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E4ODnut · 02-28-2012, 12:36 PM

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?

02-28-2012, 12:36 PM	#33 (permalink)
E4ODnut EcoModding Lurker Join Date: Nov 2011 Location: Gibsons, BC Canada Posts: 39 Thanks: 0 Thanked 4 Times in 3 Posts	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? __________________ Robert '95 Ford E150 4.9L I6 Megasquirt MS1 Custom MSnS Extra '92 Winnebago Elante 33 RQ Ford 7.5L V8 Megasquirt MS1 Custom MSnS Extra '93 Bayliner 3288 Twin Ford 5.8L V8s (351 Windsors) converted to tuned port EFI. Megasquirt MS1 Custom MSnS Extra