Ok, I see your point. If I take a gasoline tune and go across the map and increase it by 31%, the car will run like crap. I've found about 21 to 25% is what works. Then if you set target af of 15.1 give or take, see what the car likes, it'll use less fuel. I'm not here to argue, I'm just sharing what I've learned and experienced running it in my own cars and others. I'm going to keep it to myself from now on.E10 stoich - 14.1
E85 stoich- 9.7
Is that not 31% ?
I've not seen anything run well at 1.08 lambda