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Old May 3, 2014 | 07:40 PM
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Tuner help
I have 06 f250SD 5.4. Runnin 37s. Any one know how to tune it? I have the sct 3015. Kinda afraid of really messin with it so was lookin for some kinda help or advice
 
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Old May 4, 2014 | 12:44 AM
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From: Lubbock
Plug the tuner into the obd2 port. Scroll to install tune. Click yes. Pick the tune you want to run. Then install the tune. It will walk you through it
 
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Old May 4, 2014 | 11:40 AM
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tuning will not help if your looking for a power increase, gears would be the only way. Make sure you re-calibrate the speedo for the larger tires as well.
 
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Old May 4, 2014 | 12:06 PM
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37s + 5.4L = 4.56s at least probably. Good excuse up upgrade the diffs for all the offroading you do.
 
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Old May 4, 2014 | 12:33 PM
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From: Lubbock
Just so your aware the sct you have will not calibrate the speedo. You will need a seprate device to do that. Either a auto enginuity. Some of the edge products will and there are also some spedo calibraters like the truspeed.
 
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Old May 4, 2014 | 12:35 PM
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Originally Posted by Lubbockguy1979
Just so your aware the sct you have will not calibrate the speedo.
Is there a difference in the 3015 between gas and diesel? Mine will do revs per mile on the tires.
 
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Old May 4, 2014 | 12:56 PM
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Originally Posted by Lubbockguy1979
Just so your aware the sct you have will not calibrate the speedo. You will need a seprate device to do that. Either a auto enginuity. Some of the edge products will and there are also some spedo calibraters like the truspeed.
That's not true. All xcal3s can adjust gear ratio and revolutions per mile adjusting your speedo. They can also change shift points. That's all that I'm aware that is universal between gas and diesel.
 
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Old May 4, 2014 | 02:36 PM
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From: Lubbock
Originally Posted by 02TB250

That's not true. All xcal3s can adjust gear ratio and revolutions per mile adjusting your speedo. They can also change shift points. That's all that I'm aware that is universal between gas and diesel.
Ill put it this way. I have one. I can set the rev/mile. Which effects trans tuning but does nothing for the spedo. The trans does not read speed for the speedo. The speedo gets its info from the abs module. I use a edge evolution to set the speedo. The ford dealership I went to was suppost to recalibrate the speedo but since my tire size and gear ratio was not a factory option the closest they could get was 5mph off @70. I was 8mph off @ 70 before that. With the edge I am able to get the spedo dead on with either of my gps' s
 
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Old May 4, 2014 | 05:31 PM
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Originally Posted by Lubbockguy1979
Plug the tuner into the obd2 port. Scroll to install tune. Click yes. Pick the tune you want to run. Then install the tune. It will walk you through it
It don't have any tunes in it. Gotta do it all yourself. So I wasn sure really what to do. As in changin spark, advancing timing ect. An it does fix the speedometer. I've got it within 3mph
 
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