doo it! i paid $2.81 today when i filled up. 93 is about 2.30

 

Where the F do you live? 91 is 3.20 here and E85 was like 3.30 if I remember correctly.

I don't know how much boost I will be able to run with E85 when I make the switch. I'm only running a single walbro 255. Hopefully I will order two walbro 450's as a christmas present to myself. haha

 

Indiana is the 5th largest producer of corn in the US. I live in the city, 1/2 mile from the Highschool and there is a corn field behind our house. Just to give you an idea

a month ago it was $2.48

 

Yea, I filled up on E for $2.55 last time

 

What lambda are you guys targeting with E85? From what I've been reading, anywhere from .73-.77 is where ethanol likes to be.

 

I paid $1.72 for E85 yesterday. (had .70 off per gallon with my Kroger points)

 

Yeah, those numbers are a good range, but ethanol also has a wider tuning range than gas.

I'm tuned for 8.9:1 AFR on E48 and 7.1:1 AFR on E85.

 

.77 here or 1.30 Equivalence Ratio

stoich is set at 11.3 in my tune

 

Why is your stoich so high? E85 stoich is 9.76:1 or thereabouts.

 

its not true 85% ethanol

when i was tuning it i knew my part throttle fuel trims were 1-2% error when i was running regular gas.

so i ran the tank as low as i could and filled up with e85 then i just kept bumping my stoich down until my fuel trims were back to the 1-2%

and then i tuned WOT