2014 Silverado How to Tune the Transmission?

[wmgeorge64]

Ok my 2014 will be out of Warranty in a few days and looking to make the 6 speed transmission just that. No adaptive learning and etc, just shift when I want it too.  Suggestions or Links to Threads would be great. Not wanting to race, or spend a whole lot of money. Just want it to be like the 2006 I had, just work.

 

Thanks in advance.

[KARNUT]

Ok my 2014 will be out of Warranty in a few days and looking to make the 6 speed transmission just that. No adaptive learning and etc, just shift when I want it too.  Suggestions or Links to Threads would be great. Not wanting to race, or spend a whole lot of money. Just want it to be like the 2006 I had, just work.
 
Thanks in advance.

I’ve tried all the hand held tunes over the years. On my 14 I used hypertec. It lets you adjust the shift points and firmness as well as other adjustments. I’ve never been disappointed with handheld tunes.


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[Ozer]

I have a hand held tuner that allows me to adjust shift points and RPM for each gear but i never played with it.

Does anyone have proven shift points/RPMs to use?

[KARNUT]

I have a hand held tuner that allows me to adjust shift points and RPM for each gear but i never played with it.
Does anyone have proven shift points/RPMs to use?

I rarely kept my trucks past 120K miles. Keeping that in mind, 6K on the Rpms just under on shift points. 50 percent on the TM. I didn’t do the premium tune on the engine because it was E-85 compatible. Turned off the cylinder deactivation. 130 on maximum speed. All my GMs pulled hard all the way. If they fell off I’d back off on the shift points. My 04 Z71 I kept till 180K no ill effects.


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[Centex14]

Diablo here. Works fine.


2014 z71 LTZ
Volant Intake
Borla Exhaust
Diablo
Bilstein 5100
Rough Country Level

[TJay74]

Not going to be possible OP, no matter what you do or use as far as tuning platform. There is no way to remove or stop the adaptive shifting system in the TCM. With that, any capable tuner that uses HP Tuners or EFiLive can go in and tune the transmission for better performance and shifting. 

[Darth_Vader]

I don't know what's possible on the handhelds but you want to dial your shift time back a little bit, maybe 20%, bump your pressures up until they feel nice and firm, these are the big two, make small adjustments and test, you can also adjust your shift speeds and rpms to get it to hold gears longer. Don't forget to do a trans learn reset after any change. There are a ton more features if you go with hptuners or efilive I could delve into. Don't adjust your torque management on these platforms, the whole system is torque based now, messing with TM on the trans now days will hurt more than help. There are guys doing second gear launches on slicks with 600+ hp cars that are cutting amazing 60 foot times with all the torque management still enabled.

[KARNUT]

Up until my last truck 2014 on all the hand held turners I used reducing TM increase shift times. You could adjust shift points too. Depending on where you’re torque is made, increasing your line pressure and leaving TM the same, same difference, no? After all isn’t the goal of raising shift points to keep your vehicle in the maximum torque range?


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[silveradosid]

on ebay factory refurbished and full warranty Superchips FlashPaq F5 2845 99-18 GM Gas Diesel Sierra Silverado 1500 2500 3500 it will do what you want

[Bill Reinhardt]

On 10/30/2018 at 10:48 AM, KARNUT said:

I’ve tried all the hand held tunes over the years. On my 14 I used hypertec. It lets you adjust the shift points and firmness as well as other adjustments. I’ve never been disappointed with handheld tunes.

 

Does the Hypertech tuner allow you to bump up the shift points by speed? How does the shift point adjustment work in light throttle conditions?

 

A standard Diablo tuner does not allow you to modify shift points at partial throttle, only at WOT (which is unfortunate).

[Darth_Vader]

On 11/17/2018 at 7:09 AM, KARNUT said:

Up until my last truck 2014 on all the hand held turners I used reducing TM increase shift times. You could adjust shift points too. Depending on where you’re torque is made, increasing your line pressure and leaving TM the same, same difference, no? After all isn’t the goal of raising shift points to keep your vehicle in the maximum torque range?


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Up until then TM made a huge difference, my 2008 Corvette was able to cut almost .7 tenths off the 1/4 mile with adjustments to torque management alone.  But the Gen-V motors use torque maps for power demand, so you have your standard fuel and spark maps but in order for the engine to actually make power you have torque calculations that allow everything to work and there are multiple torque inputs that can be in charge of power deliver from engine to transmission to even calculated axle torque, based on everything that is going on that is what will determine the max amount of power you can make and if you start messing with torque management you can actually change what is in control of the current demand torque, in this case your transmission can actually cause the ECU to make the engine develop less power.

 

Using shift times and pressures alone you can make these transmission shift so hard that it makes the trucks unpleasant to drive.  Not to mention there are plenty of people with full TM still enabled on the 6L80 that are running in the 10's right now so there just isn't any real benefit to adjust it anymore.

[Bill Reinhardt]

On 11/17/2018 at 4:38 AM, Harlech said:

Don't forget to do a trans learn reset after any change.

 

How is this done?

[Darth_Vader]

25 minutes ago, Bill Reinhardt said:

 

How is this done?

Can only speak to how to do it in HP tuners, Bill. You do it though the scanner, connect up and then on the tool bar to top there is a green button that brings up a window with a bunch of testing options, there is a transmission tab and under it on the right side it should be your top button or if like 5 options. Anytime you make any changes to shift points or pressures your should do a reset. Any tuner should have this option, just have to find out where it is. Pretty standard practice.