torque management
Race Director
Joined: Sep 1999
Posts: 12,434
Likes: 916
From: CONCORD NC
6-speeds have it too.
It is the PCM limiting power to protect the drivetrain. There are drivetrain specific limits (to protect componenets during shifts, etc), and there are rpm limits. These effectively limit the output of the engine, regardless of engine mods.
LS2edit easily tunes it out, or dials it back. I don't know if the other tuning software does so.
It is the PCM limiting power to protect the drivetrain. There are drivetrain specific limits (to protect componenets during shifts, etc), and there are rpm limits. These effectively limit the output of the engine, regardless of engine mods.
LS2edit easily tunes it out, or dials it back. I don't know if the other tuning software does so.
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
Originally Posted by sunsetZ51
ok, im new to this forum and ive seen a lot of talk about "torque management" i just want to know what it is and how to eliminate it. thanks.
There are some who seem to think it's a conspiracy theory - GM gives the car 400 horsepower, then takes it away when you least expect it
David Farmer (who I generally respect, btw) says it limits horsepower available unless it is turned off. But if you go back on the forum a year ago, before anyone knew how to turn it off (assuming it really is there), there were cars being modded with 100 rwhp more than stock.
Safety Car
Joined: May 2005
Posts: 3,990
Likes: 1
From: Corpus Christi Texas
I say wait and drive your car. If it feels fine and drives strong, wouldn't worry. If you have a car like mine that fell on its face during hard shifts with AH and TC off, maybe it needs some TLC from a tuner.
Racer
Joined: Jan 2005
Posts: 328
Likes: 2
From: springtown tx
Originally Posted by sunsetZ51
Well I work for GM so im gonna ask around and possibly give my buddy Ed Peper a call...ill get back to you hopefully with an official answer
Race Director
Joined: Sep 1999
Posts: 12,434
Likes: 916
From: CONCORD NC
jschindler, let me revise my post. I'm not saying it canlimit a car to 400hp at 5000rpm, but it can pull timing if you go above 400hp, cuttin perhaps 10-15hp from your car. If you're engine is capable of making 500HP, it might trim you back to 485 or so.
these are all hypothetical numbers/rpm. I don't know how aggressive the TM can be, but you can adjust the points at which it "kicks in".
btw, I appreciate the sort-of compliment
these are all hypothetical numbers/rpm. I don't know how aggressive the TM can be, but you can adjust the points at which it "kicks in".
btw, I appreciate the sort-of compliment
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Burning Brakes
Joined: Nov 2004
Posts: 1,031
Likes: 4
From: Crete IL
I don't think TM is limiting the car to 400HP. What it does, IMO, is limit the amount of power at certain ranges of the power curve only when certain situations exists that can stress the drivetrain more. Even then I believe it is just in small increments of time to smooth the application of shock the drivetrain takes. The peak torque and HP will still be there.
As an example someone does a real hard shift to second and they happen to be at 4500RPM after the shift the engine power may be cut back a little in a small increment of RPM and gradually bring back full power. Maybe there can be quite a few situations that trigger TM in an agressive 1/4 mile run that can increase 1/4 time by .1sec or so.
Assuming this is true, my opinion is why not just make the drivetrain strong enough instead of band aid fixes.
As an example someone does a real hard shift to second and they happen to be at 4500RPM after the shift the engine power may be cut back a little in a small increment of RPM and gradually bring back full power. Maybe there can be quite a few situations that trigger TM in an agressive 1/4 mile run that can increase 1/4 time by .1sec or so.
Assuming this is true, my opinion is why not just make the drivetrain strong enough instead of band aid fixes.
Team Owner
Joined: Jun 2001
Posts: 26,714
Likes: 344
From: Houston, TX
Originally Posted by davidfarmer
jschindler, let me revise my post. I'm not saying it canlimit a car to 400hp at 5000rpm, but it can pull timing if you go above 400hp, cuttin perhaps 10-15hp from your car. If you're engine is capable of making 500HP, it might trim you back to 485 or so.
these are all hypothetical numbers/rpm. I don't know how aggressive the TM can be, but you can adjust the points at which it "kicks in".
btw, I appreciate the sort-of compliment
these are all hypothetical numbers/rpm. I don't know how aggressive the TM can be, but you can adjust the points at which it "kicks in".
btw, I appreciate the sort-of compliment
And by the way, I agree with you. If you research my posts going back over a year on TM, I have always said that I believe that if the computer sees something it is not supposed to see (meaning something not designed for the engine, like a different cam etc) that I believed it might step in and go into a self preservation mode.
Good response!