As I understand it, doesn't effect the fuel tables. Comp mode only
effects the lean angle sensors. Which apply the brakes if the senor
detects too much lean in the car, and slows you done.
In the comp mode you turn off traction control and the lean angle
sensors. As I said this my understanding of the mode.
January, first time with the car, 13.55, button on, button off, same. February, with a Halltech intake, competitive mode on, same stock tires and reading the tips posted on this site for launches, 12.62. I still have a few more tenths in her as my 60 foot times are not what they should be yet, launching correctly is very hard, takes patience, at elast on our track it does.
After all, if this mode gives you about the same computer tune as the DiabloSport or Hypertech tuners, why bother?! Just a thought.
I agree above, that the Comp mode in or out doesn't effect engine performance. From what I understand, the Comp mode on will prevent wheel spin and reduce engine power by cutting off fuel when wheel spin is recognized. This will cause the car to bog on a launch if you spin the wheels, thus reducing your 60's and subsequent et. Leave the traction control on as it will help keep you right if you go sideways.
But I think the bigger difference is from more experience. You stated your observations from your 1st and 2nd outings. My times dropped like a rock from the 1st time due mostly to improved skill I believe. Keep up the practice and stay save....
remember get out of it when ever it doesn't feel right, there is always another run
And without stating where this is documented by GM, I don't see how you can be so authoritative about this. I'm not doubting what you said, just looking for your sources.
yo, a little less caffeine , here is an article...
Awesome! That is what I was looking for, thank you.
And I don't think it is unreasonable to ask for more than anecdotal responses, after all, this IS the internet. No disrespect was intended on my part and I made it clear in my original request for documented evidence.
This article is about '99 cars, so it still seems possible that more was done to the '04 computers as they are far more sophisticated than the '99 models. Again, thank you for the link.
Caffeine-free, me? I think not.
Here are afew more links, one specific to 2001-2004 Z06's
Perhaps you could look in your "owners manual" which should serve as documented evidence of what the competition mode encompasses. My '99 manual states, "Competitive Driving mode allows the driver to have full control of the rear wheels while the Active Handling System helps steer the vehicle by selective brake application." No mention of any ECM alternate mapping also taking affect.
But then, you state the '04 computer is "more sophisticated" and perhaps your manual states alternate engine management programming/mapping is employed for your vehicle. Never read about it in any other posts. Then again afterall, this is the Internet and you too can do additional searches for the definitive documentation you so desire. Hope this is helpful.
Perhaps you could look in your "owners manual" which should serve as documented evidence of what the competition mode encompasses. My '99 manual states, "Competitive Driving mode allows the driver to have full control of the rear wheels while the Active Handling System helps steer the vehicle by selective brake application." No mention of any ECM alternate mapping also taking affect.
But then, you state the '04 computer is "more sophisticated" and perhaps your manual states alternate engine management programming/mapping is employed for your vehicle. Never read about it in any other posts. Then again afterall, this is the Internet and you too can do additional searches for the definitive documentation you so desire. Hope this is helpful.
From the '03 Z06 owner's manual - under the "Driving Your Vehicle" section - page 4-11 - red added for emphasis:
"Competitive Driving mode allows the driver to have full control of the rear wheels while the Active Handling System helps steer the vehicle by selective brake application. The instrument cluster light will not be on. The Traction Control System will not be operating. Adjust your driving accordingly."
From the '03 Z06 owner's manual - under the "Driving Your Vehicle" section - page 4-11 - red added for emphasis:
"Competitive Driving mode allows the driver to have full control of the rear wheels while the Active Handling System helps steer the vehicle by selective brake application. The instrument cluster light will not be on. The Traction Control System will not be operating. Adjust your driving accordingly."
I'd have to go out to the garage (at 1:00 AM) and get the owners manual out of my 1999 coupe. But the above is very nearly what's in the 1999 Owners Manual that came with my 1999 coupe.
The operations video, which also came with my 1999 coupe, talks about Active Handling in detail. It points out that there is a yaw sensor (if you inserted an axle vertically through the center of the car, the rotation around it would be yaw - from my flight school days) under the dash, and a sensor that detects the steering wheel input.
The program for Active Handling compares the input to the steering wheel with the measurements by the yaw sensor and, if your car is changing yaw disproportionately to the steering wheel input, selectively applies brakes one at a time, while depowering the engine as appropriate, to reel it back in.
Of course, as they point out, they can't overcome the laws of physics. If I hit the turn at the south end of Road S, where it sweeps into Road 33 in a tight right turn, at some exorbitant speed, I'm gonna crash. If, however, I enter it at a manageable speed (within the coefficients of friction for my tires, and roll for my suspension), I can, in theory, punch it and Active Handling will keep my sorry middle-aged backside out of Farmer John's alfalfa field.
Traction Control, on the other hands, just uses fuel cut-off and brakes to try to keep the wheels from spinning...
Your mileage may vary. The owner's manual is available from West Coast Corvettes, along with the rest of the folder contents, should you require one.
Corvette Store
Competitive Mode Details
, here is an article...
