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Old 03-06-2009, 03:35 PM
Joe Perez Joe Perez is offline
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Join Date: Jun 2009
Location: Charlotte County, FL
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I expect I should also clarify what I'm really driving at here.

If my supposition above is correct (that a wideband system calibrated for gasoline AFR will indicate 14.7 on a hypothetical engine in which 100% methanol is being burned at 6.5:1, because both mixtures correspond to exactly 1λ for their respective fuels) then the core issue becomes:

Let's say that I were hypothetically to set my wideband gauge (an LC-1 w/ XD-16) to display lambda rather than AFR. If we assume that MBT for gasoline is 0.85λ, and MBT for methanol is also 0.85λ, is it correct to assume that MBT for a mixture of gasoline and methanol (and water) is also 0.85λ, and that while tuning a turbocharged engine running said mixture of fuels, one should be striving to achieve 0.85λ?
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