Duramax Diesels Forum Truck of the Week
  #1  
Old 11-20-2017, 05:33 PM
Littletank8 Littletank8 is offline
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Default Ppei vs GDP tuning for lml

New to the forum, just picked up my first duramax last weekend. A 2016 ccsb ltz with 38k miles, once the warranty is up I plan on deleting. Googled the topic but couldn't seem to find anything. Anyways looking at getting the ezlynk setup and noticed the two most popular tuners are GDP and ppei. Was wondering if any of you guys have ran both of their tunes and what are some of the pros and cons of each tuner. Also what are some of the mpgs you guys are seeing with their tunes. I can already hear some of you guys' saying "why'd you buy a truck if your worried about mpg" but don't really need to hear that. If there aren't really any cons to GDP or ppei and it's really a toss up with who I should go with then mpg could be a deciding factor. Thanks guys!


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Old 11-20-2017, 05:34 PM
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They both suck.
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  #3  
Old 11-20-2017, 05:42 PM
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Quote:
Originally Posted by Ne-max View Post
They both suck.
x2
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And a few other retired Duramax's
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Old 11-20-2017, 06:00 PM
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GDP?

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  #5  
Old 11-20-2017, 06:55 PM
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Quote:
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GDP?
Thats what I was thinking. Maybe Glacier?
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Old 11-20-2017, 06:57 PM
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Gorilla Diesel Performance
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Old 11-20-2017, 07:11 PM
Littletank8 Littletank8 is offline
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Quote:
Originally Posted by Dozerboy View Post
GDP?

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What ne-max said, gorilla diesel performance


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  #8  
Old 11-20-2017, 07:11 PM
Littletank8 Littletank8 is offline
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Quote:
Originally Posted by Ne-max View Post
They both suck.


Lmao well then what do you think the best option is?


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  #9  
Old 11-20-2017, 07:20 PM
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Aaron at all in trucks
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EFIlive dsp5 by me, Built trans by me, 68 danville, stock fuel, lifted. died 6/20/2013 Cracked piston. Best time 12.75 on fuel

Alive 11/15/13: lowered, Built motor, s475, plenty of fuel, plenty of spray. Tune 3 fuel only 11.84 @114, Tune 5 little bit of spray 11.45 @ 121. Both times with melted turbine wheel, loose turbo from pedestal with blown out flange gasket. .
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Old 11-20-2017, 07:24 PM
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I'm very happy with my MotorOps delete tuning on my LML. Have been running for almost 40k miles. Gets 21-22 mpg on the highway with the sport economy tune.
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2005 CHEVY 2500HD RCLB 2WD Duramax/Allison

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Special thanks to:
- Danville performance, Mark.
- Suncoast transmission's, Andrew.
- Wehrli custom fab, Jason.
- Profab, Rick
- Turbo performance, Levi.
- HSP, Joe and Dave.
- SoCal diesel.
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Old 11-20-2017, 07:26 PM
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Check the vendors section on this forum there are some reputable ones in there.
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11 CCSB 4x4
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Old 11-20-2017, 07:29 PM
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Quote:
Originally Posted by duramaxzak View Post
I'm very happy with my MotorOps delete tuning on my LML. Have been running for almost 40k miles. Gets 21-22 mpg on the highway with the sport economy tune.
That's some damn good mileage I've never seen over 18 on the highway. What are your cruising speeds?
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11 CCSB 4x4
Full delete, EFI by Ridgerunner, 5" FloPro, Profab manifolds and up pipes, Wehrli cp3 conversion, 3" downpipe, S&B intake, AD165 4G, DHD tie rod sleeves, 2" rear drop shackles, Rancho RS9000XL
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Old 11-20-2017, 08:12 PM
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Quote:
Originally Posted by AZlml View Post
That's some damn good mileage I've never seen over 18 on the highway. What are your cruising speeds?
65-75mph, only other mods are S&B intake and 4" Flopro exhaust with muffler.

That is hand calculated also...
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2011 CHEVY 2500HD CCSB Duramax/Allison LTZ

2005 CHEVY 2500HD RCLB 2WD Duramax/Allison

2002 GMC 2500HD RCLB Duramax/allison 2.6 puller
Special thanks to:
- Danville performance, Mark.
- Suncoast transmission's, Andrew.
- Wehrli custom fab, Jason.
- Profab, Rick
- Turbo performance, Levi.
- HSP, Joe and Dave.
- SoCal diesel.
- Wagler competition, Jeramy.
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  #14  
Old 11-21-2017, 04:10 AM
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Who else is worth taking a look at for lml Tuning?
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Danville performance tunes.
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  #15  
Old 11-21-2017, 06:08 AM
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Quote:
Originally Posted by Yngdmax92 View Post
Who else is worth taking a look at for lml Tuning?


Itís been said already. Those are the main guys. I personally use Aaron for all lmlís I work on. Never had a issue.
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EFIlive dsp5 by me, Built trans by me, 68 danville, stock fuel, lifted. died 6/20/2013 Cracked piston. Best time 12.75 on fuel

Alive 11/15/13: lowered, Built motor, s475, plenty of fuel, plenty of spray. Tune 3 fuel only 11.84 @114, Tune 5 little bit of spray 11.45 @ 121. Both times with melted turbine wheel, loose turbo from pedestal with blown out flange gasket. .
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