Torque Management?
02-23-2005, 03:06 PM
#1
Torque Management? I'm kind of new to the automatic world. I did a search and couldn't find a detailed description of what torque management really is. I plan to get the TransGo shift kit for my car. I was contemplating getting the TM deleted but was unsure what it is and what it does. I just saw that a lot of people ditch it. What is TM and what is to be gained and lost by deleting it? Thanks for any help.
02-23-2005, 03:25 PM
#3
The short answer is the pcm pulling timing...resulting in powerloss to help protect the drivtrain.This is what most have to deal with.This happens bigtime to auto cars especially.In say a wot run...looking at timing data on a car with TM,you'll se the time dip to -10 then come back up to normal..say 27/28* after the shift acomplete.When TM is deleted the timing will carry thru the shifts.
02-23-2005, 04:04 PM
#6
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It's more annoyance, than performance-killer, if you have
the rest of the trans controls set right. But it sucks, if your
shifts take 0.3 seconds to cycle and you're putting out no
power all the while; that's probably two tenths lost in the 1/4.
A smooth fast shift and just-enough TM is what I consider the
ideal setup. This has not a lot to do with shift kits although a
shift kit will probably improve the shift-cycle-time aspect.
So will reducing your shift adaptation time settings, possibly
(or not) needing some bump to the shift pressure as well. The
TM can be defeated by zeroing the torque reduction table
(the usual method), or by capping off the amount of timing it
can pull (my preference).
TM (try looking for that) will protect your trans from one
class of shock loading and it's worth keeping, if you can
train it right. But shooting it in the head, makes most
people happy enough. At least, until it's time for their
first "my tranny broke at mid-track and won't shift into
1st or 2nd anymore" post....
the rest of the trans controls set right. But it sucks, if your
shifts take 0.3 seconds to cycle and you're putting out no
power all the while; that's probably two tenths lost in the 1/4.
A smooth fast shift and just-enough TM is what I consider the
ideal setup. This has not a lot to do with shift kits although a
shift kit will probably improve the shift-cycle-time aspect.
So will reducing your shift adaptation time settings, possibly
(or not) needing some bump to the shift pressure as well. The
TM can be defeated by zeroing the torque reduction table
(the usual method), or by capping off the amount of timing it
can pull (my preference).
TM (try looking for that) will protect your trans from one
class of shock loading and it's worth keeping, if you can
train it right. But shooting it in the head, makes most
people happy enough. At least, until it's time for their
first "my tranny broke at mid-track and won't shift into
1st or 2nd anymore" post....
02-23-2005, 04:14 PM
#7
So the best option is to tune it then? I know what you are talking about with the hesitation. At the top of my RPM band when I was racing this weekend, I could feel the car start to fall off and then finally shift and pull off again. It is annoying, but I was still happy with 13.6. I just want to squeeze all I can out of it without hurting it.
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02-24-2005, 09:28 AM
#9
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Originally Posted by jimmyblue
It's more annoyance, than performance-killer, if you have
the rest of the trans controls set right. But it sucks, if your
shifts take 0.3 seconds to cycle and you're putting out no
power all the while; that's probably two tenths lost in the 1/4.
A smooth fast shift and just-enough TM is what I consider the
ideal setup. This has not a lot to do with shift kits although a
shift kit will probably improve the shift-cycle-time aspect.
So will reducing your shift adaptation time settings, possibly
(or not) needing some bump to the shift pressure as well. The
TM can be defeated by zeroing the torque reduction table
(the usual method), or by capping off the amount of timing it
can pull (my preference).
TM (try looking for that) will protect your trans from one
class of shock loading and it's worth keeping, if you can
train it right. But shooting it in the head, makes most
people happy enough. At least, until it's time for their
first "my tranny broke at mid-track and won't shift into
1st or 2nd anymore" post....
the rest of the trans controls set right. But it sucks, if your
shifts take 0.3 seconds to cycle and you're putting out no
power all the while; that's probably two tenths lost in the 1/4.
A smooth fast shift and just-enough TM is what I consider the
ideal setup. This has not a lot to do with shift kits although a
shift kit will probably improve the shift-cycle-time aspect.
So will reducing your shift adaptation time settings, possibly
(or not) needing some bump to the shift pressure as well. The
TM can be defeated by zeroing the torque reduction table
(the usual method), or by capping off the amount of timing it
can pull (my preference).
TM (try looking for that) will protect your trans from one
class of shock loading and it's worth keeping, if you can
train it right. But shooting it in the head, makes most
people happy enough. At least, until it's time for their
first "my tranny broke at mid-track and won't shift into
1st or 2nd anymore" post....