On my commute in this morning, I managed to squeeze out 86.0mpg over 40.7 miles. The outdoor temp is currently 47 degrees, my tires are at 50#, I have the radiator block in place, traffic was about as close to ideal as physically possible (left the house at 4:30am).
My morning commute (each way) consists of about 10 full stop/starts, 15 miles on surface streets going 40-45mph, and 25 miles in the freeway avg 55-62 mph or so (maintaining lean-burn 100% of the time, except for purges). There are hills on the freeway every exit and I'd say they're about 30-50 ft high. There can't be more than 2-300 feet of total elevation change between my house and work.
I guess my question is, under these conditions, what is the absolute best that I can expect on a regular basis? Will I get any more FE with the Hot-Air mod? I don't have a problem holding lean-burn, so what does "extending the lean-burn window" mean? Does it mean lean-burn is easier to get into/hold, does it mean that at the same speed, lean-burn is more efficient, or both?
My morning commute (each way) consists of about 10 full stop/starts, 15 miles on surface streets going 40-45mph, and 25 miles in the freeway avg 55-62 mph or so (maintaining lean-burn 100% of the time, except for purges). There are hills on the freeway every exit and I'd say they're about 30-50 ft high. There can't be more than 2-300 feet of total elevation change between my house and work.
I guess my question is, under these conditions, what is the absolute best that I can expect on a regular basis? Will I get any more FE with the Hot-Air mod? I don't have a problem holding lean-burn, so what does "extending the lean-burn window" mean? Does it mean lean-burn is easier to get into/hold, does it mean that at the same speed, lean-burn is more efficient, or both?