4l80e Torque Management
Thread Starter
Joined: Oct 2016
Posts: 1,584
Likes: 374
From: Armstrong BC
4l80e Torque Management I've been hearing this a bunch lately when tuning the transmission. It seems like a real he said she said topic. Is it a good idea to utilize TM if a guy has a built transmission??
Definitely would like to hear some opinions on this. If anybody has a link to a video or article on this would also be great. Thanks guys have fun
Definitely would like to hear some opinions on this. If anybody has a link to a video or article on this would also be great. Thanks guys have fun
TECH Junkie
Joined: Dec 2012
Posts: 3,614
Likes: 1,326
From: Iowa
What are you using the transmission for? Daily driver, towing, racing, etc
How many miles would you like to see out of the transmission
There's not a long list of reasons to eliminate torque management completely.
There are alot of reasons to leave it active.
How many miles would you like to see out of the transmission
There's not a long list of reasons to eliminate torque management completely.
There are alot of reasons to leave it active.
Thread Starter
Joined: Oct 2016
Posts: 1,584
Likes: 374
From: Armstrong BC
Engine and transmission are both controlled by a Holley Dominator. I do have some custom I/O setup with tables for TM
Thread Starter
Joined: Oct 2016
Posts: 1,584
Likes: 374
From: Armstrong BC
Hahaha okie dokie. I do have some custom I/O setup in the Holley EFI software for TM. I'm only just seeing that this is a thing. I haven't even glanced at it until now. If it'll prolong things then absolutely I'll implement that
TECH Addict
Joined: Dec 2004
Posts: 2,176
Likes: 626
From: Florida
i am referring to the torque management as GM calls it, which pulls timing on shifts to soften the hit on the internals of the transmission.
aftermarket ecus may be calling something else torque management. my haltech's 'torque management' is a drag racing launch system, so not relevant to what i said earlier
aftermarket ecus may be calling something else torque management. my haltech's 'torque management' is a drag racing launch system, so not relevant to what i said earlier
Thread Starter
Joined: Oct 2016
Posts: 1,584
Likes: 374
From: Armstrong BC
i am referring to the torque management as GM calls it, which pulls timing on shifts to soften the hit on the internals of the transmission.
aftermarket ecus may be calling something else torque management. my haltech's 'torque management' is a drag racing launch system, so not relevant to what i said earlier
aftermarket ecus may be calling something else torque management. my haltech's 'torque management' is a drag racing launch system, so not relevant to what i said earlier
Last edited by 91 Z28; May 16, 2024 at 10:46 PM.
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TECH Junkie
Joined: Dec 2012
Posts: 3,614
Likes: 1,326
From: Iowa
Torque management is a pretty neat system.
It basically takes your high hp engine, and for JUST a split second, turns it into a gutless turd while the shift occurs, then once the shift is complete, the engine is back to full power.
We can get into a lengthy discussion about apply rate, friction coefficients dynamic vs static, pressures, etc
But the gist is: Most of the wear and abuse happens during the shift itself.
So if you can make the shift happen at 200hp...then once the clutches are clamped give it back to 1000hp...it will live ALOT longer
And unless you're trying to really fight for E.T. at the drag strip...it's going to be inconsequential to how fast the car feels.
We're talking .050 seconds that some timing is pulled.
Trans will live longer and you won't hardly notice it's even happening if the tuning is done right.
It basically takes your high hp engine, and for JUST a split second, turns it into a gutless turd while the shift occurs, then once the shift is complete, the engine is back to full power.
We can get into a lengthy discussion about apply rate, friction coefficients dynamic vs static, pressures, etc
But the gist is: Most of the wear and abuse happens during the shift itself.
So if you can make the shift happen at 200hp...then once the clutches are clamped give it back to 1000hp...it will live ALOT longer
And unless you're trying to really fight for E.T. at the drag strip...it's going to be inconsequential to how fast the car feels.
We're talking .050 seconds that some timing is pulled.
Trans will live longer and you won't hardly notice it's even happening if the tuning is done right.
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Verdad Gallardo Thread Starter
Joined: Oct 2016
Posts: 1,584
Likes: 374
From: Armstrong BC
Torque management is a pretty neat system.
It basically takes your high hp engine, and for JUST a split second, turns it into a gutless turd while the shift occurs, then once the shift is complete, the engine is back to full power.
We can get into a lengthy discussion about apply rate, friction coefficients dynamic vs static, pressures, etc
But the gist is: Most of the wear and abuse happens during the shift itself.
So if you can make the shift happen at 200hp...then once the clutches are clamped give it back to 1000hp...it will live ALOT longer
And unless you're trying to really fight for E.T. at the drag strip...it's going to be inconsequential to how fast the car feels.
We're talking .050 seconds that some timing is pulled.
Trans will live longer and you won't hardly notice it's even happening if the tuning is done right.
It basically takes your high hp engine, and for JUST a split second, turns it into a gutless turd while the shift occurs, then once the shift is complete, the engine is back to full power.
We can get into a lengthy discussion about apply rate, friction coefficients dynamic vs static, pressures, etc
But the gist is: Most of the wear and abuse happens during the shift itself.
So if you can make the shift happen at 200hp...then once the clutches are clamped give it back to 1000hp...it will live ALOT longer
And unless you're trying to really fight for E.T. at the drag strip...it's going to be inconsequential to how fast the car feels.
We're talking .050 seconds that some timing is pulled.
Trans will live longer and you won't hardly notice it's even happening if the tuning is done right.