[JSH]

Originally Posted by clg82

So the actual ECM needs to be tuned for the tuning to be accomplished on the TCM?

Yea, you tune them concurrently

[clg82]

Originally Posted by JSH

Yea, you tune them concurrently

So for smog purposes, I'd have to flash the ECM back to the Magnuson tune...(hoping that they get CARB approved that is)....would that affect how the car runs and drives when it comes time for me to smog it?

[JSH]

Originally Posted by clg82

So for smog purposes, I'd have to flash the ECM back to the Magnuson tune...(hoping that they get CARB approved that is)....would that affect how the car runs and drives when it comes time for me to smog it?

Yes, you'll have to change both the TCM and ECM stock tunes. If you have an ECM aftermarket tune on the car now, you'll have to edit that when you tune the TCM.

California emissions law affecting our cars has been discussed here extensively, but it's not relevant to me. Looking at your mods I don't see any reason a good tuner couldn't pass emissions.

Perhaps some CA guys can jump in here.

[lt4camaro]

Originally Posted by radz28

I'll see if I can articulate:

I'm a bit old-school I think. Even though I missed the muscle car era by maybe 10-years. I've appreciated the era since before I was ten. I've read many a Hot Rod, Car Craft, etc. I even have an original ZL1 engine article I love reading. Anyways...

1. Firmer/quicker shifts
2. Elimination of as much TMA as you like
3. Optimize to my preferences
4. Raise shift points
5. Differentiate Drive Modes a little more
6. Second gear start
7. Optimizing roll racing-shifting (TUTD settings)
8. Torque reduction by gear (enhancing traction control some, perhaps)

For more comments if you're interested

I like the transmission to shift harder as I drive harder. While stock, it does this to an extent, I'm the kind of person who probably wouldn't mind it barking the tires on a WOT-shift. I recognize that's not desirable around a course, but I'm more strip than track, so I lean my tuning a little that way. I might swing more neutral later, but that's one of the traits of this swap that I can have more influence over. I want crisp/quick shifts - but I don't want them all the time. I'm starting to see how to make the "improvements" I like, and it's fun.

The biggest benefit for me was getting TMA reduced. I still have it in there, but I've cut it back on shifts. I spent a-year-and-a-half banging my head against what I eventually thought was TMA kicking in, and I'm pretty sure I've confirmed that. That was HUGE to me. I was "raping" my VTT so I wouldn't get any spark retard on the 2-3-shift, and now it's all gone with good torque values in the VTT-tables. I'm VVE-tune, too, so that plays a role. I wouldn't claim they're perfect, but I can say the car drives like it should now, rather than the canned tune I had to start with. That had all the torque limiters in it, and it was REALLY holding the car back.

Raising shift points is great. The OEM-file shows the transmission isn't programmed to shift at redline each gear. Access to this feature gives options to do that now. I've also extended each shift a couple hundred RPMs, too. Extending the power a little more is nice.

2nd-Gear start could be nice after a certain point. I don't think I need it now, power-wise, but perhaps after a certain level, that super-short first gear will hamper times more than benefit, and starting in 2nd will yield a faster time and less tire spin.

I still have lots to play with and much more to learn. I'm taking baby steps. I'm delving into torque converter customization and that one will probably take the most, because I've done that the least in my tuning. I've played on an '05 H2 that I swapped a 408/LS3-hybid into, and I played with the 4L65 in that a bit. I've played with my '16 Turbo Sonic, too, which is a little fun. I don't want to burn-up the converter, though, so I just want to make sure it's not slipping and that it's getting the pressure it needs to hold the torque.

Hey radz28, can all what you say can be done on a 20/21 ten speed auto also? From what I understand the 2020 and the 2021 10 speeds have different valve bodies and not as adjustable

[KingLT1]

Originally Posted by lt4camaro

Hey radz28, can all what you say can be done on a 20/21 ten speed auto also? From what I understand the 2020 and the 2021 10 speeds have different valve bodies and not as adjustable

Radz28 is a 2020 or he would not have had to do the conversion from a T93.

[JSH]

Originally Posted by lt4camaro

Hey radz28, can all what you say can be done on a 20/21 ten speed auto also? From what I understand the 2020 and the 2021 10 speeds have different valve bodies and not as adjustable

Brian at Dinosaur Juice Tuning has been tuning my ECM and HHP T87a TCM for 4 months now, when weather allows. Perhaps the first lesson learned is that the 1st gear delete tune should be considered a strip-only tune, because it is very finicky. Otherwise, we haven't seen any oddities.

[lt4camaro]

Originally Posted by KingLT1

Radz28 is a 2020 or he would not have had to do the conversion from a T93.

Oh, ok I was not sure if he was tuning a 2019 TCM. I am on the fence on this KingLT1, one of the forum members was disappointed with his 2020 LT1 T87A swap saying his tuner found very little adjustability especially for torque management between the shifts and the 1st gear WOT throttle getting it to 100%, not even sure if his tuner even knew about the less than 100 % throttle opening business. Its going to cost me $1500 for everything even though I have the HP tuner, which should include the tune, so yeah I am researching the hell out of this.

[radz28]

Originally Posted by lt4camaro

Hey radz28, can all what you say can be done on a 20/21 ten speed auto also? From what I understand the 2020 and the 2021 10 speeds have different valve bodies and not as adjustable

What King' said.

My understanding is similar to yours about valve bodies. It looks like Stangkiller figured out how to adapt an '19 and earlier VB to a 20-and newer with success. I'm not sure what functionality has or has not changed, but it runs.

[Camaro1973]

Originally Posted by lt4camaro

Oh, ok I was not sure if he was tuning a 2019 TCM. I am on the fence on this KingLT1, one of the forum members was disappointed with his 2020 LT1 T87A swap saying his tuner found very little adjustability especially for torque management between the shifts and the 1st gear WOT throttle getting it to 100%, not even sure if his tuner even knew about the less than 100 % throttle opening business. Its going to cost me $1500 for everything even though I have the HP tuner, which should include the tune, so yeah I am researching the hell out of this.

The tune adjustments are exactly the same when the TCM is changed on 2020+ models.

[lt4camaro]

Thanks to all of you guys here on the Forum, I am starting to get my enthusiasm back on this subject.

[radz28]

Originally Posted by Camaro1973

The tune adjustments are exactly the same when the TCM is changed on 2020+ models.

This.

It seems there aren't as many adjustments for A10s as A8s, but what is available is effective. It also seems what might be lacking between the two systems could be made-up-for with a little more ECM-adjustments, perhaps, like adjusting Minimum Spark values, for example. I'm still farting around on TCC-stuff, and seeing if I can understand some of that stuff, but in baby steps. It's kinda' fun, really.

[6spdhyperblue]

Is the throttle held back in lower gears in a 22 SS a10 as well?

Radz28 you mentioned vtt and vve, are you saying that if you leave those stock it will play nicer with the oe TCM?

[SATINSTEEL1LE]

This is disheartening. I have a 21 ZL1 A10 and would like to hit the 1k HP mark. So I would need to tune the trans to make that happen no matter what?

[Z OH 6]

Originally Posted by SATINSTEEL1LE

This is disheartening. I have a 21 ZL1 A10 and would like to hit the 1k HP mark. So I would need to tune the trans to make that happen no matter what?

Yes.