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Difference between g56 and automatic engines?

2.8K views 18 replies 7 participants last post by  3pedals  
#1 ·
Is there any difference in engine/fuel hardware between the factory detuned g56 trucks and the automatics that are up a couple hundred LB ft of torque? Or is the difference all in the tuning?
 
#3 ·
Engines and everything are completely the same... Just the tuning...

But that dual mass clutch(stock one) doesn’t live too long at higher settings and even shorter if you’re towing ask me how I know... haha
 
#4 ·
Thanks guys...at 105k on my ‘16 cclb g56 and trying to decide whether to keep or sell. If I keep, definitely need more power (and a new clutch) but don’t want to compromise reliability and need to keep emissions intact (live in Cali). Am thinking something along the lines of a new clutch with automatic tuning to my manual truck if such a thing is possible
 
#5 ·
You’ll have to go with some aftermarket tuning to get the better numbers as far as HP/TRQ go, but there are a few companies that do intact tuning but I’d def get a dual disc of some sort with upgraded hydraulics...Pretty heavy on the left leg especially when stuck in traffic...
 
#6 ·
Keep it. I sold a g56 Cummins once... it was a bad move.
 
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#9 ·
Wow...ok fair enough. Thanks for the input! I haven’t modified anything until now, but since warranty is gone maybe need to look into keeping the truck and making it “better”. Am still skeptical about the longevity on these newer emission diesels, but the truck has been near flawless thus far. It is a unicorn as well...special ordered CCLB Laramie 4x4 g56 with rear air suspension.

I guess goals would be moderate power bump (maybe similar to automatic specs) without compromising reliability or emissions. Also thinking upgraded single-disc clutch to preserve drivability and hopefully retain a near-stock feel. Had a SBC double disc clutch in my old 12 valve and absolutely hated that thing, which ended up rattling the nv4500 to pieces.
 
#11 ·
I had the same truck in white except stock suspension and wheels. To each their own I guess. 40 horse tune puts you at what, 290 hp? Lol. Not sure how quick that would be. I couldn't wait to be rid of mine and back into a cummins manual.

OPs truck is definitely a rare bird. And you'll never get another one. I'd keep it until you are so tired of shifting you never wanna look at a manual, because otherwise if your like me you'll miss it every time you get in the new truck and see only 2 pedals. If you stick with a single disc and a tow tune you will end up around that stock aisin number I would guess if not a little more. I agree the stock manuals need a little extra grunt but I'm also very hesitant to go back to a dual disc. The power was awesome but noise and daily drivability were pretty poor
 
#12 ·
There are definitely days I miss having a g56 but the auto with 3.42's is damn nice for highway cruising for road trips.... And now the wife can take the truck if need be...
 
#13 ·
Doubt I’ll ever get tired of shifting...all
my cars/trucks are manual and despite trying with a couple previous vehicles, I just can’t seem to warm up to an automatic. It has actually become a problem when searching for something new due to the slow death of the manual trans. But as a result have been lucky enough to end up with a fleet of unicorns...ctsv wagon 6mt, grey market 635csi w/dogleg, 08 ram 1500 v8 6mt (with 370k miles...love this truck), and the ‘16 Cummins g56.

The only thing that scares me about the ‘16 is high repair costs, like $900 a piece injectors and $6k turbos, and of course the emissions junk which I’m sure is crazy expensive. If I can find a reputable & reliable emissions intact tune that won’t plug up my dpf, then this truck might be a keeper.

But back to the original subject...one would think that an emissions compliant tune that eases up on torque management and upgrades power to at least that of the automatic models should be easy to achieve? Upon searching I can only really find three general opinions on tunes...
1. Delete plus tune is great
2. Delete plus tune and have tons of problems
3. Emissions compliant tune is great but will plug dpf if you’ve got over a certain amount of miles (50k? I forget)

Can anyone point me in the direction of a proven emissions compliant tune that gives a power bump, dials back torque management, and won’t compromise factory reliability?
 
#14 ·
Doubt I’ll ever get tired of shifting...all
my cars/trucks are manual and despite trying with a couple previous vehicles, I just can’t seem to warm up to an automatic. It has actually become a problem when searching for something new due to the slow death of the manual trans. But as a result have been lucky enough to end up with a fleet of unicorns...ctsv wagon 6mt, grey market 635csi w/dogleg, 08 ram 1500 v8 6mt (with 370k miles...love this truck), and the ‘16 Cummins g56.

The only thing that scares me about the ‘16 is high repair costs, like $900 a piece injectors and $6k turbos, and of course the emissions junk which I’m sure is crazy expensive. If I can find a reputable & reliable emissions intact tune that won’t plug up my dpf, then this truck might be a keeper.

But back to the original subject...one would think that an emissions compliant tune that eases up on torque management and upgrades power to at least that of the automatic models should be easy to achieve? Upon searching I can only really find three general opinions on tunes...
1. Delete plus tune is great
2. Delete plus tune and have tons of problems
3. Emissions compliant tune is great but will plug dpf if you’ve got over a certain amount of miles (50k? I forget)

Can anyone point me in the direction of a proven emissions compliant tune that gives a power bump, dials back torque management, and won’t compromise factory reliability?
Check out calibrated power solutions. They have been doing emissions intact tuning longer than anyone. I have their tunes and I love em. Super helpful and always willing to answer any questions you have. Just call em and talk about your truck and what you are looking for and they'll be honest and take care of ya

Sent from my SM-G981U using Tapatalk
 
#17 ·
Well I would hope that a power bump to factory automatic levels shouldn’t compromise reliability over stock automatic trucks because they use the same hardware. Am also guessing that dialing back torque management would only have potential to effect reliability of driveline components. Pls correct me if I’m wrong...
 
#18 ·
Well I would hope that a power bump to factory automatic levels shouldn’t compromise reliability over stock automatic trucks because they use the same hardware.
They don't use the same hardware. There's no clutch or manual gearbox when using an automatic.
So the weaker clutch and trans get down rated engines accordingly.
 
#19 ·
Should have been more specific...they use the same engine/fueling hardware. The clutch is a known weak point that will need to be upgraded as I mentioned above. Trans should have no problems with a moderate power bump from everything I’ve read/heard. Rear end and tires might be a different story, but that has more to do with my driving style.