Quote:
Originally Posted by -Willis-86touge
Stock at 7500 rpm with stock tires is 175
With 245/40-18 @ 7500 rpm math works out to 184
Sorry to say I didn't use your formula humfrz just used a basic program that figures tire size and gearing.
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Well now, Willis-86touge, that basic "gear limited" program is just fine ...... but it doesn't factor in the air that the car has to push out of the way .....
Down here on earth, pushing air out of the way is a big factor, especially at higher speeds........
humfrz