The gear change with no tire size difference equates to a 21% difference.
I've attached a really neat calculator that will take tire size, rear gear ratio and transmission ratios to provide an RPM per MPH value for each gear. Hopefully it's useful.
Take care.
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Bill Cohron - The Mad Doctor
Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1996!
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Last edited by Power Hungry; Tue, October 20th, 2009 at 11:25 PM.
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