What's the difference between comp mode and the traction off? what do you guys prefer when you want to race? I heard.. simply push the traction control button - traction off! - full throttle
DETAILED INFO REQUIRED!! Thanks in advance!

 

I beleive I am correct in saying when you turn on the competitive driving mode the traction controll is turned off but the active handling is left on, also i beleive the air/fuel mix is slightly richer and if you have the A6 the shift points are slightly more agressive......correct me if I am wrond but this is how I understood it worked when I was selling vettes

 

Thanks a lot! hope others share something.. I appreciate the informations my good friend!

 

welcome....I am sure thats how it works but am also sure that you will get some good info on this from some of the real engine and performance guru's on here....I sold them for a number of years but I wouldnt want me to work on them, not even an oil change...

 

I don't believe that competition mode changes the engine or transmission mapping. It disables traction control and allows more sliding before the active handling system intervenes.

With traction control off and competition mode off, the active handling system steps in much earlier to prevent the car from spinning out or going nose first into the scenery.

 

Googled it:

Competitive Driving Mode
The Corvette Active Handling system will be the first of its type to offer dual mode operation. In addition to an "OFF" mode, in which Active Handling is disabled, the system also allows the driver to select a "COMPETITIVE DRIVING" mode for autocross or gymkhana competitions. In this mode, the Active Handling system remains fully-functional -- measuring steering, yaw rate and lateral acceleration inputs as well as applying individual wheel brakes as required -- but the traction control system is disabled, allowing for some wheelspin and oversteer that skilled drivers often find beneficial in competitive driving.

Summary of Active Handling System Modes
ON - Active Handling is automatically enabled when the car is started. This is also true of the ABS brake and traction control systems OFF - Like traction control, the Active Handling system may be manually turned off if the driver so desires. This is not true of the ABS brake system which is always enabled. COMPETITIVE DRIVING - In this mode, Active Handling and ABS are both enabled, but traction control is shut off.

The OFF and COMPETITIVE DRIVING modes are important features on a high-performance sports car like the Corvette. As mentioned earlier, skilled drivers may find that some wheelspin and oversteer can be beneficial to their lap times in competitive events, and the Corvette system allows them to operate the car in this fashion when appropriate. Chevrolet recommends against selecting these modes for street use. Limitations

The overall effectiveness of the Corvette Active Handling system, or any similar system, is directly related to available tire traction and the aggressiveness of a given maneuver. Active Handling is designed to work to use existing traction to assist the driver -- but it cannot overcome the laws of physics. The Active Handling system reacts only in extreme situations, and special care should be taken when the system does activate because it's a clear signal that vehicle or tire limits are being exceeded.

There is additional information in the owner's manual. Page 4-11 for my 2005.

 

i could be wrong about the fuel and or shifts....but I seem to remember a training video on it.....with the C5 the comp driving mode wasnt realy published in any of the literature, owners manuel or anything so alot of people didnt know about it.....i showed corvette enthusiast who knew more about corvettes than i would ever know the comp driving mode in the c5....but again, i could be wrong about the fuel and or shifts

 

 

I knew someone would come up with it...GREAT!

 

SUPER!!!!!!!!! thanks a lot

 

From Road and Track:

"The new Corvette is nicely balanced with a weight distribution of 51/49 front to rear, a key to its near-neutral road manners. The car's advanced approach to traction and stability control has a large menu of options starting with the normal "on" mode, which allows a bit of wheel slip, giving the Corvette a natural feel in hard acceleration. One push of the traction-control button puts that system to sleep while keeping full yaw control in operation, while a second push puts the car in the competition mode, which dials back the yaw control considerably and allows you to hang the car's tail out. By holding down the button for five seconds, all the systems can be switched off completely."

http://www.roadandtrack.com/article....&page_number=1

 

The short story:

1 press - TC off, full AH on
2 presses in 5 sec - Competitive Mode, TC off, AH on, but with greater tolerances for sliding sideways (what you want on a road course)
1 press for longer than 5 sec - TC and AH off.

With almost 500 RWHP I always shutoff TC when going WOT (however, even with TC on I can spin the wheels with ease). Racing to me is running a road course...in which case I always run in comp mode.

 

Comp mode is fine on the track.

Youll know when it is time to stop using it.

Comp mode will slow you down and wear your brakes quickly as you progress.

I personally keep it off on the track and full handling on the street.

Have fun.

 

Also in norminal mode, say if you spin the tires the computer wouldn't let you up shift until it thinks that the car is under control. Where as in CDM if you spin the wheels you can still up shift any time prior to hitting the rev limiter.

 

What do you mean by "race?"

At the dragstrip I would go to Competative mode. It will turn off the traction control allowing you to get some wheel spin, but if you do end up going sideways toward a wall (or a competetor) it might just save you.

On a road course, I prefer to disable it all completely. It was mentioned above that it will eat the brakes. That's true, VERY true. I had it eat a set of rear pads in 2 1/2 SESSIONS on track. I installed them, at the track, at 8:00 in the morning and they were warped and scortched backing plates before noon. (I forgot to turn off AH.) Some argue that it's better to have a "safety net" at the track, especially if you are new. My philosophy is that you should learn how to control the car WITHOUT help from the beginning. THEN start to step up the speed.

 

Thanks a lot guys for the info!