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Old 03-08-2009, 04:57 PM   #2
Join Date: Jun 2007
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Location: San Jose, CA
What I Drive: 2004 Infrared SVT, EAP #1440

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yes, the extra weight makes a big difference. I think the ratio is you need 10 more HP to move an extra 100lbs at the same rate... or something like that.

the wheel/tire combo could be the biggest difference though, depending on how heavy the 15" steelies are. unsprung weight has the biggest impact on acceleration.
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