View Single Post
      11-29-2012, 09:16 PM   #21
z4z4z4
Lieutenant
z4z4z4's Avatar
United_States
45
Rep
548
Posts

Drives: 2002 M3
Join Date: Mar 2010
Location: mild mediterranean breezes

iTrader: (1)

Quote:
Originally Posted by Pacemaker1000 View Post
speedo readings please?


]
You can lookup the diameter of various size and make of tires to determine the variable to plug into the formula. Diameters vary by tire manufacturers for the same sizes. It's not an exact science as temps and pressure are variables to acknowledge.
I used the PSS 19" diameter for 265-30 for the following graphic of a spreadsheet.
__________________
Sold 2011 Z4, kept 2002 M3
PM for various e89 parts 4sale.

Last edited by z4z4z4; 02-04-2015 at 01:39 AM..
Appreciate 0