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      07-26-2012, 11:07 AM   #28
clarence
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Drives: F30 328i M-Sport
Join Date: Mar 2006
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Quote:
Originally Posted by grimlock View Post
I know they bin LEDs, but what varies in an engine that would give it a different intrinsic output? I would imagine the differences would be very small, hardly require binning or no?
For example if the engine didn't produce the required power & torque over the quoted rev range for a 28i (which is very wide), then it'll be used as a 25i or 20i.
For all things mechanical, there's always a performance variance between examples.
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