View Single Post
Old 04-23-2017, 09:29 PM   #237
humfrz
Senior Member
 
Join Date: May 2013
Drives: 2013 FR-S, white, MT
Location: Puyallup, WA
Posts: 30,432
Thanks: 29,826
Thanked 32,845 Times in 16,844 Posts
Mentioned: 715 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by -Willis-86touge View Post
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.
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
humfrz is offline   Reply With Quote