Quote:
Originally Posted by drmiller100
what you could get is instantaneous mpg.
which is meaningful.
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For back to back under controlled conditions maybe. Question was about generating a BSFC map and the errors in the fuel calculation in the ECU make this too inaccurate to be useable (in my opinion).
Reason for inaccuracy: fuel flow is calculated as a function of rail pressure and injection duration for a nominal injector. Injector flow particularly will vary, and needle lift vs electrical pulse will also be inconsistent.