Quote:
Originally Posted by RobertSmalls
A power meter on a car would immediately quantify the benefit of a new grille block geometry, or of front wheel skirts. It would be sensitive enough that you measure the energy consumption of the 10kg of tools you left in the car, and it can help you decide whether to open the window or turn on the fan. Do it. The feedback is way more precise and immediate than that of a ScanGauge. |
Perhaps, but it is still subject to all the other confounding factors that would invalidate the data that the device is providing.
I realize you know this, but some people reading this might think that a super accurate meter automatically equals valid data, but it doesn't.
If the user doesn't attempt to control for external variables as much as possible (eg. speed, grade, road surface, vehicle weight, wind, engine/drivetrain temperature, traffic, other vehicles' effects on your aero, cruise control vs. driver's right foot, etc. etc.) then
comparisons between state A & B are suspect, regardless of the measuring tool.
Just saying.