Fuel consumption?

[Ranger]

I've got specific questions that I can't afford to "field test" myself right now.

What's the hourly fuel consumption of a LB7 at idle, 1200 rpm high idle, and 1800 rpm high idle?

Thinking of things and plans and it'd be nice to have numbers to work with.

 

[BudTX]

If each injector uses 8.7 cubic millimeters (mm3) of diesel per revolution (and I am making an edjumacated guess):


8.7mm3 per injector x 4 injectors firing per revolution = 34.8mm3 per revolution

x 650 rpm idle

= 22,620mm3 per minute

x 60 minutes

= 1,357,200mm3 per hour, or .358 gallons per hour


8.7mm3 per injector x 4 injectors firing per revolution = 34.8mm3 per revolution

x 1200 rpm idle

= 41,760mm3 per minute

x 60 minutes

= 2,505,600mm3 per hour, or .662 gallons per hour


8.7mm3 per injector x 4 injectors firing per revolution = 34.8mm3 per revolution

x 1800 rpm idle

= 62,640mm3 per minute

x 60 minutes

= 3,758,400mm3 per hour, or .993 gallons per hour


Quality of diesel may affect these numbers, but it gives you a general idea.

 

[saratoga]

My scangauge is concurrent with Bud's calculations with the transmission out of gear.

 

[Ranger]

Awesome. Obviously I'll have to do testing at load, but that's good enough for my purposes now. Thanks!

 

[durallymax]

Ive always been told around .4 gallons per hour, so Buds calculations would be correct.

 

[merlin5577]

Quality of diesel may affect these numbers, but it gives you a general idea.

:iagree:

Winter fuel will be consumed at a higher rate due to the lower BTU content of Kerosene.