Quote:
Originally Posted by CobraEd
A fatter figure skater will rev faster than a thinner figure skater unless they are wearing a blue outfit with ruffles or if there is a full moon out.
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lol, one last crack at it and then let them believe what they want to.
Less rotating mass = less inertia to move it (in this case spin it up or slow it down). Your engine's rotating mass is a parasitic drag on the motor, stored energy does nothing for you in terms of car acceleration*, the less rotating mass the less parasitic drain on the motor.
*unless you can rev it up and dump the clutch like in a 1/4 mile launch.