New A6 Transmission parameters walkthrough

[carneb]

2.23!!!! Damn, I bought straight from HP. I guess I just download the latests and greatest version.

Anything made by ZF is top notch. ZF is light years ahead of GM when it comes to trannies, but GM doesn't just build trannies.

CALL ME STUPID BUT I CAN'T FIND VERSION 2.23. Can someone point me in the right direction?

2.23 is the beta version. You have to email support and request to get access to it.

[midevil1]

2.23 is the beta version. You have to email support and request to get access to it.

Thanks.

[LSX378]

2.23 is the beta version. You have to email support and request to get access to it.

OK. So the giant leap forward for A6 calibration was in 2.22?

[carneb]

OK. So the giant leap forward for A6 calibration was in 2.22?

Yes. Lots more parameters were added in 2.22

[midevil1]

Download the newest version on the customer page. It has ALL the newest parameters.

I never thought I would get the A6 to chirp 3rd, but........and on 24's!

[LSX378]

Download the newest version on the customer page. It has ALL the newest parameters.

I never thought I would get the A6 to chirp 3rd, but........and on 24's!

Hey cool!

Is this at WOT? What rpm is the 2-3 shift point at?

[midevil1]

Hey cool!

Is this at WOT? What rpm is the 2-3 shift point at?

I set all my normal WOT shift points at 5800. Don't need to pull any more than that. Besides, this truck is heavy!!

I will post my tune when I am done. The A6 just needs alittle direction and she performs on a whole new level. Being a tranny tech gives me alot of insight on what is going to work. With the total tunability of the A6 and what you can actually change. The skies the limit. I have noticed alot of stuff that can get you in trouble and on a wrecker if you are not careful and you think too much.

[Billf6531]

I look forward to some suggested shift timing changes based on expert testing. I'm surprised Russ Kemp hasn't posted here. I think I've read and learned from every one of his A4 postings.

[bluessv]

Can someone quickly explain what the new tables for Torque Management do?? Like, what the hell is Tip-in TqMgt, Flare TqMgt and skip??

[Chris@HPTuners]

Tip-in is when you tip-in during a shift, ie. shift has started and you increase throttle during the shift.

Flare is used to limit engine RPM increase to a limit during a shift, often during power downshift skip shifts

A skip downshift is when the trans makes a multiple gear downshift eg. 5-3 by shifting 5-N-3. A clutch to clutch transmission can make this shift by simply disengaging all clutches and selecting the correct oncoming clutches for the desired gear. Obviously when the trans is in neutral, engine RPM will increase quite a lot without torque management. Nonetheless, some people have requested the ability to disable this. Note that simply disabling the powerdownshift torque management is not enough, there are extra checks for skip downshifts as well (obviously GM didn't want to make it too easy to disable it for calibrators).

http://www.hptuners.com/forum/showthread.php?t=22771

[[email protected]]

We've been doing a ton of testing on the new A6. Midevil1 is totally right, the A6 can be an incredible transmission (and complicated). We have 2 test cars, one's an 08 Vette LS3 A6 and the other a 2009 Pontiac G8 GT. On the Vette, the paddle shifters were almost useless unless you pulled the trigger at 4500 RPM at WOT. Otherwise it would just bang the rev limiter. Fortunatley we've gotten it set up to work great now, it's incredible! Paddle shifting is really fun when it's tuned right.

The G8 has a nice shift as well... We're in the middle of writing it up now.

Bob

[midevil1]

You can, and I have virtually eliminated the skip shift and flare shift issue's that the transmission had with the stock tuning. I would almost dare to say it is gone. If anyone is familiar with the 5r110 Ford tranny and the TOW option it has and how it keeps you from virtually not needing to use your brakes.? I have got the A6 doing exactly that! I am excited for GM guys. That was something that I always loved about Ford. Playing with MPH, RPM, pressure, and timing of your upshift and downshift will reap wonderful results.

I haven't seen tranny temps over 145 degrees even in aggressive upshift and downshift driving. Tranny is capable of barking 3rd gear and banging the driveshaft in 4th. This is being done in a 6000lb Yukon Denali on 24's. I can't say enough about how impressed I am with this tranny. GM has finally built a real tranny, since the days of the Turbo models!

[8850]

We've been doing a ton of testing on the new A6. Midevil1 is totally right, the A6 can be an incredible transmission (and complicated). We have 2 test cars, one's an 08 Vette LS3 A6 and the other a 2009 Pontiac G8 GT. On the Vette, the paddle shifters were almost useless unless you pulled the trigger at 4500 RPM at WOT. Otherwise it would just bang the rev limiter. Fortunatley we've gotten it set up to work great now, it's incredible! Paddle shifting is really fun when it's tuned right.

The G8 has a nice shift as well... We're in the middle of writing it up now.

Bob

Would be interested in knowing how when you get it written up.

[midevil1]

My A6 tranny tune got knocked down a few notches. Watch out! 2.23 has some NASTY bugs. Got my TCM back incase someone from support reads this....thanks anyway. I am sticking with 2.22 until someone tells me all is clear with 2.23.

BETA says it all. I know.......

[Mep_q8]

what exactly happened?? Please PM me if u don't wanna say here.. I don't wanna ruin my A6 with the beta

[Bill@HPTuners]

My A6 tranny tune got knocked down a few notches. Watch out! 2.23 has some NASTY bugs. Got my TCM back incase someone from support reads this....thanks anyway. I am sticking with 2.22 until someone tells me all is clear with 2.23.

BETA says it all. I know.......

I would like to know what happened as well

[midevil1]

I would like to know what happened as well

That's why I didn't devulge any details. Do you want me to PM you details? It sneaks up on you slowly and WALA!

[Bill@HPTuners]

I think the screenshot explains where you need to send the details.

[johnh]

Anyone know why G8 GXP trans tune is so much different the G8 GT. The TCC I can understand from the rear gear ratio, but pressure and inertia tables are much different.

Bill any ETA on the official release? Last I heard was April.

[Bad Habit Z]

When I first downloaded the tune for my car I had a lot more options under the "Shift Properties" tab. Now I only have the following options showing up. How can I get the rest of the properties to show up?