KimberlyAnn
2011-06-08 02:30:47
i have a 35ft narrow beam semi displacement troller that i just bought and am fixing it up to go trolling and it has a 3-71 in it can anyone tell me what it will burn GPH at a cruize ?
kjwelder
2011-06-10 05:59:22
I had a 371 in my first boat, a 40 woodie with a 5' draft. At 1200 rpm with a 509 trani I burned about 4 gph at 6.8 kts.
Your boat's hull speed, the trani, at some other minor factors like timing, weather and comfort will determine your fuel consumption more than make and model of the engine.
good luck,
kj
KimberlyAnn
2011-06-11 04:46:19
opps just checked it more closely and its not a 3-71 but a 3-53 instead .
KimberlyAnn
2011-06-16 22:24:44
I got to talk to one of the previus owners and he told me that the boat run 9 knots at 2100 rpm but couldnt tell me how many gal per hour it burned , i am guessing 3gph at 1500-1800 rpm does that sound right to any one ? i am just trying to figure if i need to ad more fuel capacity or not it has 160 useable to make the trip from west port to south east Ak.