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      10-15-2011, 07:55 AM   #7
Echo M3
Drives: E90 M3
Join Date: Sep 2009
Location: NY

Posts: 1,431
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Originally Posted by E90SLAM View Post
I wonder how much engine power is left at this altitude?
I was wondering the same thing - I don't know! I know that you can lose as much as 20% at 5,000 ft, so at 18k has to be a substantial loss.
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