Not sure if this one has been posted yet, but there's some good info in it that's for sure. 23 pages of lot's of tech-geek-engineer talk but if you take the time to sift through it all there's some useful stuff for us tuners. This one little tidbit was my favorite, in the LNF (Turbo Ecotec) world I've been telling guys for a long time now that it's not worth going full E85 in our cars. Here's what they say...
"For fuel blends above E20 the maximum torque curve was not significantly limited. E20 can provide 97% of the peak torque of E85."
Here's the link to the pdf...
http://delphi.com/pdf/techpapers/2011-01-0900.pdf
Happy reading and I'll be waiting for everyone's testing and findings on their own cars! I've been on E47 in both of our LNF cars for a year and a half or so and have had great results.
(I'm gonna post this in the V/8 section too, not sure if that's considered double posting? We don't have a "general" tuning section here do we?)