XRT Pro MPG Update - Dodge Cummins Diesel Forum
2010-2012 General Discussion General Chit Chat About the 6.7L 4th generation Cummins - NO ADVERTISING

 
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post #1 of 3 (permalink) Old 04-16-2011, 07:52 PM Thread Starter
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XRT Pro MPG Update

Mods in my sig with a curb weight of approx 9800lb empty 50% of the time and towing an additional 4K-8K lbs. behind it the other 50%. Driving mixed about 60% city and 40% highway. Each stage measured over a week, for me its about 1200 miles each.

All numbers hand calculated and filled at the same pump.

10.810-Bone stock, no mods.

11.413-Unplugged EGR and changed driving habits to less aggressive.

13.771-All mods in sig, XRT @ Mild tuning, no power setting.

14.956-All mods in sig, XRT @ Mild tuning, mild power setting.

I dont have a trans tune so I wont be going any higher on the XRT and dont plan to. The next mod will be a CAI then trying various additives. Ill get back when Im done with those. Hope this all helps.


2010 3500 ST 4X4, Auto, 3.73's, Bedliner, Ride Rites, Holmes 440 wrecker, Removed Intake Silencer, XRT Pro, DPF&Cats gone, H&S Egr/Cooler delete, GDP CCV Breather, 4" TBE to 5" stack straight piped.

Last edited by bigredram3500; 04-16-2011 at 07:53 PM. Reason: spelling
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post #2 of 3 (permalink) Old 04-16-2011, 10:49 PM
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Hi, could you explain the difference between mild tuning no power setting and the mild tuning with mild power setting? Are you referring to aggressive turbo? Thanks

2011 Laramie, CC, 4X4, Deep Cherry Red, Deleted, H&S XRT Pro w/OD, Mag-Hytec Rear Cover
2006 BMW M Roadster
2005 Jeep Liberty Limited CRD w/ Dr Performance Box, MAF disconnected, Straight Piped.
2005 Grand Caravan aka Gutless Wonder (wife's)
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post #3 of 3 (permalink) Old 04-17-2011, 12:08 AM Thread Starter
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Ill copy and paste a couple portions of previous posts, I hope this explains it well enough.

Originally posted by H&S:
"When you download ANY of the dodge tuning online, you are download a tuning GROUP. That tuning group includes all the No Power, MILD, WILD, and HOT power levels for your tuner. This tuning replaces ALL other tuning for your truck on the SD card. If you want the software that your unit came with from the H&S factory, click the latest software link, and don't go into custom downloads.

The MILD, WILD, and HOT DAMN headings on the custom downloads apply to ONLY the HOT power level of that particular tuning group. So lets say you have the WILD power level set on your truck from the MILD tuning group online with NO turbo tuning. That is the EXACT same tune as you will get on the Wild power level from the WILD tuning group with no turbo tuning. So, the NO power, MILD, and WILD are essentially identical in all custom download group levels with exception to the option of turbo tuning.

The TURBO TUNING heading in the custom downloads applies to ALL the tunes in the tuning family. So the NO power, MILD, WILD, and HOT settings will all get turbo tuning if you download a turbo tuning file." From Casey at H&S.

Also, heres another from Casey at H&S:

Originally Posted by hsperformance
Mild tune-No turbo tuning(avail. in custom sections or as the default download on website)
HP levels 0-40-80-120

Mild tune-Aggressive turbo tuning
Same EXACT tune as Mild tune but boost comes in faster. No HP difference

Hot Damn tune-No turbo tuning
HP levels 0-40-80-150
Fuel on the HOT setting comes in sooner.

Hot Damn tune-Aggressive turbo tuning
Same EXACT tune as Hot Damn tune but boost comes in faster. No HP difference

So to sum it up, the ONLY difference between the Mild tune and the Hot Damn tune is the HP level on the HOT shift-on-the-fly setting.

There is NO HP increase with any of the aggressive turbo tunes, the turbo just spools FASTER, and allows boost to 37psi instead of 30psi

Hopefully this helps??

Casey


-Sorry I threw a lot of info at you, I hope this helps. There's a lot more info on here. Id just have to find it.

2010 3500 ST 4X4, Auto, 3.73's, Bedliner, Ride Rites, Holmes 440 wrecker, Removed Intake Silencer, XRT Pro, DPF&Cats gone, H&S Egr/Cooler delete, GDP CCV Breather, 4" TBE to 5" stack straight piped.
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