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  #1  
Old 03-02-2014, 09:22 AM
Dave101 Dave101 is offline
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Default Lifted my truck and now,some questions

Hi folks,

I have a 2012 Dodge 1500 with the 4.7 8.

I just lifted the truck with a Rough Country 6 inch lift and Nitto Terra Grapplers - 33s - 18s. I have a 5th tire in the bed on longer trips as a spare.

Prelift I was averaging about 17.5 overall and now I am apparently getting 14 overall. I do a lot of driving but it was worth the hit.

I am installing a K & N CAI on Wednesday.

Now some quick questions.

I have a bully tuner.

I simply plug it in after updating and run a tune?

Any recommendations on the tune I should use to optimize power and mileage?

TPMS sensors were installed on the tires. It indicates that the pressure is low. Anything I can do to correct this?

Should I change the differential gearing?

Any other thoughts on creeping the mileage back up?

I am not too concerned about the speedometer being recallibrated as the difference between the GPS speed and the speedometer is at most 1.5 mpg.

Thoughts and suggestions for the listed questions please.

Thanks in advance.
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  #2  
Old 03-02-2014, 11:28 AM
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With the tuner, yes after updating you plug it into your truck and you will download the tune you desire. I am hoping another member with the bullydog and a 4.7L can chime in today.
What gear ratio do you have?
How long have you had the tires on for and what is the recommended pressure/ what pressure are you running? If the tires are brand new, it may take the computer a day to recognize them.
With the bullydog tuner, I beleive you can recalibrate the speedo to work with the bigger tires.
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Old 03-02-2014, 12:54 PM
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For the Bully Dog tuner, yes simply update it online, plug it into the truck, and install the tune. I had the 87 octane tune installed on my 4.7 with 35's and I was averaging around 15.5 mpg. With 33's you should definitely do a little better than that but it also greatly depends on your driving style. Your right foot is going to have the greatest effect on your mileage. But I would recommend running the 87 tune at first and see how you like it. If you feel like you need more after that then try out the 91 tune. It's easy enough to change. But overall I'd say you'll benefit more from the 87 tune since the cost of it is cheaper than 91.

The Bully Dog also has the option to change the pressure that your truck will warm you at for the TPMS system or turn it off completely. So that will fix that issue.

Changing the gearing if you're only running 33's really isn't worth it at all. It's not an easy task to change gears in a 2012 4wd and isn't cheap either. So I'd take that off your list.

I would also play around with the speedo calibration to get yours dead on. The more accurate it is the more accurate your mileage calculations will be.
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  #4  
Old 03-02-2014, 08:34 PM
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^ There is the person with the answers for your questions.
Also if switching octane tune levels. Please make sure there is no 87 octane fuel left when you change to 91.
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  #5  
Old 03-02-2014, 08:54 PM
Dave101 Dave101 is offline
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Thanks for the input guys.

Any input on how exactly the speedometer calibration is done as I have not tried it yet.

D...
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  #6  
Old 03-03-2014, 02:44 AM
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Quote:
Originally Posted by Dave101 View Post
Thanks for the input guys.

Any input on how exactly the speedometer calibration is done as I have not tried it yet.

D...
With my trinity I just go to the modify parameters section and go to tire size and change the size of the tires to my current tire size (35/12.50/17) or just tire height and it matches it. Should be something similar.
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  #7  
Old 03-05-2014, 11:20 PM
Dave101 Dave101 is offline
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Thanks!!!
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  #8  
Old 03-05-2014, 11:25 PM
Dave101 Dave101 is offline
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Brandon,

How hard is installing a Magna Flow Exhaust System for a novice with minimal technical expertise? Lol.

With the 6 inch lift is it doable with jacking up the truck?

Thanks.

D...
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  #9  
Old 03-06-2014, 02:17 PM
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To actually remove the old exhaust and install the new exhaust is not difficult at all. On my 1500 it took me about 3 minutes to remove the stock exhaust. Just undo the clamps and pull it off. Putting on the new one takes a bit more care and finesse but it's very simple to get it on there and all clamped up. However once you have it on the truck I would recommend at least having the joints tack welded to prevent them from moving around.

And yes with a 6" lift you shouldn't have to jack up the truck at all. Lots of room underneath there
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8" BDS Long Arm Lift with Fox 2.0 Shocks | Dual Fox 2.0 Steering Stabilizer | 37x13.5 Toyo MT's | AMP Powersteps & Bedstep | Bakflip G2 | Mag-Hytec Rear Diff Cover | 5000K Morimoto HID's (lows and fogs)
H&S MiniMaxx Custom Tuned | 4" Flo Pro Stainless TBE | Sinister EGR Delete | ARP 425 Head Studs | 4.56 AAM/Yukon Gears | S&B Intake | Instagram: @brandonjansen
Guide to Leveling & Wheel and Tire Sizing for 06+ 4wd Ram 1500's
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