I think Jedi's method without the vss is solid enough. Once he gets GPH(gallons per hour) on the MPGuino calibrated to match the GPH on his OBDII derived fuel consumption instrumentation he will have a solid comparison with what the actual fueling of the engine is vs what the computer is reporting. If those numbers match (or show a strong correlation) on a few runs bliping and not bliping the throttle it will demonstrate that the data he gathered earlier is good rather than an artifact of method he used to get the data.
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