E85 AFR

[Innovate803]

I have searched and cannot find what guys are running for AFR on E85 for a stock motor Gen 2. The only thing I found was a guy running 12.8. That is fishy to me because the stoic ratio is 9.7:1 for E85.

 

[SSGT_B]

Run in lambda and it’s easier to get the readings you want. 12.8 afr on e85 is dangerous for the motor.

 

[SSGT_B]

 

[Innovate803]

Run in lambda and it’s easier to get the readings you want. 12.8 afr on e85 is dangerous for the motor.

Alright, I will try it first. I am basically tuned at .87 Lambda right now.

 

[Dennis]

The guy who said 12.8 probably didn't change the fuel in the ECU/wideband. AFR is just lambda x stoich so that will work. First time we ran E85 that is what we did, just add 30% to the table then tune to gasoline AFR as I don't recall a way to change to lambda or switch fuels.