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When is a tune necessary?

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Old 03-18-2018, 10:10 PM
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When is a tune necessary?

I have an 06 f250 with the 5.4 v8. I have a k and n cold air intake and gibson cat back exhaust. I have the typical passenger side manifold leak and will be replacing them with short tube headers. At what point would a tune be needed? I assume the headers and current mods are fine. until I mess with timing, cams or fuel I should be ok without a tune, correct? Any help is appreciated!
 
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Old 03-19-2018, 03:25 AM
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I put a 5 Star tune in my 2006 F 350 5.4l after I got a 2011 F350 6.2l - such a huge difference between the two engines that it felt like I was driving a wind up toy when I was in the 2006 (which is primarily just a plow truck).

The tuner was a big improvement - the engine is much “peppier” and more responsive at the throttle. I don’t have any other mods on the truck.

 
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Old 03-19-2018, 05:02 AM
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necessary = Never,,,,

wanted might be..maybe..
 
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Old 03-19-2018, 09:23 AM
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After gears. You can strap all the parts to the motor you want, but if you have 3.73s you'll still get roasted by anyone with 4.30s.
 
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Old 03-19-2018, 10:17 AM
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I have too been pondering a tuner on my 06 5.4 (I have 4.10's) everything is stock. I tow with the truck, about 9000# and would like a little more pep. Since it is a 6 speed obviously won't benefit from shift changes but wondering if the power gains itself is worth it? I know it would be a bit costly with having to use premium (I remember the days when premium was only .20 more than regular)

Also since I tow I am at WOT often, how detrimental in the long run would a tune be? How receptive is the 5.4 on a tune?
 
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Old 03-19-2018, 12:25 PM
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Tuned up my 2000 SD V10 3 times.

it didnt need it all 3 times.

I’m never doing it again........
 
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Old 03-21-2018, 03:22 AM
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Originally Posted by seville009
I put a 5 Star tune in my 2006 F 350 5.4l after I got a 2011 F350 6.2l - such a huge difference between the two engines that it felt like I was driving a wind up toy when I was in the 2006 (which is primarily just a plow truck).

The tuner was a big improvement - the engine is much “peppier” and more responsive at the throttle. I don’t have any other mods on the truck.

I heard good things about them and figured it was worth looking into thank you
 
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Old 03-21-2018, 03:25 AM
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Originally Posted by texastech_diesel
After gears. You can strap all the parts to the motor you want, but if you have 3.73s you'll still get roasted by anyone with 4.30s.
I got the 3.73 limited slip. after I replace my manifold and can finally get my inspection sticker (expired 8/31/2017) I wanna get Detroit lockers and 4.30 gears
 
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Old 03-22-2018, 10:40 PM
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On the 5.4 your not gaining ANY performance in the motor. What u are getting is changes in the delay for throttle input and slight changes in transmission settings (delays and shift points). The changes for the delays is what makes you think the motor is making more power but its not, its all the setting fixes. On a 5.4 its all about GEARS GEARS GEARS
 
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