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Old 07-31-2009, 01:13 PM
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Edge transmission defueling questions

The edge juice plat with att. was on the truck when i bought it. Along with a 4" mbrp.. I recently did an egr delete and the truck has really come to life.
I would like to know what you guys have your transmission shift defueling set at? I have mine set at 100% And the truck pulls hard except when it shifts. Now i understand, that at this setting it is really saving the life of my transmission by not shifting gears at full power. But i must say it is a little annoying to feel the truck almost fall on its face before it shifts then bam the power is back.
I have played with the defueling, as in dropping it down to 50% and 20% just to see what she feels like in the shifts. And it really feels like it should, real smooth shifts and no loss of power. I dont want to screw my tranny with this tuner and i plan on purchasing an sct. But in the mean time, i'd like to know what are you guys experiencing with this defueling setting and how has your transmission stood up to the power increases of the edge? Overall i like this tuner's features with all the monitoring and settings, just want to know more!

thanx nate
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Old 07-31-2009, 01:27 PM
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Unfortunately, to my knowledge the Edge is one of the more notorious as far as eating torqshift trannies. The primary reason is that they do not tune the tranny for the power. You have an in-line fuel module that allows for shift on the fly, shift on the fly is mutually exclusive to tuning the vehicle as in order for a tune to be accepted and to work fully the computer has to reboot. Think of it like a PC or Mac having to be rebooted after you install a program for that program to fully work. Same thing here. Shift on the fly has it's appeal, although over time that appeal wanes, but how that shift on the fly is achieved is not good for the 6.0s and the torqshift.

That alone, in my opinion, means that defueling either based on EGTs or by TFT is a gimmic and it really doesn't do you much good at all because it does not truly address the failings of how that power is achieved.
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Old 07-31-2009, 01:37 PM
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I completely understand and agree with you. And this is why i will be purchasing an sct to completely retune (or reboot as you say, which was an awesome analagy) the truck for better performance.
Now as far as the gimmic with the shifting defueling, do you think this hurts the tranny as well? I tend to think this will prolong the life of the tranny, strickly because it isn't shifting gears at higher horsepower than the tranny is ready to handle.
And believe me i completely agree that the right way to tune these trucks is to add power and increase line pressures in the tranny to handle that power. Which cannot be done by the edge...
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Old 07-31-2009, 05:27 PM
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I don't think it would hurt anything. I just don't think that it truly works to it's potential with how the edge makes its power.
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