Quote:
Originally Posted by mikels
MAF sensor allows more precise air measurement as well - when you think about it, mass air calibration is calculating the mass air flow from MAP, displacement and RPM to determine engine operation. Better to measure actual mass flow and redundantly calculate for better control.
Dave
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Thanks again for the detailed response and willingness to share. Those additional E67 sensor inputs make sense - similar actually to what I see with the late model Mustang GT500 tunes we've done, although the Mustangs are messier because of the "torque demand" throttling strategy.
I completely agree with all you said, but I think you might have meant to say that Speed Density calibration is calculating mass air flow from MAP/RPM/displacement? I'd completely agree that a properly calibrated MAF sensor is not only precise, but also provides compensation/insurance against all kinds of other variables that affect air mass (intake manifold heat, intake valve temp, spark variation due to knock retard, etc).