[KenCary]

Can someone explain exactly what "torque management" is as it applies to the ECM? Is this strictly a feature of Nitros with automatic transmisssions?

I have been told that torque management is more or less defueling between shifts to control the torque and power to be gentle on a stock tranny.

It does not feel like my 6-speed Nitro backs off any power when I put in the clutch.

This is likely a question for NitroTech.

Ken

 

[v8demon]

You want the super-nuts-thorough answer read here: http://vehicle.me.berkeley.edu/Publications/EC/lamberson_ms_thesis.pdf

The short answer is the ECU takes the input you give the throttle in the electronic throttle system, reads that input, determines if there is wheelspin or some other factor that would necessitate less throttle and adjusts the value accordingly for the most power delivered without wasting gas and keeping compliant with emissions.

That being said you can still spin the tires and whatnot, but in a car with TM turned off it's MUCH easier. TM can be used with manual transmission cars as well.

My Mustang HAD TM from the factory... Not anymore. With programming changes you can change how aggressive or non-aggresive the torque management is or you can eliminate it altogether to where the electronic throttle reads the pedal input and gives theat exacct amount of throttle without adjusting it.

 

[acx]

generally speaking yes I believe you are correct, the torque mgt system will cut power on shifts.

I wish chrysler would play ball with aftermarket companies or someone could crack their system like superchips or diablo has done for the Ford platform as v8 demon mentions. That is 1 thing I miss about my mustang.

I know the new 05+ gts are night and day before and after a tune. :smileup: I know on those the throttle body starts closing as you approach redline at WOT.

 

[v8demon]

I know the new 05+ gts are night and day before and after a tune. :smileup: I know on those the throttle body starts closing as you approach redline at WOT.

In stock trim in 1st and 2nd gears it WILL NOT give full throttle. It limits throttle to 85% in 1st; 90% in 2nd.

Before I went with the supercharger I added a tune and an intake. 30 HP.

 

[KenCary]

You want he super-nuts-thorough answer read here: http://vehicle.me.berkeley.edu/Publications/EC/lamberson_ms_thesis.pdf

The short answer is the ECU takes the input you give the throttle in the electronic throttle system, reads that input, determines if there is wheelspin or some other factor that would necessitate less throttle and adjusts the value accordingly for the most power dilevered without wasting gas and keeping compliant with emissions.

That being said you can still spin the tires and whatnot, but in a car with TM turned off it's MUCH easier. TM can be used with manual transmission cars as well.

My Mustang HAD TM from the factory... Not anymore. With programming changes you can change how aggressive or non-aggresive the torque management is or you can eliminate it altogether to where the electronic throttle reads the pedal input and gives theat exacct amount of throttle without adjusting it.

Calling Nitro tech.

Other than in the case of ESP engagement or during roll-over mitigation, is there torque managment on my 6-speed Nitro?

 

[acx]

In stock trim in 1st and 2nd gears it WILL NOT give full throttle. It limits throttle to 85% in 1st; 90% in 2nd.

Before I went with the supercharger I added a tune and an intake. 30 HP.

Oh I know they respond well to mods. I still am in the stang scene due to alot of my friends having them (I sold mine and am waiting for a Challenger).

Lots of guys as you know making over 300rwhp with basic boltons. everyone I talk to says the same thing - intake and tune make it feel like a new car.

 

[KenCary]

In stock trim in 1st and 2nd gears it WILL NOT give full throttle. It limits throttle to 85% in 1st; 90% in 2nd.

Before I went with the supercharger I added a tune and an intake. 30 HP.

To what car are you referring and with what transmission in this post?

 

[NitroTech]

Can someone explain exactly what "torque management" is as it applies to the ECM? Is this strictly a feature of Nitros with automatic transmisssions?

I have been told that torque management is more or less defueling between shifts to control the torque and power to be gentle on a stock tranny.

It does not feel like my 6-speed Nitro backs off any power when I put in the clutch.

This is likely a question for NitroTech.

Ken

Torque Management uses a selective fuel shut off to achieve a 50% reduction in engine output torque and a 30% reduction in energy dissipation during shifts. Shifts are very smooth because the electronic control senses input and output speed changes as shifts occur and adjusts hydraulic pressure accordingly. Adaptive electronic control provides up shifts and down shifts with a smoothness unattainable with strictly hydraulic transmissions.

Calling Nitro tech.

Other than in the case of ESP engagement or during roll-over mitigation, is there torque management on my 6-speed Nitro?

No. However, the PCM will control the ETC during shifts. It typically commands the ETC to hold or slightly increase RPM during shifts. :smileup:

 

[v8demon]

Torque Management uses a selective fuel shut off to achieve a 50% reduction in engine output torque and a 30% reduction in energy dissipation during shifts.

Different than the Ford system. It doesn't interfere in any other way?

To what car are you referring and with what transmission in this post?

S197 Mustang GT (2005 & UP) both auto and manual trans.

 

[KenCary]

Torque Management uses a selective fuel shut off to achieve a 50% reduction in engine output torque and a 30% reduction in energy dissipation during shifts. Shifts are very smooth because the electronic control senses input and output speed changes as shifts occur and adjusts hydraulic pressure accordingly. Adaptive electronic control provides up shifts and down shifts with a smoothness unattainable with strictly hydraulic transmissions.



No. However, the PCM will control the ETC during shifts. It typically commands the ETC to hold or slightly increase RPM during shifts. :smileup:

Thank you that makes me feel better.

Now that you mention the PCM holding or increasing the RPM during shifts, that explains why sometimes my shift into first is not as smooth as I would like. It somethimes feels that I am getting more gas than my foot is telling the Nitro to give.

I guess they programmed it to avoid stalling for inexeperieneced drivers.

Ken