Quote:
Originally Posted by E4ODnut
I'm assuming that the graphs posted by Old Tele Man show results for an engine tuned with A/F ratios for best power, ~ 13:1 or so. It would be interesting to see what would happen with a leaner mix, say ~ 16:1. Obviously power loss would likely be significant, but I'm thinking that FE should improve at lower loads where a greater throttle opening would be required to generate the same power as with a richer mix.
Comments?
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look up lean burn. the basic idea is you are cruising down the freeway at 60 mph. lean the mixture down to 20 to 1, requiring more throttle to keep the flames lit. at the same time, advance the timing a BUNCH (30 degrees plus).
do it all right, EGT's drop, economy goes up. Do it wrong, you get detonation.