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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Optimum AFR for DI?



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      01-04-2008, 08:13 PM   #1
dadasracecar
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Optimum AFR for DI?

So forgive me for intruding here but I'm curious about the best AFR for direct injection. I've lurked and found several examples of what appear to be very lean afrs on dyno plots. Can anyone speak with authority about the optimum afr for DI? Shiv?

Examples:
http://www.e90post.com/forums/showthread.php?t=29708

http://www.e90post.com/forums/showthread.php?t=105342

http://www.e90post.com/forums/showthread.php?t=105080

http://www.e90post.com/forums/showthread.php?t=104489
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      01-04-2008, 08:32 PM   #2
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You might find more response in the FI section. Lots of tuning knowledge in there.
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