Torque Management
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From: Orange County, CA
Torque Management I have a 00 SS a4 and was thinking about getting this deleted.
My mods are: lid, gears, and thats it.
But in the nexted 2 months i am getting: Headers, Ported T/B, and new plugs and wires.
Should I delete is and what is the outcome of it?
My mods are: lid, gears, and thats it.
But in the nexted 2 months i am getting: Headers, Ported T/B, and new plugs and wires.
Should I delete is and what is the outcome of it?
If you want any real power gain and your gas mileage good, then get a tune. I gained 11 hp after LT headers(with cats), then had the air/fuel dialed in with a wideband and gained another approx 22 hp on top of the 11. Also my car was super rich before tune.
Originally Posted by Intense
I am curious though what does torque management do? What will happen when i hit it?What difference will i feel.
i'm somewhat curious in this area too, i know for torque converters and such, they delete their torque managment, which I need done. But why? and are there any negative side effects to having it deleted?
kinda like... what is it's original purpose, that gm had it put in there.
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TECH Senior Member
Joined: Nov 2001
Posts: 7,036
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From: Lake Zurich, IL
Torque Management pulls timing just before and after a shift to prolong the life of the transmission. Removing it will crisp up the shifts (more noticable in a high stalled A4), but at the same time it's causing more power to go through the transmission during clutch engagement...
With any high mileage 4L60E I wouldn't take all of the TM out, just 50% or so tops...
With any high mileage 4L60E I wouldn't take all of the TM out, just 50% or so tops...
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Launching!
Joined: May 2003
Posts: 290
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From: Canadian West Coast
Exactly as horist says. If you've ever scanned your car and watched timing at the shift points, you can't help but see the downward spike. Removing it though is a trade off between between expected longetivity and performance. Personally I don't think the gain is there. The 4L60e as it is can barely handle things. I've still left mine stock.
I know the search is slow sometimes, but this one has been discussed a lot.
I know the search is slow sometimes, but this one has been discussed a lot.
^ ah, sorry i tried searching it a couple times and the only thing i found was recommendations on how much to take out and when. i won't do it until i have my stall put in, but i was wondering becuz i might have a high stall put in and not have any tq management removed right away... i hope my shift points will be fine and such won't need any adjustments
I have different tunes that I run in my car.. the DD tune has full trans TM as well as a little richer WOT fueling and other changes. I can for sure tell a difference because with NO TM the car hits the tires hard on the 1-2.. with it on it chirps the tires but nowhere near as hard. I'd just leave it as it is with the TM unless you have a good built trans or have the money to get a good built trans.
I know a lot of people remove all of the torque management and have no problems, but I have also heard of people that have cracked the transmission case because of the excess pressure. I had a mail order tune on my 94 Z with all the TM tuned out and the 1-2 shift was really violent, especially at normal driving speeds. Right now I am working with reducing TM by 40% with increased trans pressure 10% and reduced shift times 50%. I like the way it feels, a little chirp of the tires on the 1-2 shift at 20% throttle. I've tried about a dozen or more trans tunes to get where I am at with the proper upshifs and downshifts and TCC lockup. Just my .02. Good luck with your decision.
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From: San Diego
Originally Posted by Camaro ChriSS
They definitely do.
Originally Posted by GOaT Cheese
In what form specifically?
under certain conditions. Torque Management is performed for the
following reasons:
To prevent overstressing the power train components.
To prevent damage to the vehicle during certain abusive maneuvers.
To reduce engine speed when the IAC is out of the normal operating
range.
The PCM monitors the following sensors and engine parameters to
calculate engine output torque:
Air/Fuel ratio
Mass Air Flow
Manifold Absolute Pressure
Intake Air Temperature
Spark Advance
Engine Speed
Engine Coolant Temperature
A/C Clutch Status
The PCM monitors the torque converter status, the transmission gear
ratio, and the engine speed in order to determine if torque reduction
is required. The PCM retards the spark as appropriate to reduce
engine torque if torque reduction is required. The PCM also shuts
off the fuel to certain injectors to reduce the engine power in the
case of an abusive maneuver.
The following are instances when engine power reduction is likely to
be experienced:
During transmission upshifts and downshifts.
Heavy acceleration from a standing start.
The IAC is out of the normal operating range.
When the driver is performing harsh or abusive maneuvers such as
shifting into gear at high throttle angles or shifting the
transmission from reverse to drive to create a rocking motion.
The driver is unlikely to notice the torque management actions in the
first two instances. The engine power output will be moderate at
full throttle in the other two cases.
The PCM calculates the amount of spark retard necessary to reduce
engine power by the desired amount. The PCM disables the fuel
injectors for cylinders 1, 4, 6, and 7 in the case of an abusive
maneuver.
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TECH Enthusiast
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From: Orange County, CA
SO your saying dont remove it just reduce it? I am going to be adding headers here soon... Just trying to get a little more "power" from it. I want the car to be fast for an A4.
My specs are: 3.42's, and lid, the car has 42,000 miles on it and its a 00. What would you reduce it to?
My specs are: 3.42's, and lid, the car has 42,000 miles on it and its a 00. What would you reduce it to?
40% to 50% reduction should make you happy. If you to EFILive dot com, forums, in the transmission section is a tutorial on reducing torque management, which has been very informative and helpful to me.
