Quote:
Originally Posted by Ryan Z
Maybe your car has tires that are not factory size. Only takes a couple minutes to check. Different size can change speedo reading.
Try this site to check the percentage & mph difference.
www.miata.net/garage/tirecalcold.html |
Thanks, I thought of that but my tires are correct. It is the 3.07 diff that is giving me the trouble, as it turns out.