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2014+ Engine & Transmission Tuning

pendragon

By pendragon
in Engines & Drivetrain

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bboyce536 Enthusiast

bboyce536

Posted
Posted

What's the consensus on tuning a leased vehicle? They won't look into that upon lease return will they? I cannot stand the drive ability of this truck currently. Really just wish I could return the lease now.

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CorvetteOJ
CorvetteOJ

I have received numerous PMs asking about my tune, so many in different threads, I don't believe I could find them all, so I thought I would just initiate a seperate thread to address it. This may be

tim s
tim s

I just had Black Bear tune done and wow my truck at full throttle shifts into 4th at 100 mph. Transmission shifts so much better. Throttle response is fantastic. Best tune I have ever had done.

iCryWheniGoPoop
iCryWheniGoPoop

Ok, there seems to be a little confusion and a lot of misinformation passed around the internet that WILL eventually bite one of us in the butt when they go in for a warranty after they get their truc

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Greensmob Enthusiast

Greensmob

Posted
Posted

What's the consensus on tuning a leased vehicle? They won't look into that upon lease return will they? I cannot stand the drive ability of this truck currently. Really just wish I could return the lease now.

I have tuned, modded, cut, and welded every lease vehicle I have ever had which is many. My last lease was a twin turbo, fully built trans Dmax, luckily I had a buddy buy it out at the end so I did not have to return it to stock to take it back.

fondupot Senior Enthusiast

fondupot

Posted
Posted

What's the consensus on tuning a leased vehicle? They won't look into that upon lease return will they? I cannot stand the drive ability of this truck currently. Really just wish I could return the lease now.

 

My last car was a lease. I lowered it and did some easy mods. but upon trade in the dealer bought me out of my lease. So I didnt have to worry about taking my mods off.

 

My truck is also a lease, Ive tuned and installed catback exhaust. I kept the stock exhaust all in one piece tho, so I can go back to stock in a matter of minutes for the tune and about an hour or two of time to put the stock exhaust back on.

sugarjohnson Enthusiast

sugarjohnson

Posted
Posted

Just looking for some piece of mind. I currently have a Diablosport Intune on my 14 6.2L max tow 3.73. I received a new TCM calibration since mine wasn't supported yet. I am running the diablo tune with DOD off. The only other setting I changed is trans shift to firm. I have to say for a canned tuner the truck runs very well now. I did notice the firm shift tune causes the truck to stay in gear longer and it does not race to get to the lowest gear possible like stock. I was impressed as it works well this way for towing my TT. More power when you need it.

 

Only thing I get nervous about is you can hear some of the downshifts now. To be clear I just hear positive clicks, not clunks and you can't feel it. I have always been told it's better to have a firmer shift then a soft for tranny longevity. Am I just paranoid about hearing it engage?

 

Feedback welcome.....

  • 3 weeks later...
TXS Heat Enthusiast

TXS Heat

Posted
Posted

question of the day -

dealership is modding my tune to account for the 33's i am running. This should show up on the counter but does it show up specifcally for adjustment to the tires on the counter/tracker?

TJay74 Senior Enthusiast

TJay74

Posted
Posted

no one knows for sure what GM can see, I am thinking if they read the entire ECM/TCM and they compare it to the stock calibration they will see every change we make.

KARNUT Senior Enthusiast

KARNUT

Posted
Posted

Some one needs to come up with a way to fry the computer, engine troubles fry the computer. Not something I would do of course.

CAtaylor Enthusiast

CAtaylor

Posted
Posted

Some one needs to come up with a way to fry the computer, engine troubles fry the computer. Not something I would do of course.

I can ask my dad, he did my sisters toyota installing a security system, ha! Only takes ohming out the wrong 2 wires and she is dead. These things are finicky now.

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  • 3 weeks later...
Isriam Enthusiast

Isriam

Posted
Posted

they aren't going to see the actual tuning parameters, they will only see that it was flashed. thats the issue with "gm can't see the tune" being said in this threads. its not totally true for what people think at first.

 

also, this applies to cell phones and flashing custom roms. usually though no one cares and will allow warranty work.

  • 5 weeks later...
scott19677 Senior Enthusiast

scott19677

Posted
Posted

no one knows for sure what GM can see, I am thinking if they read the entire ECM/TCM and they compare it to the stock calibration they will see every change we make.

Hey, remember GM stands for Govt. Motors now. THEY SEE EVERYTHING... Just kidding, I would really like to know myself. I really want to get a tune but Im just a little skittish since Ive had so many problems. I just want to turn off V4 and tune out some TQ management. Nothing major.

BBRU Enthusiast

BBRU

Posted
Posted

Hey, remember GM stands for Govt. Motors now. THEY SEE EVERYTHING... Just kidding, I would really like to know myself. I really want to get a tune but Im just a little skittish since Ive had so many problems. I just want to turn off V4 and tune out some TQ management. Nothing major.

Me too, and take the speed limiter out as well.

pkpouttu Enthusiast

pkpouttu

Posted
Posted

I bit the bullet and bought a hypertech max energy ,totally diff feel to truck now .better on fuel to

 

What settings do you have yours on?

12amrdr Enthusiast

12amrdr

Posted
Posted

On our 14 Sierra, the biggest gains were inthe throttle response. I felt the factory throttle cal was about the worst offered by GM ever, and after some fine tuning, we were able to make the throttle much more lively, and we offer the end user further adjustment to make the throttle response work to your liking :)

 

Theres also a solid 20 rwhp/20-25 ft-lbs in the tunes...

 

Our tunes can't be seen by the dealer either ;)

i know this is old but its sad to me you lie to the members here to sell your garbage can tunes. Any changes made to the ecm calibration can be seen on these trucks. the dealer can see anytime the computer is flashed.

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