Fuel consumption variance

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Jorgegg
Posts: 29
Joined: Sat Aug 02, 2014 8:27 pm
Boat Year: 2014
Boat Mfg: World at
Boat Model: 255dc

Re: Fuel consumption variance

Postby Jorgegg » Fri Oct 16, 2015 8:37 pm

Thanks everyone for the responses. Looks like its not as big of an issue as first thought.

smeash
Posts: 50
Joined: Sun Jan 27, 2013 11:09 pm
Boat Year: 2011
Boat Mfg: world cat
Boat Model: 29 cc

Re: Fuel consumption variance

Postby smeash » Sun Oct 18, 2015 10:31 am

All 3 cats Ive owned the starboard motor burned more fuel. Normal.
2006 WC 330TE, 2014 Yamaha 300's, Dual Garmin 8212s, GHP 20, GSD 26, GMR 404, "Tunnel Vision"

Freeryde
Posts: 12
Joined: Sun Aug 30, 2015 11:34 pm
Boat Year: 01
Boat Mfg: Worldcat
Boat Model: 266sc

Re: Fuel consumption variance

Postby Freeryde » Tue Oct 20, 2015 9:06 pm

I guess you are running both engines at the same rpm? Most twin engines are not tuned to have both controls line up at the same rpm. One arm will be slightly ahead of the other. Just a thought that maybe you are just moving both throttles forward level and that makes one engine run at a higher rpm

Freeryde
Posts: 12
Joined: Sun Aug 30, 2015 11:34 pm
Boat Year: 01
Boat Mfg: Worldcat
Boat Model: 266sc

Re: Fuel consumption variance

Postby Freeryde » Fri Oct 23, 2015 1:03 pm

Are you sure you are running them at the same RPMs?

Follysbest
Posts: 4
Joined: Sat Dec 03, 2016 8:31 pm
Boat Year: 1999
Boat Mfg: World Cat
Boat Model: 266 SC

Re: Fuel consumption variance

Postby Follysbest » Sat Dec 03, 2016 9:15 pm

I thought I had the same problem until I installed the new Simrad display. The Suzuki digital RPM gauge showed both engines as one. When I brought the engine RPMs up on the display it showed each engine. What I saw was although the throttles appeared to be even, the starboard engine was running at a higher rpm. A normal trip has the boat running over 100 miles. Once I found this and adjusted the throttles and subsequent fill ups have been much more even.

Hope this helps.


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