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      02-05-2013, 02:40 PM   #67
Venom
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Drives: M2 Competition
Join Date: May 2011
Location: East Bay, CA

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2008 BMW 135i  [8.50]
Quote:
Originally Posted by whostorm05 View Post
Thanks Venom. Can you think of a purpose for running both at the same time?
Yes, a piggyback has access to different modules compared to what the flash can access. "The BMS JB4 back end flash transfers fuel control from the JB4 to the DME and adds VANOS tuning, higher than OEM ignition advance, and a host of additional flash map changes"

In other words, BMS uses a different set of variables to modulate power output in comparison to Cobb. I don't remember offhand how they work. The answer should be in this thread: http://www.1addicts.com/forums/showthread.php?t=447410
I wasn't able to find it though. Shame Bryce isn't around anymore, I would have suggested you ask this on that/his thread.
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