"The results showed that the E-10 and E-85 fuels improved energy conversion efficiency but the specific fuel consumption increased when the engine was run on E-85"
http://www.michigan.gov/documents/CI...E-_87915_7.pdf
There was one more by MIT I liked but for some reason pdf doesn't want to let me open it again. Using a 2.0 gm turbo DI engine pretty sure cobalt SS, same or similar engine is being used in Malibu's now instead of the V6. It got real technical and over my head quick. Talks about the advantages of using E85 with turbo and it may even eliminate the need for intercoolers as E85 can tolerate higher intake temperatures.
"Effect of Different fuels on a Turbo Charged Direct injected engine"