Drivers attempt at E85

[driver311]

So after talking to several of my friends with evos who run it and my buddy with a direct injected turbo cobalt who runs 50/50 e85/pump, I decided to just try it. My buddy with the cobalt said he just started at 10% and went up for there and stopped at 50/50. He told me his car pulls way harder on e85, especially after adding some timing. Anyways so i headed to the pump.

I decided to just start at roughly 25% e85 and see what it does for me. I threw in 3 gallons of e85 and then topped my tank off with 93 octane and off I went. Started by driving around for 10 miles to see what my afrs and stft's looked like. Everything seemed exactly the same, but I didnt know what to expect. I just figured it would lean out a bit, but so far all was the same. Anyways I did one log on the way to the station just for comparison. I have many many logs and my shit always seems pretty close. Tune is pretty good. But for some reason on this one log I got a little bit of knock in 4th. Weird thing is this is the first time with my new tune Ive logged any knock. So im not gonna even worry about it cause im sure it was nothing, and it didnt do it in 5th or on any of the logs afterwards. So here is what I have so far. Ill post more as it comes. This tank will be all 25% e85. Then Ill slowly go up from here.

First log was all pump 93 octane on 19psi. Then the next two logs are on 25% e85 same boost.