TM is now history
Despite some fairly good dyno numbers, my car was a dog at launch. My best track launch was a crummy 2.15. I could get some wheelspin for a burnout by brake torqueing, but off the line I got no wheelspin whatsoever, either at the track or on the street.
Those days are gone forever. The car now launches like a wild beast (at least compared to before), and leaves 10 feet of rubber on the 1-2 shift. It's like a completely different car.
See my thread in the Scan & Tune section for details. If you're considering a mail order tune from CoW, you won't be disappointed.

Despite some fairly good dyno numbers, my car was a dog at launch. My best track launch was a crummy 2.15. I could get some wheelspin for a burnout by brake torqueing, but off the line I got no wheelspin whatsoever, either at the track or on the street.
Those days are gone forever. The car now launches like a wild beast (at least compared to before), and leaves 10 feet of rubber on the 1-2 shift. It's like a completely different car.
See my thread in the Scan & Tune section for details. If you're considering a mail order tune from CoW, you won't be disappointed.
Glad to hear from someone who had a tune and can verify the TM program can be worked around. Did you remove and send your PCM to them for the tune? I have several local places to go for the tune on my 05, but I don't get the warm and fuzzies about their ability to work around the TM code and that is the piece I want fixed the most. Congrats on the upgrade, I bet its like having a completely different car.
I am getting my car tuned on Tuesday with HP tuners, hopefully I'll be as happy as you are
Howard

So with more break in miles, TM removed, and killer air, I bet you'll see 12.1s or maybe even 12.0s!!
Glad to hear from someone who had a tune and can verify the TM program can be worked around. Did you remove and send your PCM to them for the tune? I have several local places to go for the tune on my 05, but I don't get the warm and fuzzies about their ability to work around the TM code and that is the piece I want fixed the most. Congrats on the upgrade, I bet its like having a completely different car.
Most of the TM tables seem to apply whether the car is an M6 or an A6. The tables show the max TQ allowed in each gear. Exactly how the TQ is computed and/or measured is not obvious. As has been surmised by others, the torque is managed by retarding the timing. There is even one table that controls the retard decay rate --- how quickly the spark advance is returned back to its normal setting.
The HP Tuners software has easy to understand screen displays. As soon as the beta release goes into full production, I will probably get my own copy.
The '05 is apparently a little easier to tune than the '06. There was another forum member at the shop at the same time, also getting a tune. He also left with a big smile on his face.
The Best of Corvette for Corvette Enthusiasts
So with more break in miles, TM removed, and killer air, I bet you'll see 12.1s or maybe even 12.0s!!
If I do get some tuning/TM work done it will likely be along with thermostat/fan settings install as well but I too would certainly like to see what kind of gains I could see from it.
Despite some fairly good dyno numbers, my car was a dog at launch. My best track launch was a crummy 2.15. I could get some wheelspin for a burnout by brake torqueing, but off the line I got no wheelspin whatsoever, either at the track or on the street.
Those days are gone forever. The car now launches like a wild beast (at least compared to before), and leaves 10 feet of rubber on the 1-2 shift. It's like a completely different car.
See my thread in the Scan & Tune section for details. If you're considering a mail order tune from CoW, you won't be disappointed.
Hope you don't bust anything now that its gone.



I've heard of a few stock C6's blowing their differentials at the dragstrip. With TM throttled down or off, a little caution might be best.
("A gram of prevention is worth a kilo of cure"....go metric)!

The tables show the max TQ allowed in each gear. Exactly how the TQ is computed and/or measured is not obvious. As has been surmised by others, the torque is managed by retarding the timing. There is even one table that controls the retard decay rate --- how quickly the spark advance is returned back to its normal setting.
The HP Tuners software has easy to understand screen displays. As soon as the beta release goes into full production, I will probably get my own copy.
The '05 is apparently a little easier to tune than the '06. There was another forum member at the shop at the same time, also getting a tune. He also left with a big smile on his face.
does it display differently for a4s ?
can the same software be used to 'tune' a variety of vehicles ? i.e not corvette specific.
is it possible to use the same software to tune a suburban or an avalance, etc. etc. etc. ? a vehicle that is 4wd or awd.
did you have only the tm parameters changed or did other items get tuned as well ?
otherwise, nice improvement, cool.
even though they can't tune the tcm for the a6, the torque table per gear still apply ?
YES
does it display differently for a4s ?
DON'T KNOW FOR SURE, AS I'VE ONLY SEEN THE SCREENS FOR THE A6, BUT I SUSPECT THEY'RE THE SAME, AS THEY STILL HAVE 6 GEARS.
can the same software be used to 'tune' a variety of vehicles ? i.e not corvette specific.
YES.
is it possible to use the same software to tune a suburban or an avalance, etc. etc. etc. ? a vehicle that is 4wd or awd.
YES.
did you have only the tm parameters changed or did other items get tuned as well ?
NO, LOTS OF TABLES AND PARAMETERS GOT CHANGED. I BASICALLY GOT THE SAME TUNE AS ANOTHER GUY ON THE FORUM (BLVDBASHER?), WITH A LITTLE TWEAKING TO CLEAN UP THE LTRIMS.
otherwise, nice improvement, cool.
MONSTER IMPROVEMENT.
Hey there HITMAN!
Hope you got home on time..... Thanks so much for the great posts...It was a pleasure working with you....
If anyone else has questions on tuning 06 & 07 A6 Corvettes, please don't hesitate to call me in the shop...Nights and evenings are always good as well.....Calling in your questions allows me to explain alittle clearer what it is that I do.....
Call any time...
STAY TUNED!
Chuck CoW




I have HPtuners and I will turn it off and on repeatedly for anyone that thinks it isnt real and it does have an effect of the 6 speed. It works by cutting timing which is just as bad on the motor regardless of the type of transmission.
Let me know where and when and you travel to me...Long Island NY till Nov 1 and then down in Memphis for some time.

I have HPtuners and I will turn it off and on repeatedly for anyone that thinks it isnt real and it does have an effect of the 6 speed. It works by cutting timing which is just as bad on the motor regardless of the type of transmission.
Let me know where and when and you travel to me...Long Island NY till Nov 1 and then down in Memphis for some time.
either place isn't too far for me so i just may take you up on your offer sometime. you wouldn't happen to be going to the 'skyline' cruise, would you ?
Since you already have headers installed, I'd recommend the CoW mail order tune. You'll get the TM turned off, plus a whole lot more.













