The 3794 has a 1.15 hotside, and the Borg warner 1.0. The 1.15 is way big and was picked prior to its arrival at our shop, unless you plan on running the engine out to 10k. We really didn't want to do this until there is a accumulator or dry sump system in place in the event there is a sudden change in oil pressure at that level.
Once we post the final graph on the borg warner, you will see there is more left in it. I had to cut the tuning session a bit short as we had a track reserved and waiting for us at the time.
Regarding the e85, I assumed there would be an improvement as I wasn't really feeling the c16 at the edge of its octane. I was still surprised to see such a large gain as I haven't had the opportunity to test them back to back before.
Once the driver adjusted to the new power at the track later that day it ran a 10.6 at 141mph. Right after this we ripped the rear pinion in half. His goal is 9.5's in the 1/4 mile. Based upon the power level he is at right now with perfect driving w/ a dog box he should have been close to a 9.9 or 10.0. The car is a heavy pig though, so its going to take about another 100hp to reach his goal. This turbo probably wont get us there, but probably the next size up will. Either way its a blast to drive it hits hard at 5k and pulls all the way to 8k.