I was assured by Mitch that the OTS map was good for ethanol contents down to as low as 70% and the ECU would adjust accordingly. Either way, I have absolutely no knock .. and that is the most important aspect in my eyes.

To clarify on my fueling, I'm at 86% injector duty cycle in 40° weather. I'm going to compare this to the coming spring when we hit 70°+ temps. I could potentially upgrade to 65mm and run them fine in the summer on E85.

I'll have some math to do in the near future

 

I agree 100% and have had outstanding support and success with Cobb ethanol cars! This car looks really great in the logs. Like a car that's been tune revised a few times. And it can be even stronger but it's getting past that point of sweet spot in this case. I'm really glad e understands and agrees. Understandably we always want more more more. Just goes to show the the effort that goes into the OTS maps as well as how different each car can actually be and how much hardware matters. Enjoy the car confidently in safely!

 

nothing substantial, just the required plugs and good tuning , and exhaust .