Originally Posted by husam2012

Why would you ever attempt to run E85 without a tune?

The car is definitely running very lean at the moment, especially WOT as the car can correct up to 25% during idle/cruising but it will take a while for it to apply that to WOT fueling, and on top of it the injectors aren't big enough to go full throttle.

I would estimate that you'll be doing permanent damage after a few pulls.