disabling torque management harmful?
Thread Starter
Pro
Joined: Oct 2004
Posts: 514
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disabling torque management harmful?
I am getting ready to do some mods to my '40 A4, and it was advised by someone that disabling torque management would be harmful to the tranny...that it is there for protection.
Yet, I've read in other places that disabling torque management, and speeding up the shift times actually *improves* the longevity/durability of the tranny. My mods should put the engine at about 450hp at the flywheel.
I am wondering if I could get a definitive answer on tgransmission programming - whether it is harmful to the tranny or not.
Thanks in advance
greg (newbie vette owner, newbie forum poster)
Yet, I've read in other places that disabling torque management, and speeding up the shift times actually *improves* the longevity/durability of the tranny. My mods should put the engine at about 450hp at the flywheel.
I am wondering if I could get a definitive answer on tgransmission programming - whether it is harmful to the tranny or not.
Thanks in advance
greg (newbie vette owner, newbie forum poster)
Melting Slicks
Joined: Aug 2002
Posts: 2,324
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From: central NJ
your tranny isnt going to make it with 450hp whether you disable it or not. Deleting TQ managment will grenade your tranny even faster. Its there to begin with because the 4l60e can barley handle the power the stock vette puts out.
Team Owner
Joined: Aug 2003
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Originally Posted by C5JONNY
your tranny isnt going to make it with 450hp whether you disable it or not. Deleting TQ managment will grenade your tranny even faster. Its there to begin with because the 4l60e can barley handle the power the stock vette puts out.
Your stock 4L60E can barely handle whats on it's plate anyway. 450 RWHP will kill your stock tranny sooner rather than later if you beat on it.. If you are going to put down that much power, you'll need to have a built transmisssion anyway.
Burning Brakes
Joined: Apr 2003
Posts: 908
Likes: 4
From: TROY MI
Originally Posted by EB20003
Your stock 4L60E can barely handle whats on it's plate anyway. 450 RWHP will kill your stock tranny sooner rather than later if you beat on it.. If you are going to put down that much power, you'll need to have a built transmisssion anyway.
Team Owner
Joined: Feb 2001
Posts: 27,254
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From: Short Hills, NJ
Originally Posted by yankeevetteconvert
I think his post said 450HP at the engine.That will only give him 360 Hp at the rear(using a 20% driveline loss).That is still a lot of power for the A4 to handle but much more mangable than 450 HP.I would go with the stock trans and eliminate TM. When the trans goes and it will eventually you can have it rebuilt with parts that can handle the 360 HP.
Maybe doing a tranny cooler and new fluid, filter and gasket would help.
Thread Starter
Pro
Joined: Oct 2004
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Originally Posted by LS1LT1
I agree...the 4L60E is not that bad at all...it's a great automatic, very strong, smooth and performance oriented at least when behind a stock or mild bolt on motor so I think it can handle it if it's in good shape/lower miles.
Maybe doing a tranny cooler and new fluid, filter and gasket would help.
Maybe doing a tranny cooler and new fluid, filter and gasket would help.
I like the idea of postponing the inevitible with a cooler and new fluid. I've read (again, research through the internet) that some synthetic fluids can keep the temperature down by as much as 30 degrees.
Melting Slicks
Joined: Aug 2002
Posts: 2,324
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From: central NJ
23,000 miles and approximatey 35 1/4 mile passes and my tranny is smoked. I have a cam only package that dynos 355 to the wheels. sy3500 TC, and 3.73's also have a tranny cooler. Im currently about to start the rebuild.
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Safety Car
Joined: Oct 2000
Posts: 4,949
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From: Monticello MN
Originally Posted by greg_nate
Thanks for the good feedback. I looked at both of your profiles, and noticed that you both actually have A4s, with mods. I am wondering how long they lasted for you, and what kind of rebuild you did on them.
I like the idea of postponing the inevitible with a cooler and new fluid. I've read (again, research through the internet) that some synthetic fluids can keep the temperature down by as much as 30 degrees.
I like the idea of postponing the inevitible with a cooler and new fluid. I've read (again, research through the internet) that some synthetic fluids can keep the temperature down by as much as 30 degrees.
Ed
Melting Slicks
Joined: Aug 2002
Posts: 2,324
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From: central NJ
Originally Posted by C5XTASY
A good price on a tranny cooler for a C5 is about $900 for parts alone. I about fell over when I saw that. By the time you get done with the install, it may be worth just getting the A4 upgraded instead. Something to think about anyway.
Ed
Ed
no, my b&m tranny cooler was $50.00
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
disabling torque management harmful?
It's a risk we all take.
Last edited by Mike Mercury; Dec 10, 2004 at 10:35 AM.
Safety Car
Joined: Oct 2000
Posts: 4,949
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From: Monticello MN
Originally Posted by C5JONNY
no, my b&m tranny cooler was $50.00The tuners I talked to, and the FredBeans dealership, all quoted $900 for the parts. Of course this includes all stainlees lines, etc. They told me I probably wouldn't want to run rubber lines that distance. Who knows?
Ed
Team Owner
Joined: Aug 2003
Posts: 38,314
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I paid less than $100.00 for my Haden transmission cooler. Are you perhaps referring to the transmission cooler for the MN6 equipped cars?
http://www.gmpartsdirect.com/results...umber=12480080
http://www.gmpartsdirect.com/results...umber=12480080
Safety Car
Joined: Oct 2000
Posts: 4,949
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From: Monticello MN
Originally Posted by EB20003
I paid less than $100.00 for my Haden transmission cooler. Are you perhaps referring to the transmission cooler for the MN6 equipped cars?
http://www.gmpartsdirect.com/results...umber=12480080
http://www.gmpartsdirect.com/results...umber=12480080
I about picked myself up of the floor when the price was quoted. The tuners, and the parts fella from FredBeans, all knew I had an A4 though. On your Haden, are the lines rubber (or fabric) and are they in any danger of contacting anything? I've always been a believer in transmission coolers, but not at almost the cost of a new transmission. 
Thanks!
Ed
Burning Brakes
Joined: Apr 2003
Posts: 908
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From: TROY MI
Originally Posted by greg_nate
Thanks for the good feedback. I looked at both of your profiles, and noticed that you both actually have A4s, with mods. I am wondering how long they lasted for you, and what kind of rebuild you did on them.
I like the idea of postponing the inevitible with a cooler and new fluid. I've read (again, research through the internet) that some synthetic fluids can keep the temperature down by as much as 30 degrees.
I like the idea of postponing the inevitible with a cooler and new fluid. I've read (again, research through the internet) that some synthetic fluids can keep the temperature down by as much as 30 degrees.
Pro
Joined: Jan 2004
Posts: 749
Likes: 0
From: Las Cruces New Mexico
I've added a tranny cooler as well. 2800TC, 3.42 gears, 394RWHP, 361RWTQ - 35K miles but only about 4K since the serious power (H/C) and TC was added. The jury is still out if my stock A4 will hold up. About 15 passes down the 1/4 miles track with drag radials and so far so good. When it goes, and I fully expect it will, it will be a beefed up tranny and bye-bye to the torque mgt. system.
