On my 03 z06 when I put it in competitive mode, I can not get the words "competitive mode" to go away so I can display oil or coolant temps. I spoke to someone with a 04 z and they said the "competitive mode "display could be removed and other info displayed. Anyone know a trick to get this to work on an 03? Thanks

 

Hit the reset button if you have not already.

 

Press the RESET button .... RTFM

 

Reset.....

 

so does hitting the reset button reset the competition mode back to default or keep it in the competion mode?

 

RESET clears the message on the DIC .... it does not change what "mode" the EBCM is in ...... to change the EBCM mode you use the button in the central console .... the EBCM does not see what buttons are pushed on the DIC console.

 

I've wondered this before, also, but never asked it. Thanks!

 

If you want to test it.....do a burnout after the DIC message is reset.

 

 

If you want to test it, push the Comp/TCS button again (after hitting reset) and it will say you are now back in TCS ON mode. That's how I figured it out. No need to do a burnout.

 

More funner using the burn-out method.

 

Also I think if you turn your car off while in Competitive mode, when you restart your car it will display "Traction Control On."

 

Nothing special like this. Once the engine is turned off the EBCM loses power and does not remember what mode it was set to before.

Bill

 

You can also use the reset button to clear the "door ajar"so you can read the gauges without closing the door.

 

Reading my mind?? I was wondering about this today,,,BAM here it is!!! Yesterday I posted about how to run both fans at the strip.That started me wondering if I could bring up the water temp on the DIC after comp. mode was displayed.I figured the digital read out would be easier/more accurate than looking at a needle on a gauge.Noe I know how!! Thanks guys

 

I thought the competition mode turned off the traction control but left the active handling on.. Maybe someone can explain.. My 99 only had traction control.. I've had the z06 for just over a month.. This active handling /comp mode is new to me. What advantage does the active handling have over the comp mode or vise versa.. Sorry for my ignorance

 

Just FYI you DONT have to have a Z06 to turn on comp mode. you just hold down the Trc ctrl button for 5 sec on any vette to apply the comp mode.

 

Not on ANY Vette. All don't have competition mode. If you hold down the button for 5-10 seconds and it doesn't say competitive driving, you don't have it. On the earlier models, as stated, the car must be stopped to enter the mode.

David426, your statement is correct. Competitive driving turns off traction control and leaves active handling on. It allows wheel spin, but still helps control all other aspects of driving, such as fishtail.

 

As 65GGvert correctly points out ... not all C5's have "Active Handling" .... it is RPO code JL4, and even if you have it, if your car is prior to model year 2001, the car must be stopped to go into "Competition" mode.

OK - let's review what "Active Handling" (AH) and "Traction Control" (TC) do ....

TC is controlled by the EBCM. The EBCM reads the input from the 4 wheel speed sensors. When it sees the rear wheel speeds are higher than the front wheel speeds by a pre-programmed amount (TC will allow SOME rear wheel slip) the EBCM requests the PCM to reduce engine torque. The EBCM and PCM have a dedicated communication path that passes a "requested torque" signal from the EBCM and a "delivered torque" signal from the PCM. The two computers work together to attempt to eliminate rear wheel spin. If the PCM has reduced torque and the rear wheels are still spinning faster than the front wheels then the EBCM can apply the rear brakes (using the Brake Pressure Modulation Valve - BPMV) to control rear wheel speed.

TC is meant to provide maximum acceleration without loosing rear wheel grip ..... even Formula1 drivers like TC ... so as of this year it is banned from F1 .....

AH is also controlled by the EBCM. The EBCM looks at input from the "Steering Wheel Position Sensor" (SWPS), a lateral accelerometer (measures sideways G forces), a yaw rate sensor (measures how fast the vehicle is "rotating"), and vehicle speed (calculated by averaging the speed of the 4 wheel speed sensors).

When you turn into a corner (SWPS reports you turned the wheel X number of degrees) the EBCM immediately calculates (using vehicle speed and your steering angle) how fast the vehicle should "rotate" and what lateral force should be generated. It then compares the calculated values to what the yaw sensor and accelerometer are reporting ..... if the numbers don't match within a certain range, the EBCM will use braking at a single caliper to bring the vehicle's actual yaw and lateral acceleration back into range with the calculated values.

An example will help ......

You come blasting along the freeway and suddenly decide to take an exit, so you turn to the right. The car "understeers" .... that is, even though you have turned the wheel the car continues to move in a straight line, only slowly responding to your steering input. But not in your Corvette ... the EBCM will see that you turned the wheel, but the yaw and lateral accel will show little actual "turn" occuring .... so the EBCM will generate brake pressure to the front right brake caliper. This will cause the car to "rotate" around the front right brake (making it turn right like you want) and will also cause weight transfer (because the car is braking) to the front wheels, which increases their grip and therefore their ability to turn the car. Once the car is turning at the rate you requested with the steering wheel the EBCM will release pressure to the right front brake.

OK ... so we have two systems and we can use them in 3 different combinations ....

1) Both systems ON ..... this is the "default" mode whenever you start the car. Regardless of how the EBCM was set before ... as soon as you start the car the EBCM will start in "default" mode.

2) "Competitive Driving" mode ..... TC is OFF and AH is ON. This is a mode favored for, say, drag racing (obviously at a legal track). I can get as much wheel spin as I want ... but if the tail end suddenly steps out and the car starts to spin AH will step in and (hopefully) save my azz. You need to hold down the TC/AH button for 5 seconds to enter this mode.

3) Both OFF ... simply press the TC/AH button once after you start the car and you will enter this mode. This mode is used by smart drivers at a "road course" type race track. They want to push the car to its limits by using their driving skills, rather than relying on a computer to control the car. This mode is also used by idiot drivers for driving on the street. There is no logical reason to turn these systems off for legal street driving.

Hope this helps ....

 

of course... at the posted speedlimit per forum guidelines