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      11-28-2012, 09:48 AM   #165
Joshboody
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Drives: pickemuptruck
Join Date: Jul 2009
Location: Phoenix, AZ

iTrader: (7)

Air density is always more powerful then mechanical advantage, BUT both is even better. The CR limits are because of knock, but DI allows higher CR (less knock) so you really can't compare to PI.