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      04-14-2014, 09:24 PM   #22
Second Lieutenant

Drives: 1M
Join Date: May 2011
Location: Dallas, Texas

Posts: 239
iTrader: (1)

Originally Posted by bdaddylo
Originally Posted by p66 View Post
My rear tires are a smaller circumference and my speedo is not accurate. I don't even bother to look at it on straights. It must be the drag from my go pro.
Mark and Robert are both referring to their speedo readings which are over overstating actual speed due to BMW's speedometer safety factor and their smaller track tires. Your 139 mph is probably the max for a 1M at COTA.
Whew, now I can cancel that nitrous system.