Automatic slow off the line....
Thread Starter
Burning Brakes
Joined: May 2003
Posts: 990
Likes: 0
From: Germantown TN
Automatic slow off the line....
I was wondering if anyone else is having the same problem in their A4. When I put my foot to the floor from a dead stop it doesn't feel like the transmission kicks down the way it needs to. For example, my car really doesn't spin off the line at all and I have intake, exhaust, etc.
When I punch it from a roll such as 20 or so the car will light the tires up and move the way it is supposed to. Anyone else have this problem in theirs?
When I punch it from a roll such as 20 or so the car will light the tires up and move the way it is supposed to. Anyone else have this problem in theirs?
Le Mans Master
Joined: Apr 2006
Posts: 5,933
Likes: 13
From: The Beautiful Inland Empire WA.
Two things to address here......there is an "abuse mode" in the standard programming in the PCM. You likely need to have that programmed out to be really happy with what your car is going to do off the line -- especially with the traction control engaged.
Second.........what gears do you have? The standard 2.73's are indeed dogs off of the line.....even the optional factory 3.15's, depending on your tires and available grip will feel doggy off of the line without serious power braking.......get yourself some 3.42's or 3.73's (which I have) with a 3000 RPM stall converter and you will be entirely satisified with your off the line performance, I can assure you!
Second.........what gears do you have? The standard 2.73's are indeed dogs off of the line.....even the optional factory 3.15's, depending on your tires and available grip will feel doggy off of the line without serious power braking.......get yourself some 3.42's or 3.73's (which I have) with a 3000 RPM stall converter and you will be entirely satisified with your off the line performance, I can assure you!
Thread Starter
Burning Brakes
Joined: May 2003
Posts: 990
Likes: 0
From: Germantown TN
Two things to address here......there is an "abuse mode" in the standard programming in the PCM. You likely need to have that programmed out to be really happy with what your car is going to do off the line -- especially with the traction control engaged.
Second.........what gears do you have? The standard 2.73's are indeed dogs off of the line.....even the optional factory 3.15's, depending on your tires and available grip will feel doggy off of the line without serious power braking.......get yourself some 3.42's or 3.73's (which I have) with a 3000 RPM stall converter and you will be entirely satisified with your off the line performance, I can assure you!
Second.........what gears do you have? The standard 2.73's are indeed dogs off of the line.....even the optional factory 3.15's, depending on your tires and available grip will feel doggy off of the line without serious power braking.......get yourself some 3.42's or 3.73's (which I have) with a 3000 RPM stall converter and you will be entirely satisified with your off the line performance, I can assure you!
Yea, I've already gotten rid of torque management in my tune with HP. I always have traction control disengaged no matter what it's like outside. I do have the 2.73's which I figured were the culprit but from a 20mph roll punch the car feels mean and I just don't get it.
I'd like to throw a stall and gears in like I did my old trans am but these damn vettes are too hard and expensive to mess with the rear end and tranny.
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Not really that hard although it is a bit of work to do the swap. I did my wife's last week, putting in 3.42's, a 3200 stall and headers and it is a totally different car. It had the 2.73's and I couldn't get those out of there fast enough.
http://forums.corvetteforum.com/show....php?t=1753571
http://forums.corvetteforum.com/show....php?t=1753571
Last edited by Patches; Jul 15, 2007 at 08:23 PM.
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
Not really that hard although it is a bit of work to do the swap. I did my wife's week, putting in 3.42's, a 3200 stall ahnd headrs and it is a totally different car. It had the 2.73's and I couldn't get those out of there fast enough.
http://forums.corvetteforum.com/show....php?t=1753571
http://forums.corvetteforum.com/show....php?t=1753571
Mine really made a huge difference with the 3.42's and stall even over the 3.15's
Plus I just sold my 3.15's for $400.00 to cajunDude - you might check with him and see if he needs it still!
Thanks,Matt
7th Gear
Joined: Dec 2006
Posts: 7
Likes: 0
From: Ontario CA
You mentioned in your thread that you got rid of torque management in your tune with HP. Are you using a HP Tuner? I was thinking about getting a Preditor. A friend really likes HP for his truck. Why is it better for Vette? Also, mine is a 2004 C5. What year is yours and would ir be different in regards to tuning?
Le Mans Master
Joined: Jan 2001
Posts: 5,786
Likes: 6
From: Lafayette Colorado
Have you messed with the MAF table? In A4 the MAF tables plays a roll in calculating the line pressure for the tranny. If you have, then you will need to tweak the line pressure tables to get thing back to how they where. Be careful though, too much line pressure will fry the clutch packs!!!
Keith
Keith
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