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California98Civic · 08-27-2015, 01:00 PM

I routinely climb a 1.5 mile steep grade hill in fourth (I have the super tall VX/CX gearing), which I allow to drop to 1500 RPMs before shiftng to 3rd at about 38mph. I do that at part throttle, but about 75-80% load. That is not lugging by any definition I am familiar with. The ECU compensates for fueling issues. It actually leans out the fuel mixture very nicely. Here is a good discussion on a good discussion board:
How can I tell when I'm lugging my engine? | Mechanical /Maintenance Forum | Bob Is The Oil Guy

I hope that is helpful.

James

08-27-2015, 01:00 PM	#4 (permalink)
California98Civic Cyborg ECU Join Date: Mar 2011 Location: Coastal Southern California Posts: 6,299 Black and Green - '98 Honda Civic DX Coupe Team Honda 90 day: 66.42 mpg (US) Black and Red - '00 Nashbar Custom built eBike 90 day: 3671.43 mpg (US) Thanks: 2,373 Thanked 2,172 Times in 1,469 Posts	I routinely climb a 1.5 mile steep grade hill in fourth (I have the super tall VX/CX gearing), which I allow to drop to 1500 RPMs before shiftng to 3rd at about 38mph. I do that at part throttle, but about 75-80% load. That is not lugging by any definition I am familiar with. The ECU compensates for fueling issues. It actually leans out the fuel mixture very nicely. Here is a good discussion on a good discussion board: How can I tell when I'm lugging my engine? \| Mechanical /Maintenance Forum \| Bob Is The Oil Guy I hope that is helpful. James __________________ See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.