Quote:
Originally Posted by Drifter
Today you'd probably also want to be able to tune the electric throttle body, EGR, valve timing/lift, etc. To get the most out of tuning it a bit leaner, you would probably adjust all of those other parameters until you were able to make the required horsepower at that particular rpm with the minimum amount of fuel.
Most lean-burn tunes only target very light loads.
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Howdy Drifter! I get that lots of things need to change in addition to the AFR. There's apparently a complex relationship between peak combustion, ignition timing, cam shaft angle, emissions mixture, and whether Jupiter's moons are ascending or descending.
I'm not actually interested in learning or doing all that. I'm interested in getting a known reliable product of some sort that has done all that hard work for me.
I'm only interested in the lean burn under a light load, namely highway speeds. Champrius spends 75%+ of her time in cruise control at 65mph, so changing the fuel map / other parameters between 55mph and 75mph with peak efficiency at 65mph would be perfect.
To oil pan, I'm only interested in getting better fuel economy, and would actually be happy to *trade* HP / performance in order to get it. But it seems like most of the things I would get assume that performance is the priority, with mileage an afterthought. I haven't been able to find a dedicated "fuel economy" product, only "performance" chips.