What Everyone knows about Torque Management?

i am just wondering what everyone knows about T.M. like what it does? how bad is it if you remove it? and anything else you might know.

Torque Management
Torque management is a function of the PCM that reduces engine power under certain conditions. Torque management is performed for the following reasons:
To prevent over-stressing the powertrain and driveline 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 in order to calculate engine output torque:
The air/fuel ratio
The mass air flow (MAF ) sensor
The manifold absolute pressure sensor
The intake air temperature (IAT ) sensor
The spark advance
The engine speed
The engine coolant temperature (ECT ) sensor
The 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 output if torque reduction is required. The PCM also shuts OFF the fuel to certain injectors in order 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
During heavy acceleration from a standing start
When the clutch pedal is released too quick under a heavy load, 6.0L only
When one set of drive axles looses traction while the other set of drive axles are not moving, 4 Wheel Drive only and in 4WD low
If the IAC is out of the normal operating range, except 6.0L
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 2 instances. The engine power output is moderate at full throttle in the other cases.

The PCM calculates the amount of spark retard necessary to reduce the engine power by the desired amount. The PCM disables the fuel injectors for cylinders 1, 4, 6, and 7 in the case of an advasive maneuver


On a stock truck it probably isn't that big of a problem but when you get more power it becomes alot more noticable, at the same time when you get more power you actualy need it if you have a stock tranny.

my advice, if you plan on doing a significant number of mods to your truck just plan on a built tranny and then completely get rid of TM with tuning.

when you mean built tranny what do you mean? the whole thing tore apart and replaced with better parts. or a shift kit and better servos.

To reduce engine speed when the IAC is out of the normal operating range. what is IAC and i was wondering that the A/C clutch status has to do with TM

I just used the description of torque management that one of my friends had sent to me in an email a long time ago. The IAC is the idle air control. To my best understanding, this is what sends air through the throttle body when the throttle body is closed and the engine is idling. I would say that the reason torque management has to do something with the status of the clutch fan because when the clutch fan is on, the truck has a considerable loss of both hp and torque, so if it is engaged, torque management would not be needed due to the already decrease in hp and torque caused by the clutch fan being activated.

When you say i would get a built tanny the completly eliminate T.M. what do you consider a built tranny. and do you think it would be safe to eliminate T.M. with a shift kit and better servo. or just lower it. because with westers chip in their catagory for torque mangement they let you choose from leaving factory t.m., lowering t.m. or eliminating t.m. andi was thinking about lowering t.m.

I would consider a built tranny a performance tranny with beefed up internals. I know some guys like to take out all of the tm with a shift kit and servos, but I plan on just taking out most of it. If I ever upgrade to a performance tranny, I'm gonna get all of it removed. In your case, I would get the shift kit, servos, and have some of it removed. I just don't think a stock tranny will hold very long with all the tm removed. It just wasn't built for that, but with the firmer shifts, some would be fine to take out.

how much did it cost you to get your shift kit and servo put in

It's good to have friends. Stall, shift kit, servos, tranny cooler all for $250. :biggrin: I have heard that most people will charge at least $100 for the shift kit/servo. Don't quote me on that, but just check around. Shouldn't be much more than that at a local tranny shop.

It's good to have friends. Stall, shift kit, servos, tranny cooler all for $250. :biggrin: I have heard that most people will charge at least $100 for the shift kit/servo. Don't quote me on that, but just check around. Shouldn't be much more than that at a local tranny shop.

I guess so!!! i wish i lived by you, that way i could get in with your group of friends. they sure seem to know a lot about our trucks. i think that is what i am going to do. get the shift kit and a servo, then lower my torque management.

i think that is all i will be doing to my engine for a while. shift kit, servo, and get my pcm reprogrammed. its time for a new toy, Yamaha Banshee. i want to get my toys before it is time to got out into the realworld. because i guess that is what you do when you get out of college. plus i want to move away from Michigan. i want somewhere where it doesn't snow. that way i can sell my truck and get a 2wd. that way i can start out being faster.

some day i will have a better job and be cool like u guys, high school sucks

Do all trucks 99 and up have the Torque Management in them?

Do all trucks 99 and up have the Torque Management in them?

i think so. i guess we will have to wait for slow process. im sure he will know

Yeah, unfortunately, gm blessed all of the 99 up trucks with tm. It's a good thing to have if you use your truck for normal operations. If you've noticed, alot of the older gm trucks had a ton of problems with trannies. They put this in here to help solve some of these problems and to cover their own butts. But with a shift kit and servos, you eliminate most of these problems, which is mainly due to soft shifts that put excess wear on the tranny. With the shift kit/servos, you get firm shift points and the tranny locks in so much better. That is why you can take out most of the tm. I can't wait to get rid of my superchips and get a custom tune. I think I'm gonna buy ls1edit and tune myself. It's a pretty advanced program, but I have tons of local support, and I'm always upgrading something. The more horsepower you get, the more torque management seems to show its ugly head. And if I can get my hands on a good 6.0L, I want to be able to run the hell out of it without the torque management slowing me down.

That ls1edit sounds pretty awsome. I saw before where you said you have to have a laptop computer which is no problem for me, I'm a computer technician by trade and I personally think that being able to custom tune your own truck, whenever needed is neat. Would you suggest me looking into something like this? All I have is a Hypertech and my K&N intake should be here today. Or is it just better for me to keep what I have? I have adjusted my shift points and firmness with my Hyerptech. IS this in any way getting rid of any of the torque management?

i heard ls1 edit was sorta had to work well confusing. i have a hypertech and i got every gear to hold to 6000 rpms (well 1st and 2nd) 1st holds to like 48-50, 2nd holds to 85. 3rd i didn't even mess with never ran 3rd out. the fasted i have gone is 110. could go faster but not to sure with my stock tires. it seems to move pretty slow after 100.

now if i had that stall i have DREAMING about my truck would always be in the powerband. damn would it fly. to bad stalls are around like $700.

I got my stall, shift kit and tranny cooler from this place. http://www.texas-speed.com/

I paid about $629 for all the items. The tci 3000 is under $500. I think it was about $429. These guys were great to deal with and they shipped everything out to me pretty quick. I would recommend them to anyone.

I got my stall, shift kit and tranny cooler from this place. http://www.texas-speed.com/

I paid about $629 for all the items. The tci 3000 is under $500. I think it was about $429. These guys were great to deal with and they shipped everything out to me pretty quick. I would recommend them to anyone.

do you know any place that would have a tci or a yank 2600 stall for cheap?

hey slow process with your stall did you loose gas milage. because you said that when it shifts it puts your rpms into the powerband do they stay up there or do they drop when you are doing normal driving?

It really depends on your foot. While normal driving, it will still stall higher, but not by much. I really can't tell the difference in gas mileage while just cruising around.

im not sure i am getting what you are saying. like if i was driving at 55mph w/out a stall my rpms would at lets say 1800. would they still be at 1800 with a stall or would they be higher. how hard was it to put in? what excatly do you have to do?

If you're cruising at 55, the rpms will be the same with the stall. The stall works at acceleration. When you're on the gas, the shift points will stay higher during the acceleration. When you are at a cruising speed, the rpms will be down where they are normally. Basically the stall just determines how low the rpms drop on a hard acceleration. If you go with the 2600-2800, you'll hardly even know its there, until you get on it. Nothing to putting in the stall. Just requires dropping the tranny, sliding off the old converter, and installing the new one. A tranny shop can have it done fast. Now, the shift kit and servos, I have no idea about those. Had a very experienced friend do that for me.

do you know anywhere that sells yank tt2600 or the tt3000 for cheap i have only been able to find them for $650. and $750.

That's pretty much what everyone wants for the Yank. I would say it is probably the best that money can buy. There are several companies that make quality converters. I went with the tci 3000, and have been completely satisfied so far. For the price I gave($430), I threw in the transgo shift kit, and tranny cooler and still came out cheaper than just buying a Yank. Yank is well worth the money if you've got it to spend, but like I've said in previous post, gotta mod on a college budget.

That's pretty much what everyone wants for the Yank. I would say it is probably the best that money can buy. There are several companies that make quality converters. I went with the tci 3000, and have been completely satisfied so far. For the price I gave($430), I threw in the transgo shift kit, and tranny cooler and still came out cheaper than just buying a Yank. Yank is well worth the money if you've got it to spend, but like I've said in previous post, gotta mod on a college budget.

the only reason i was going with yank is that it has factory towing the 2600 and the 3000 does. i couldn't find a tci that can tow.

Yeah, in your case, I would go with the Yank. As you can see, I don't tow anything with my truck. I took off the bumper and the towing hitch. The Yank is worth the money for those people who actually use their truck for its intended purpose. I'll do some searching around and see what the best price I can find on these.

I found that tbyrnemotorsports is doing a group purchase on the Yank converters. You might want to email them and see what the discounted price is on them. Here is their website.

http://www.tbyrnemotorsports.com/

Do these aftermarket converters retain the lock-up?

im pretty sure they do