370 AC fuel consumption data

[gmcveigh]

Does anyone have fuel consumtion data for a 1999 370 AC with twin Horizons? Thanks.

 

[Southpaw II]

My info, published by Sea Ray says 14.1 gph @ 3000 rpm and 32.0 gph @ 4800 rpm. That's per engine, of course. Props are 24x22 4 blade, with a 2.8:1 drive ratio.

 

[Hampton]

It can't be too different from a 340. Just to get you some info until 370 owners chime in, I'm thinking you will burn around 17.5 X 2 at a slow cruise (on plane). Maybe about 35 gph at 22 to 25 mph. I would guess that you would get about .7 mpg on a calm day with moderate loading and a clean bottom.

 

[VinceR]

Posted - Jan 12 2007 : 21:09:37

​

Some Test Results on a 370 DA, 7.4 gas. You would get more around 0,70-0,75, but around 190 range

Test Results


RPM MPH Knots TotGPH MPG NMPG Range

1000 6.7 5.8 4.0 1.68 1.46 415
1500 8.9 7.7 7.6 1.16 1.01 288
2000 10.2 8.8 12.6 0.81 0.70 199
2500 12.7 11.0 18.0 0.71 0.61 175
3000 20.0 17.4 26.2 0.76 0.66 189
3500 26.6 23.1 38.0 0.70 0.61 173
3800 30.0 26.0 46.0 0.65 0.57 161

 

[Big Al]

There are some info in this thread also:

http://clubsearay.com/forum/showthread.php?t=15612