[Z06] Competitive Mode
Thread Starter
Pro
Joined: Jul 2005
Posts: 585
Likes: 0
From: Jacksonville FL
Competitive Mode
A fellow Z06er recently "informed" me that switching the T/C into competitive mode (on the dyno) results in the motor producing more HP.
Does that sound right?
I can't notice a difference.
Does that sound right?
I can't notice a difference.
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida
In two C5Zs, I made passes at the drags in Competitive Driving mode and it had no adverse affect on my time slips. And it helped keep the car off the wall both times that it got loose on the 1-2 shift.
As for the dyno, the car is strapped down and not likely to either spin the wheels or create yaw. So most folks turn off TC/AH on the dyno. But no matter, power produced should be unaffected either way.
Ranger
Melting Slicks
Joined: Jul 2006
Posts: 2,094
Likes: 5
From: The 7th layer of hell - Western Washington
I am not saying that there is an adverse effect on HP or performance with competitive mode enabled - but there is a definate difference in the pedal.
Say normal driving 1/3 down on the gas pedal gets you 33% throttle (theoretically here people, I don't want a tech head jumping down my throat) when in competitive mode 1/3 down on the gas yields 20% throttle - but you can still gain the full 100% with it to the floor.
The car also seems to have a quicker and snappier steering response with AH and TCS turned off...
Say normal driving 1/3 down on the gas pedal gets you 33% throttle (theoretically here people, I don't want a tech head jumping down my throat) when in competitive mode 1/3 down on the gas yields 20% throttle - but you can still gain the full 100% with it to the floor.
The car also seems to have a quicker and snappier steering response with AH and TCS turned off...
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Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida
Competitive Driving mode is benign unless the steering position sensor and the yaw sensors disagree on the intended vs projected path of the car. Then and only then is countervailing brake action triggered. That's not a condition you are likely encountering on the street.
Many thread in the archives on the perils of street driving (or drag strip) with Active Handling turned off. Suggest new owners read a few to become aware of the risks involved in turning the system off.
Comp mode limits the worst that can happen but has no adverse affect whatsoever on the acceleration of the car in straight line.
Ranger
Racer
Joined: Aug 2006
Posts: 357
Likes: 1
From: Sterling VA
In two C5Zs, I made passes at the drags in Competitive Driving mode and it had no adverse affect on my time slips. And it helped keep the car off the wall both times that it got loose on the 1-2 shift.
As for the dyno, the car is strapped down and not likely to either spin the wheels or create yaw. So most folks turn off TC/AH on the dyno. But no matter, power produced should be unaffected either way.
Ranger
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
Agreed, also, active handling is designed to come into play if it senses the car is going out of control. (ie, in shifts as Ranger said)...You're not shifting the car on a dyno so unless you've got so much power that you start to spin the rollers on the dyno...active handling should be a non issue.
HTH
Burning Brakes
Joined: Apr 2006
Posts: 926
Likes: 12
From: Lutz FL
I am not saying that there is an adverse effect on HP or performance with competitive mode enabled - but there is a definate difference in the pedal.
Say normal driving 1/3 down on the gas pedal gets you 33% throttle (theoretically here people, I don't want a tech head jumping down my throat) when in competitive mode 1/3 down on the gas yields 20% throttle - but you can still gain the full 100% with it to the floor.
The car also seems to have a quicker and snappier steering response with AH and TCS turned off...
Say normal driving 1/3 down on the gas pedal gets you 33% throttle (theoretically here people, I don't want a tech head jumping down my throat) when in competitive mode 1/3 down on the gas yields 20% throttle - but you can still gain the full 100% with it to the floor.
The car also seems to have a quicker and snappier steering response with AH and TCS turned off...
Okay, so after reading this (at work
) I tried something on the way home. I set the cruise control and made a mental note of the RPM on the tach. Then I engaged competetion mode. There was absolutely no change in RPM or speed by engaging or disengaging competition mode. Maybe this has nothing to do with your point, but it seemed like an imperical test of your concept at the time. Had the engine or vehicle speed changed when I changed modes, then that would tend to prove your theory that Competion mode effects engine performance or throttle position. But, there was no change, so......there you have it.
- for whatever that's worth...
Melting Slicks
Joined: Jul 2006
Posts: 2,094
Likes: 5
From: The 7th layer of hell - Western Washington
Okay, so after reading this (at work ) I tried something on the way home. I set the cruise control and made a mental note of the RPM on the tach. Then I engaged competetion mode. There was absolutely no change in RPM or speed by engaging or disengaging competition mode. Maybe this has nothing to do with your point, but it seemed like an imperical test of your concept at the time. Had the engine or vehicle speed changed when I changed modes, then that would tend to prove your theory that Competion mode effects engine performance or throttle position. But, there was no change, so...
...there you have it.
- for whatever that's worth...
) I tried something on the way home. I set the cruise control and made a mental note of the RPM on the tach. Then I engaged competetion mode. There was absolutely no change in RPM or speed by engaging or disengaging competition mode. Maybe this has nothing to do with your point, but it seemed like an imperical test of your concept at the time. Had the engine or vehicle speed changed when I changed modes, then that would tend to prove your theory that Competion mode effects engine performance or throttle position. But, there was no change, so......there you have it.
- for whatever that's worth...
Maybe a better explanation is the throttle feels "squishy" in competitive mode, or is just overall less responsive to added throttle? I don't know how to explain it properly but there is a difference.
I will be hitting the dyno soon (hopefully, it all depends on when it quits snowing) and will make sure to test in both competitive and standard driving modes. Once again not saying that there is a power difference, but it would help with my curiosity...
Melting Slicks
Joined: Jul 2006
Posts: 2,094
Likes: 5
From: The 7th layer of hell - Western Washington
Here is an explanation of the behavior of 2d Generation Active Handling.
Competitive Driving mode is benign unless the steering position sensor and the yaw sensors disagree on the intended vs projected path of the car. Then and only then is countervailing brake action triggered. That's not a condition you are likely encountering on the street.
Many thread in the archives on the perils of street driving (or drag strip) with Active Handling turned off. Suggest new owners read a few to become aware of the risks involved in turning the system off.
Comp mode limits the worst that can happen but has no adverse affect whatsoever on the acceleration of the car in straight line.
Ranger
Competitive Driving mode is benign unless the steering position sensor and the yaw sensors disagree on the intended vs projected path of the car. Then and only then is countervailing brake action triggered. That's not a condition you are likely encountering on the street.
Many thread in the archives on the perils of street driving (or drag strip) with Active Handling turned off. Suggest new owners read a few to become aware of the risks involved in turning the system off.
Comp mode limits the worst that can happen but has no adverse affect whatsoever on the acceleration of the car in straight line.
Ranger
Le Mans Master
Joined: Dec 2001
Posts: 7,788
Likes: 6
From: Winchester TN
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Hi Guys -
No difference - just the active handling is gone in CM.
I had a guy tell me that the car handled differently in CM, i.e. it could go around corners better - he felt the difference in the shocks and spring rates he told me.
It's the new CM Placebo System - adds 10% to the SOTP HP number.
best regards -
mqqn
No difference - just the active handling is gone in CM.
I had a guy tell me that the car handled differently in CM, i.e. it could go around corners better - he felt the difference in the shocks and spring rates he told me.
It's the new CM Placebo System - adds 10% to the SOTP HP number.
best regards -
mqqn
Burning Brakes
Joined: Sep 2002
Posts: 1,077
Likes: 1
From: Greenville SC
Hi Guys -
No difference - just the active handling is gone in CM.
I had a guy tell me that the car handled differently in CM, i.e. it could go around corners better - he felt the difference in the shocks and spring rates he told me.
It's the new CM Placebo System - adds 10% to the SOTP HP number.
best regards -
mqqn
No difference - just the active handling is gone in CM.
I had a guy tell me that the car handled differently in CM, i.e. it could go around corners better - he felt the difference in the shocks and spring rates he told me.
It's the new CM Placebo System - adds 10% to the SOTP HP number.
best regards -
mqqn
MD
Racer
Joined: Dec 2006
Posts: 297
Likes: 0
comp mode
I to have been playing with this. The other day I went into Comp mode and nailed it in second gear at around 40. No tire spin and only about 10 or 15' going into 3rd. Back into normal range and try again at around 40 mph, adding throttle where it starts coming into the cam and the tires start spinning and it catches itself, same thing going into 3rd hard spins like crazy and catches itself again? For some reason the car feels more powerful in normal mode? I don't think it is just me but who cares the car is way to much fun!
Drifting
Joined: Jul 2002
Posts: 1,973
Likes: 152
From: Somewhere in Dallas TX
I to have been playing with this. The other day I went into Comp mode and nailed it in second gear at around 40. No tire spin and only about 10 or 15' going into 3rd. Back into normal range and try again at around 40 mph, adding throttle where it starts coming into the cam and the tires start spinning and it catches itself, same thing going into 3rd hard spins like crazy and catches itself again? For some reason the car feels more powerful in normal mode? I don't think it is just me but who cares the car is way to much fun!
Either way, I never turn mine off. It gives me peace of mind and I hate it how the DIC is useless when in Comp. mode.
Burning Brakes
Joined: Sep 2002
Posts: 1,077
Likes: 1
From: Greenville SC
MD