Originally posted by DerekB
A couple of answers here.
Dynos are not designed to provide on-track data. Purely a tool to see which motor provides more power on the dyno (one of the reasons why the quote "We don't race on dynos" is true).
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True, but a simulation, particularly a repeatable one, could indicate the suitability of an engine to a particular track type. For instance an engine with lots of top end and little on the bottom might not show well on a short twisty treak.
Remember that other saying: "Horsepower sells engines but torque wins races."