200 20.5 26.6 .77 164

3400 24.1 30.6 .79 168

3500 25.0 31.0 .80 172

3600 26.4 33.4 .79 170

3800 28.0 34.8 .80 172

4000 29.5 38.0 .77 164

4300 32.6 47.6 .68 147

Does anyone have these specs for a 1988 340 DA? Same engines and vdrives.