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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Flex fuel tunes available for Boosted Coyotes:
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<blockquote data-quote="helloWorld" data-source="post: 15156676" data-attributes="member: 142369"><p>I currently use Shaun's flex fuel tune on my NA coyote. I can confirm that timing at WOT is maxed out (at least on my car) to 27 degrees on both gasoline and pure pump E-85 (E-70 in the winter time.) I have actually used the flex fuel portion and it works well. I started with gasoline only and when I filled up with pump E-85, the transition was smooth. The only thing I had to do when I did that drastic of a fuel change was drive it around for a bit so that the ECU could learn ethanol content. Other than that, it is a working flex fuel tune.</p><p></p><p>Now, I run pump E-85 with about 2 to 3 gallons of 91 octane, due to the fact that my car experiences single digit temperatures on cold startups in the morning. I learned my lesson the hard way that the car will not start on its own with just pump E-85 in single digit temperatures. I went to start my car one morning and it died shortly after it fired up. Immediately cranked it a second time, died shortly after. Third crank, I put my foot on the pedal and left it at 1500 rpm for about 45 seconds, and then it was able to idle somewhat okay lol.</p><p></p><p>* EDIT * I should mention that I am on his performance variant. I have not tried the race variant due to the fact that I need TC for snow and ice.</p></blockquote><p></p>
[QUOTE="helloWorld, post: 15156676, member: 142369"] I currently use Shaun's flex fuel tune on my NA coyote. I can confirm that timing at WOT is maxed out (at least on my car) to 27 degrees on both gasoline and pure pump E-85 (E-70 in the winter time.) I have actually used the flex fuel portion and it works well. I started with gasoline only and when I filled up with pump E-85, the transition was smooth. The only thing I had to do when I did that drastic of a fuel change was drive it around for a bit so that the ECU could learn ethanol content. Other than that, it is a working flex fuel tune. Now, I run pump E-85 with about 2 to 3 gallons of 91 octane, due to the fact that my car experiences single digit temperatures on cold startups in the morning. I learned my lesson the hard way that the car will not start on its own with just pump E-85 in single digit temperatures. I went to start my car one morning and it died shortly after it fired up. Immediately cranked it a second time, died shortly after. Third crank, I put my foot on the pedal and left it at 1500 rpm for about 45 seconds, and then it was able to idle somewhat okay lol. * EDIT * I should mention that I am on his performance variant. I have not tried the race variant due to the fact that I need TC for snow and ice. [/QUOTE]
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2011-2014 Mustangs
Engine/Tuning
Flex fuel tunes available for Boosted Coyotes:
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