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      09-13-2011, 09:27 PM   #15
shiv@vishnu
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Drives: X1, 335i
Join Date: Sep 2006
Location: SF Bay, CA

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Quote:
Originally Posted by Singletrack View Post
Very interesting post - thanks a lot for all the detail and transparency! Some really nice features in the procede. Also confirms that some tuners are probably leaning out the engine a bit to make power.
Thanks. And yes, the tunes are leaning the fuel curve out a bit at high RPM. In the low end and midrange, they are probably enriching things a bit since it doesn't seem to result in any power loss and presumably provides a bit more knock suppression/timing stability. At least that is what I'm doing