Weight has almost no impact on top speed, its just drag and horsepower. Weight might have a very minimal impact, more rolling resistance maybe. But 400 lbs lighter might give you an extra 1mph top speed at best.
If you dropped 800lbd off your Z, you have the same body (same cd) and same power, same top speed, or at least very close.
Last edited by NissanGuy23; 10-04-2012 at 09:27 PM.
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