Sweet Spot Defined?

[WMcGuire]

I've noticed there is a wide variation in what owners define as the "Sweet Spot" in their Cummins powered trucks, some think it is when the engine is running the most efficiently and economically (can you feel that?)



Some believe that the spot is when the engine seems to be generating its power effortlessly (at a given rpm with slight throttle, just begging to be worked a little harder (seat of the pants feel) like the young filly in the starting gate. .



Then there are some who believe the spot is when the engine is putting out maximum power without feeling overworked, happily churning out the miles with no complaint.



I'm of the opinion that the sweet spot has little to do with economy, the best MPG will be just below the point you can feel the power, when you feel the power that means the engine is getting more fuel to match the load or to overpower the rolling/ wind resistance



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[jjdiesel]

Sweet Spot, for each gen

Issue 55, page 18, par 10.

 

[jelag]

To me when you talk about the "sweet spot" you need to add a word or two to define what your talking about..... the HP sweet spot, torque sweet spot, or fuel mileage sweet spot... . each of these is a different number to me... . and from what I can tell after several trucks..... 10 over the past 10 years. . you can't feel any of the ones that I've mentioned above... .

 

[JHardwick]

I like mine right around 2,250 in 6th with a load

 

[LesStallings]

Heavy load, 2,200 RPM, and watching the other brands fade away behind...



Now THAT is sweet!