Quote:
Originally Posted by abently
The RPM's can't be the same, because say you use 8Kw of power to cruise at 60km/hr, that 8Kw of power at 14.7:1 occurs at say 1500rpm, and at 17.7:1 occurs potentially at 1700rpm. Therefore shifting your cruise rpm into a lower bsfc zone.
Remember max power for most engines occurs around 12.5:1 AFR's and anything beyond that reduces power.
I had a wideband system from way back (LM-1) that outputs a narrow-band signal so I've used that to set my Closed Loop mixtures.
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12% is a very nice gain! Good Job
I use a voltage divider on my MAF to achieve lean AFR's. I usually target 17:1. Typically, on flat ground, don't need to increase rpms, however the LOD on my SGII goes up. Climbing hills while lean requires more rpm though.
Can you detail how you have your lean burn system wired up?