Quote:
Originally Posted by phunk
The dependency I believe you are missing is that a MAF sensor is not "boost-smart". Once you are using the MAF sensor in a blow-through application, while you will maintain repeat-ability in the installed application (hence still allowing for a consistent and safe tune), there is no longer any direct correlation between MAF voltage and PPM of air.
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I agree with that 100%. I would suspect with higher pressures your going to have more air available to cool the sensor and "fool" it under pressure. That explains how on a NA car you can still see ~4.6 volts yet it still works under boost which much larger flow rates.