ls1CANTU

iTrader: (9)

Has any body tried to go with a 2019 TCM on these 2020 10 speeds to be able to tune them or any solution to this?

kinglt-1

iTrader: (26)

Nope it doesn't work. If you have a 2020+ then you are limited to the stock trans tuning. However there are some things you can do on the ECU side to improve shifting. Addressing the minimum spark table will keep the ECU from pulling excessive amounts of timing on the shifts.

JROC

So after 1 year of the 10 speed GM F's you on tuning it? Kind of like how the 16-18's are better/easier/cheaper for upgrading the sound system. Remember like 15 years ago with the introduction of the S197 when it was new Fords that were a bitch to break into their computers and get a good tune put on them?

I hear you can't even tune a C8 as of right now.

kinglt-1

iTrader: (26)

Technically speaking the 2017-2019 A10's are all able to be tuned. 2017-2019 on the ZL1 10l90 and 2019 only on the 10l80. GM switched the controller from the T87a to the T93 on both models(They use the same controller) and it's locked up pretty good. Good enough that Hptuners said they will likely never support it. And for whatever reason you can not revert a T93 equipped car back to a T87. Not sure if it has something to do with the can bus system and the new stuff being on a global b architecture or what...that is above my pay grade.

JROC

I tell you what GM sure has done a good job lately of coming up with ways to give people good reasons not to want to buy their products, but to shop elsewhere.

kinglt-1

iTrader: (26)

Agreed 100%