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      05-09-2012, 09:22 PM   #20
phazen23
Second Lieutenant
 
Drives: 335xi
Join Date: Aug 2011
Location: washington state

Posts: 211
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Quote:
Originally Posted by woptang22 View Post
Thank you very much for graphing that for me. I really appreciate it. Now if someone can tell me what all this means? lol
Unfortunately, I'm still learning how to differentiate a good run versus a bad one, but I see:

a) only one gear being logged. Ideally 2 or more are preferred, I think 3rd and 4th are the favorites, though it can be difficult since you're going pretty fast at the end of 4th.
b) no timing corrections, which is good. Timing corrections happen when your tune is too aggressive or your gas is too crappy.
c) inlet air temperature looks good
d) some minor throttle closures at the beginning. Was your DSC on? DSC is usually the culprit, so its recommended to turn it off while you do data logs.

FYI, I also didn't turn on all the options you logged. Someone please chime in if they need something I deselected.
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