SCT Extreme ??? - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 3 Old 01-29-2011, 07:37 PM Thread Starter
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SCT Extreme ???

After a year of running the tow tune w/ stock shift settings, I finally decided to fiddle around a bit and to tell the truth the extreme level is the best for power just the shifting is no good. I have tried every combination and I have found the stock shifting shifts much better and more firm than the "firm" setting. Could they be programmed backwards, and when you choose firm you are actually getting stock shifting? Anyone with this same diagnosis I would like to hear...
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post #2 of 3 Old 01-30-2011, 06:47 AM
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I have the same issue with my 2010 F350 on extreme tune. It is nowhere close to a firm shift.
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post #3 of 3 Old 01-30-2011, 07:41 AM Thread Starter
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I tried the extreme witht the stock shifting and it did much better until you put your foot into it. Right now I currently have mine on Performance tune w/ stock shifting and it actually stays in gear and shifts pretty good. No where near the power though. Oh well, since no one ever seems to be able to shed any light on these SCT tranny issues I guess my tuner now only contains 2 tunes because I can't use the extreme. Oh well at least no regens, Right?
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