Fuel Consumption

[DW]

Interested in knowing if this estimate matches others who track fuel use / consumption. Not measured with a lot of precision, but an estimate over a season of slalom skiing in the course. Mid-late 90's boats, so engine speed to boat speed is ~100:1 & boats are under 3000 lb, mostly 34 mph & 36 mph runs. Use cycle is generally 2 people running 6-10 slalom sets on a tourney lake dropping at both ends, idle and go. Each "day" of skiing clocks ~1.1 hours on the hourmeter for 4 sets of the 6-10 passes per set. Fuel consumption runs at 4.3 gph for one boat and closer to 4.0 gph for another boat. Neither boat does anything other than pull a skier or an occasional footer, no joyriding or other activities, simply slalom tug duty.

[matthew]

I have been tracking usage in our 04 SN196 with the 5.7 330hp.

Consistently returns 17.0 - 17.7 L/phr, we normally run at 2500rpm (or trick/ wakeskate) for a 2mile transit to and from the course from the boat ramp and then sets of 6 passes at 55k or 49k with motor idling between passes.

 

When our course was pulled last December we started barefooting again and returned a lower rate of consumption at 16.2L per hour at 40mph+.

 

My method of estimating consumption was to fill the tank run and refill at bowser compared against the hourmeter.

 

 

[rockdog]

There are some things I just truly don't want to know.

[ALPJr]

Our 92 MC used between 3 to 3.5 gal/hr during slalom sessions at speeds between 30 and 34. An a average morning was 3 sets at 34 and 2 sets at 30 and would use about 6 gallons of fuel. 285 hp, power slot, OJ 454 4-blade.