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      09-17-2008, 08:46 AM   #21
and 1
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Drives: 08 135i, 88 M3
Join Date: Aug 2008
Location: Somerville, MA

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1988 BMW M3  [0.00]
2008 135i  [7.50]
Quote:
Originally Posted by Kirk@ActiveAutowerke View Post
I wouldn't rule out the dreaded 29.2/81 lag issue. Heat soak can also contribute to this. A hotter engine bay will lead to hotter air entering the engine. Hotter air is less dense, less density leads to less efficient combustion, less efficient combustion leads to lower horsepower output.
crap, this guy beat me to it...
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88 M3: BMWCCA J Sport
08 135: because streetcar

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