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Old 12-26-2012, 09:19 AM   #6
jsr72
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Join Date: Apr 2012
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Location: n/a, United States
What I Drive: 2012 Focus SE

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Quote:
Originally Posted by Slo86GT View Post
x4...

So it's more like driving without an adult male in the passenger seat everywhere you go.
No, not x4. Removing 1 lb of wheel weight would be like removing 1.3-1.4 lbs of equivalent mass, per wheel. Doing that for all four wheels, using say 1.38lbs x 4 = 5.5 lbs.

Here's a nifty calculator that does a decent job of estimating rotating inertia for wheels and tires.

The Effects of Rotational Inertia on Automotive Acceleration
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