Before we started the tuning process, I was told that with the Stage 1 cam I would need two separate tune files, one for 93 and one for E85. I finished my tuning with Dusterhoff in July.Never heard this before. When was this?
I have their stage 1 cam and I'm on flex tune.
We started with the 93 tune and went through the logging/revision process until they were satisfied with the results. I then ran the tank down, switched over to E85, and they provided an initial E85 tune. We went through the same logging and revision process with E85 until we had the final calibration.






