Has anyone tried E85 with Edge canned tunes? I sawsome information that alot of racers are now using E85 because of it's high octane ratings and lower cost. Just wondering if anyone has tried it and if there are any adverse affects other than MPG decrease...

 

I have an FFV and an new Edge that I'm loading today, just have not found e85 gas at a reasonable price.

 

The tunes are mapped for 87 and 91 octane canned tunes. Dont run anything except for what the vehicle is tuned for or it could cause issues with the vehicle. Kinda of like you dont run the 87 octane tune with 91 octane gas and vice versa.

You can get E85 tunes with the gryphon if you want them. I ordered one for mine but havent gotten my custom tunes yet to try them out.

 

My understanding is that we need to go back to stock to run e85.

 

If you have a flex fuel vehicle (and greencrew, I think you do), I seem to recall that there is some sensor somewhere in the the system that recognizes E85 and that tells the PCM to make some adjustments. (It would be a VERY simple change if there IS such a sensor - it's an easy software adjustment).

The situation DOES get murky if you are running a canned tune from ANY programmer. Will this tune override the software adjustment? My guess is, it can. Possibly the hardware vendor could shed some light on this.

A custom tune though, can restore the needed changes.

So, greencrew, I like your answer if all you have is canned tunes.

- Jack

 

I did fill up with E85 and left the tuner on level 3. No problems so far, but it does not seem to have the same performance as it did with 93 octane. There does not seem to be any noticible detonation or signs of trouble, just no perceivable gains.

I have noticed a slight drop in economy as expected.

Looks like I will just go back to 93 octane, but it was worth a shot...

 

I suppose I could call tech support and ask them.

 

If you run E85, run your stock tunes. I'm pretty sure the EDGE doesn't adjust for it seeing as you have to switch modes for each octane level.

 

I called tech support and they suggested I run on level 3 due to the higher octane of e85.