Originally Posted by BMWM.D.
Ahhh... Makes sense. I have a link to E85 stations, but didn't think that it was at Vandenburg. I might try the E85 thing, although I just emailed Terry and he claims he runs the NOS stuff at all times and it basically makes our 91 into 93 octane. I trust him as he's probably dyno'd more N54 cars than anybody on the planet.
I'm trying to get comfortable with the Cobb logging. It's just SOOOO much different than the HP Tuners stuff I use for GM tuning. I downloaded Virtual Dyno to plot my logs, and my timing corrections didn't look too bad. A little bit down low, but not any in the midrange to top-end.
Here's a link that does a good job of summing up the Cobb datalogging basics http://www.e90post.com/forums/showthread.php?t=696472