2005 c5 a4 torque management
07-20-2017, 01:52 PM
#1
2005 c5 a4 torque management
Recently started to tune my 05 a4 ported stock throttle body, ported stock intake manifold, 1 7/8 long tubes with 3 in x pipe and 08 npp mufflers. I wanted to start with tuning my trans so I started with reducing torque management I wanted to tune put 50% of the trans torque management. I multiplied the tm tables by 0.5 to reduce them and reduced the abuse mode table by 50% as well. My problem is after I write the tune to the pcm my next start service traction system is illuminated and displayed in my doc. This is what I follow in the way of reducing tm in the trans. What's causing the service traction system?
"In this final section we will deal with Torque Management, or TM as its called are settings that are on both the engine side of the tune and the trans side of the tune for A4s. M6 cars do not have trans side TM in the tune. For those that dont know TM is something GM added to the tune to dial back the engine timing during shifts and also add a shift time delay. This helps protect the trans from breakage but also makes for slow shifts and with timing being pulled and RWHP reduced because of it TM can put a serious hindrance on performance. Most modern vehicles have TM. For reference the stock torque rating for the 4L60E is 360 ft/lbs and 380 ft/lbs for the 65E. I personally dont recommend more than a 50% reduction of TM on a stock trans. Some people go further. 75% is fairly common and some even pull it out all together 100%. As far as a built trans, let it all hang out. Thats what they are for. On my trans I have it pulled out 100% since it is built to take the abuse. As far as how much YOU should pull out, well thats up to your personal preference. Do some research and be careful with your decisions. That being said lets get to it. In the "Transmission" section, find your way over to the "Torque Management" tab. Find the "Torque Reduction" area and there you'll find the "Torque Reduction vs Torque vs Shift" button or something along those lines. Unfortunately I dont remember what it says because 2.23 Beta has it listed as "Pattern X". This will be one of the main TM variables. There are a few others but this one makes the largest impact. Maybe someone can post up with what its called in 2.22 and I'll amend this write up. The pic below is from my stock tune:
Now the reason people say "-x%" is because these numbers are kind of arbitrary and dont really work out to be 1-100 in scale. So basically, looking at the 230 ft/lb area on the sixth box in for the 1>2 shift you'll see an 8. Obviously, a -50% reduction for that box would be 4. If you are going to do -50% then do it across the board. So, -50% on the first set of , 11, 20 would be 4, 5.5, 10...etc. Now as far as the 5.5 thing HPT wont let you enter that so I usually would round up so 4, 6, 10...etc. If you want to go -100% drop 0s in every box.
Next lets check out "Abuse Mode". This is something the tune will reference if it feels like its getting the Ike Turner treatment. Here we have " " and "Reduction Duration" buttons. Pop em open and lets see whats inside:"
"In this final section we will deal with Torque Management, or TM as its called are settings that are on both the engine side of the tune and the trans side of the tune for A4s. M6 cars do not have trans side TM in the tune. For those that dont know TM is something GM added to the tune to dial back the engine timing during shifts and also add a shift time delay. This helps protect the trans from breakage but also makes for slow shifts and with timing being pulled and RWHP reduced because of it TM can put a serious hindrance on performance. Most modern vehicles have TM. For reference the stock torque rating for the 4L60E is 360 ft/lbs and 380 ft/lbs for the 65E. I personally dont recommend more than a 50% reduction of TM on a stock trans. Some people go further. 75% is fairly common and some even pull it out all together 100%. As far as a built trans, let it all hang out. Thats what they are for. On my trans I have it pulled out 100% since it is built to take the abuse. As far as how much YOU should pull out, well thats up to your personal preference. Do some research and be careful with your decisions. That being said lets get to it. In the "Transmission" section, find your way over to the "Torque Management" tab. Find the "Torque Reduction" area and there you'll find the "Torque Reduction vs Torque vs Shift" button or something along those lines. Unfortunately I dont remember what it says because 2.23 Beta has it listed as "Pattern X". This will be one of the main TM variables. There are a few others but this one makes the largest impact. Maybe someone can post up with what its called in 2.22 and I'll amend this write up. The pic below is from my stock tune:
Now the reason people say "-x%" is because these numbers are kind of arbitrary and dont really work out to be 1-100 in scale. So basically, looking at the 230 ft/lb area on the sixth box in for the 1>2 shift you'll see an 8. Obviously, a -50% reduction for that box would be 4. If you are going to do -50% then do it across the board. So, -50% on the first set of , 11, 20 would be 4, 5.5, 10...etc. Now as far as the 5.5 thing HPT wont let you enter that so I usually would round up so 4, 6, 10...etc. If you want to go -100% drop 0s in every box.
Next lets check out "Abuse Mode". This is something the tune will reference if it feels like its getting the Ike Turner treatment. Here we have " " and "Reduction Duration" buttons. Pop em open and lets see whats inside:"
07-21-2017, 12:53 AM
#2
Le Mans Master
Member Since: Aug 2005
Location: CA.
Posts: 5,255
Likes: 0
Received 281 Likes
on
258 Posts
St. Jude Donor '13-'14-'15
On a C5 we delete ALL the TQ management by setting the values all to "0"- in every gear-as far as abuse mgmt goes same applies delete it ALL This will NOT hurt your trans at all in fact it will prevent the auto trans from slipping during shifts or having a slide shift or delayed shift--This will make your clutches live longer and prevent trans overheating and slipping and shift firmer-----
There are several other trans tuning tables that will make your A4 last longer and shift firmer---I have seen trans tuning on a bolt on C5 gain 2-4 tenths in the 1/4 mile times without even touching any of the engine tables----email me
There are several other trans tuning tables that will make your A4 last longer and shift firmer---I have seen trans tuning on a bolt on C5 gain 2-4 tenths in the 1/4 mile times without even touching any of the engine tables----email me
07-22-2017, 01:08 AM
#5
Le Mans Master
Member Since: Aug 2005
Location: CA.
Posts: 5,255
Likes: 0
Received 281 Likes
on
258 Posts
St. Jude Donor '13-'14-'15
The 2005 Corvette is a stand alone model----previous groupings were from 97-98 ( LS1A)
99-2004 is a LS1B The 2005 is an E40 and from 2006 to 2013 is an E38---
If your car is in fact an E40 then that changes everthing about trans tuning
97 to 2004 Corvettes have the eng tuning and the trans tuning all on one computer
from 2005 on up GM then added a separate computer for the trans--so you have an engine computer ECM and a trans computer a TCM---What exactly do you have ????
99-2004 is a LS1B The 2005 is an E40 and from 2006 to 2013 is an E38---
If your car is in fact an E40 then that changes everthing about trans tuning
97 to 2004 Corvettes have the eng tuning and the trans tuning all on one computer
from 2005 on up GM then added a separate computer for the trans--so you have an engine computer ECM and a trans computer a TCM---What exactly do you have ????
07-22-2017, 01:42 AM
#6
The 2005 Corvette is a stand alone model----previous groupings were from 97-98 ( LS1A)
99-2004 is a LS1B The 2005 is an E40 and from 2006 to 2013 is an E38---
If your car is in fact an E40 then that changes everthing about trans tuning
97 to 2004 Corvettes have the eng tuning and the trans tuning all on one computer
from 2005 on up GM then added a separate computer for the trans--so you have an engine computer ECM and a trans computer a TCM---What exactly do you have ????
99-2004 is a LS1B The 2005 is an E40 and from 2006 to 2013 is an E38---
If your car is in fact an E40 then that changes everthing about trans tuning
97 to 2004 Corvettes have the eng tuning and the trans tuning all on one computer
from 2005 on up GM then added a separate computer for the trans--so you have an engine computer ECM and a trans computer a TCM---What exactly do you have ????
2005 c6, a4(4l65e). E40 ecm and if i recall right it said T42 tcm.