Throttle Response
Safety Car
Joined: Nov 2007
Posts: 4,435
Likes: 874
From: Bay Area CA
Here is what's going on.....08 and newer standard shift cars have something called "CLUTCH TORQUE MANAGMENT"
For the first time in the history of Corvette the computer is programmed to watch very carefully a sensor on the clutch pedal.
The computer now knows which direction the clutch is traveling, how fast and how far it's depressed or released.
If the clutch is not down as far, fast, or in the right direction as they require for what is considered a complete release of the clutch before shifting....The computers action is to close the throttle and lower spark timing to take torque away from the engine to protect the trans.
The 08 and newer standard shift cars NO LONGER have the reliable T56. Newer cars have been outfitted with the new 6060 trans which so far has been proven to have synchro issues.
In order to protect the trans, this clutch torque management has been implemented.
When doing a tune on these vehicles, the torque management is typically "globally disabled" so that the car lets you shift how you like.
BEWARE!!! Do not attempt to impress your buddies or chirp gears often with a 6060 trans or you will be calling me for TRANNY JOB!.
On another note, for 2 years now, we have been replacing the new 6060 transmissions with the older more durable T56s.
For anyone needing something like that, please give us a call.
Another thing to know is that while the syncros in the 6060 are not so good....
CORVETTES of WESTCHESTER can overhaul your 6060 with much better synchronizers than the unit came with new.
This is your best option for making that trans work better.
Letting most GM dealerships repair this type of problem under warranty is only going to put you right back in the same shape you were in just before the trans started grinding.
Call us if you need a repair like this.
One final note... If you don't shift like a 16 year old kid who stole dad's car for the first time...It will likely last a good long time...
If you do shift it like you stole it, You'll probably be calling me soon.
That's why they put the clutch torque management in the 08 an newer cars.
Stay TUNED!
Chuck CoW
For the first time in the history of Corvette the computer is programmed to watch very carefully a sensor on the clutch pedal.
The computer now knows which direction the clutch is traveling, how fast and how far it's depressed or released.
If the clutch is not down as far, fast, or in the right direction as they require for what is considered a complete release of the clutch before shifting....The computers action is to close the throttle and lower spark timing to take torque away from the engine to protect the trans.
The 08 and newer standard shift cars NO LONGER have the reliable T56. Newer cars have been outfitted with the new 6060 trans which so far has been proven to have synchro issues.
In order to protect the trans, this clutch torque management has been implemented.
When doing a tune on these vehicles, the torque management is typically "globally disabled" so that the car lets you shift how you like.
BEWARE!!! Do not attempt to impress your buddies or chirp gears often with a 6060 trans or you will be calling me for TRANNY JOB!.
On another note, for 2 years now, we have been replacing the new 6060 transmissions with the older more durable T56s.
For anyone needing something like that, please give us a call.
Another thing to know is that while the syncros in the 6060 are not so good....
CORVETTES of WESTCHESTER can overhaul your 6060 with much better synchronizers than the unit came with new.
This is your best option for making that trans work better.
Letting most GM dealerships repair this type of problem under warranty is only going to put you right back in the same shape you were in just before the trans started grinding.
Call us if you need a repair like this.
One final note... If you don't shift like a 16 year old kid who stole dad's car for the first time...It will likely last a good long time...
If you do shift it like you stole it, You'll probably be calling me soon.
That's why they put the clutch torque management in the 08 an newer cars.
Stay TUNED!
Chuck CoW
Clutch TM can be frustrating if your shifts are not flat or smooth. Any slight delay in releasing the clutch will activate clutch TM. It feels like you hit a rev limiter. TM is GM's way of protecting the transmission under their 5 yr. powertrain warranty. As frustrating as it can be at times, I can understand why GM did this. We are in a catch 22, if we keep the TM programed as is, we may at times experience clutch TM. If we remove it, we increase the risk of damage to the syncros. Of course, the third alternative is to install better syncros. It looks like I will be giving you a call when my warranty is up.
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
Regardless...it's the same.
Regardless....The torque management in the A6 is actually the same mechanism as the stick.
In an A6, when the trans controller wants to begin changing gears (exactly the same as when the driver of the stick car begins to push down on the clutch) the trans asks for "TORQUE REDUCTION" from the engine controller.
The trans controller requests "torque reduction" of the engine.
The engine controller lowers timing and closes the throttle.
The trans begins shifting.
When the shift is COMPLETE, the trans controller signals the engine controller that the shift is complete and the trans is "IN GEAR".
The engine controller ramps the throttle and spark timing back to their original values.
During this event, the driver clenches his fists and says "DAMN TORQUE MANAGEMENT SUCKS!!!"
Lastly, the driver calls Chuck CoW for a TUNE!
That's how it works.
Chuck CoW
Melting Slicks
Joined: Dec 2009
Posts: 3,213
Likes: 17
on my 04 instaled hipertech tuner ,set shift point 100% firm ,thing jerked your head off when it shifted.you have opp. to also change rpm' shift points .was realy impresed with this product......don't know if they make it for 08 09,had mine put on dino...............
