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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Lund Flex Fuel Tune on 11-14
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<blockquote data-quote="7Lemons" data-source="post: 15571962" data-attributes="member: 184681"><p>Okay I have the flex tune in, and have converted to E85 with 47# injectors. After filling up with E85 I could watch after about 10 minutes (if that) the AFR @ WOT was adjusted to E85 stoich...really neat how it learns what fuel you're running!</p><p></p><p>One problem with evaluating it is I changed to the Boss IM at the same time because the fuel rails were off and it was a good time to change injectors. I wish I hadn't changed more than one thing at a time because it's hard to evaluate the flex tune by itself...but I didn't have the time to do a slow methodical approach. All I have to evaluate is the butt dyno and I can say, after driving for a bit with the Boss IM and 93, then switching to E85, it seems like I got some mid range torque back that I lost with the Boss. As others have said, with E85 it's really smooth all the way to 7600rpm and the Boss pulls all the way there with no sign of falling on its face at all - like the stock manifold did at about 6500rpm.</p></blockquote><p></p>
[QUOTE="7Lemons, post: 15571962, member: 184681"] Okay I have the flex tune in, and have converted to E85 with 47# injectors. After filling up with E85 I could watch after about 10 minutes (if that) the AFR @ WOT was adjusted to E85 stoich...really neat how it learns what fuel you're running! One problem with evaluating it is I changed to the Boss IM at the same time because the fuel rails were off and it was a good time to change injectors. I wish I hadn't changed more than one thing at a time because it's hard to evaluate the flex tune by itself...but I didn't have the time to do a slow methodical approach. All I have to evaluate is the butt dyno and I can say, after driving for a bit with the Boss IM and 93, then switching to E85, it seems like I got some mid range torque back that I lost with the Boss. As others have said, with E85 it's really smooth all the way to 7600rpm and the Boss pulls all the way there with no sign of falling on its face at all - like the stock manifold did at about 6500rpm. [/QUOTE]
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Lund Flex Fuel Tune on 11-14
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