Can I put my 93 tune back in?

[Bluemustang]

OK, so I've been running the Lund FF tune for a few weeks now, alternating E85 and 93. I want to switch back to my Bama 93 tune, but I'm not sure how much E85 is left in the tank.

I ran it full tank e85, then ran it down to 5 miles on the dash, loaded up full tank of 93. Ran that down half a tank and filled up the rest of the way with 93 again.

My AF ratio still reads 13.0-13.6. But it did that before on the FF tune solely on 93. Can I reload with my 93 tune or should I run the tank dry again?

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[wildcatgoal]

I wouldn't have an issue with it, personally. Don't know why you'd want to go back to a Bama tune over Lund, which consistently has been reported to have a better result.

 

[Bluemustang]

I wouldn't have an issue with it, personally. Don't know why you'd want to go back to a Bama tune over Lund, which consistently has been reported to have a better result.

Mainly because I liked the Bama tune a little better. But also because I'm not feeling better results with the Lund FF tune. I think it's running rich and just doesn't run as well. In addition, the shifts are a little too hard for my tastes. Plus, I don't like the higher idle RPM that Lund gives.

The bigger reason though is I am leery of the E85 running stock injectors. I'm not confident in the FF logic from issues I have seen reported from other users. Plus, on 93 the car is running rich and won't get to a 14/1 AF ratio. It doesn't seem to be running the way it did when I first loaded it. At first, it felt great and I was peeling the tires with little effort, but now it feels sluggish, as if the FF logic is not working right.

Now with some of the concerns out there with running E85, I'm not sure if it's a risk I want to take. The Bama tune is plenty fast believe me.

I haven't datalogged the Lund tune yet, but I just want compare the two now that I have had some time with the Lund tune.

 

[NasaStang]

The cars have adaptive learning and will adapt to the driving habits, if you do alot of daily driving traffic etc, car will start to feel that "sluggish" feeling, that is probably what you are experiencing, the tune has not changed.

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