Roush vs 427FE vs Keith Craft

[CobraEd]

Originally Posted by AL427SBF

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.

Very eloquently stated, however your talking points are loaded with logic and empirically proven concepts. Unfortunately, given what we have read earlier, none of that applies here.

If I could add one additional new point just to add some flavor to this discussion, not only does the heavier big block crank add more parasitic rotational drag on the motor, but the heavier big block rods and pistons add more parasitic drag on the motor due to greater reciprocating mass. Let the games begin !!!!



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