Holden Commodore Limited Edition models

[426Cuda]

Yeah I Agree, it sounds confusing. But it does say something about ESP, torque vectoring and throttle response or similar. I assume it changes the way the throttle body butterfly opens, fuel delivery etc?

 

[monstar]

Yeah I Agree, it sounds confusing. But it does say something about ESP, torque vectoring and throttle response or similar. I assume it changes the way the throttle body butterfly opens, fuel delivery etc?

See! Thank you for demonstrating.
No, ESP software does not enhance engine performance, it networks with both passive and active vehicle dynamics systems in the areas of steering, powertrain, and chassis to influence vehicle handling.
All zeta models already have Bosch Dynamic Wheel Torque Control by Brake (DWT-B), torque vectoring is the common term for additional networking of active suspension data (from MRC) to become DWT + ESP (DWT-E).

 

[RED LION]

Anyone here getting The Director? I've been keeping an eye out for them on the road but nothing

 

[Alchemistry]

Anyone here getting The Director? I've been keeping an eye out for them on the road but nothing

Hi Red Lion: I have a Director on order and the production date is 31 August with delivery for 8th September. Unlikely to see any on the road for a while.

 

[426Cuda]

See! Thank you for demonstrating.
No, ESP software does not enhance engine performance, it networks with both passive and active vehicle dynamics systems in the areas of steering, powertrain, and chassis to influence vehicle handling.
All zeta models already have Bosch Dynamic Wheel Torque Control by Brake (DWT-B), torque vectoring is the common term for additional networking of active suspension data (from MRC) to become DWT + ESP (DWT-E).

Nope. I didn't demonstrate what you thought. Of course ESP doesn't affect engine performance. It can affect vehicle performance though. I included it above, because it was in the same sentence in the vid. Tq control via timing and fuel, not just brakes at the wheel. So in track mode, it's balls out re timing, throttle butterfly and fuelling, for more spirited performance. That's what I'm assuming Monzy. What say you?

 

[GMHDIR]

Anyone here getting The Director? I've been keeping an eye out for them on the road but nothing

Same here Red Lion , production date 29th August , delivery 4th Sept , don't believe they start building them till August from what I've seen .
Does anyone have any earlier dates ?

 

[Martin Norris]

Nope. I didn't demonstrate what you thought. Of course ESP doesn't affect engine performance. It can affect vehicle performance though. I included it above, because it was in the same sentence in the vid. Tq control via timing and fuel, not just brakes at the wheel. So in track mode, it's balls out re timing, throttle butterfly and fuelling, for more spirited performance. That's what I'm assuming Monzy. What say you?

G'Day Cuda, I think we all no there is no change to engine performance regardless of the driver mode. In track mode I expect the throttle body butterfly responds at a different rate to the accelorator position so it becomes more responsive/touchy, maybe WOT at 3/4 accelorator travel. Torque vectoring I would expect is through the traction control in that when taking a RH turn (for example) the brake is applied to the rear RH wheel directing more torque to the outside wheel which would aid turn-in through the corner. I would imagine there would be alot of tuning required to get this to work well because as you know its intention is for track use as an aid at the limits of traction, at this point small adjustments can make a big difference. Without knowing all the acronyms that goes with the systems the Redline has onboard, that's my basic take on it as a relative dumb farker

 

[Martin Norris]

HaHa, no = know, folks are dumb where I come from

 

[monstar]

Nope. I didn't demonstrate what you thought. Of course ESP doesn't affect engine performance. It can affect vehicle performance though. I included it above, because it was in the same sentence in the vid. Tq control via timing and fuel, not just brakes at the wheel. So in track mode, it's balls out re timing, throttle butterfly and fuelling, for more spirited performance. That's what I'm assuming Monzy. What say you?

Sure! My idea of performance is not limiting torque but yeah it does reduce engine output in a programmed manner to greater gain. Actual performance (reduction or otherwise) has nothing to do with an intervention of the knob position to normal operation of the exhaust valves as at 1:24. My point was this dumbing down and using incorrect term that means something else related to engine operation introduces confusion that performance is enhanced by the knob affecting the (engine) exhaust valves, vs exhaust note control valves.

 

[monstar]

G'Day Cuda, I think we all no there is no change to engine performance regardless of the driver mode. In track mode I expect the throttle body butterfly responds at a different rate to the accelorator position so it becomes more responsive/touchy, maybe WOT at 3/4 accelorator travel. Torque vectoring I would expect is through the traction control in that when taking a RH turn (for example) the brake is applied to the rear RH wheel directing more torque to the outside wheel which would aid turn-in through the corner. I would imagine there would be alot of tuning required to get this to work well because as you know its intention is for track use as an aid at the limits of traction, at this point small adjustments can make a big difference. Without knowing all the acronyms that goes with the systems the Redline has onboard, that's my basic take on it as a relative dumb farker

No you got it in a nutshell I think. Worth underlining that torque vectoring per usual definition of independent wheel braking as you mention above (DWT-B) is already in place with all Zeta chassis. The actual torque vectoring upgrade with MRC differs in that the ESP talks to the suspension as well (DWT-E). So does it more and with a new suite of dynamics.