C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Can't launch A4 without bogging

Thread Tools
 
Search this Thread
 
Old Feb 17, 2012 | 06:41 PM
  #1  
Christian66LEO's Avatar
Christian66LEO
Thread Starter
Racer
 
Joined: Dec 2008
Posts: 332
Likes: 10
From: Upland Ca
Default Can't launch A4 without bogging

My car, 2000 c5 FRC, A4, 500+ rwhp, stroked with an A@A SC, just had a new transmission installed with a 2500 stall.

The stall is probably to small for most but my last 3200 stall i thought was bad as i had the same problems with it.

Starting from 15 mph or so i can roast my tires (Nitto Extreme 305/35zr18's) untill 3rd gear no problem. I have zero problems with the car after it gets going a bit besides traction.

The service act. handling, service trac. control is on always.

I bog down at take off's. I cant even power break above 1500 rpm (it bogs down) for a launch and that was with both stalls.

I removed the EBCM plug as I have read it helped others before but it didnt seem to help me.

Any help would be appreciated.
Reply
Old Feb 17, 2012 | 06:48 PM
  #2  
trainor's Avatar
trainor
Racer
 
Joined: Oct 2010
Posts: 474
Likes: 0
From: Bishop CA
Default

Originally Posted by Christian66LEO
My car, 2000 c5 FRC, A4, 500+ rwhp, stroked with an A@A SC, just had a new transmission installed with a 2500 stall.

The stall is probably to small for most but my last 3200 stall i thought was bad as i had the same problems with it.

Starting from 15 mph or so i can roast my tires (Nitto Extreme 305/35zr18's) untill 3rd gear no problem. I have zero problems with the car after it gets going a bit besides traction.

The service act. handling, service trac. control is on always.

I bog down at take off's. I cant even power break above 1500 rpm (it bogs down) for a launch and that was with both stalls.

I removed the EBCM plug as I have read it helped others before but it didnt seem to help me.

Any help would be appreciated.
Have you tried turning off the active handling. Mine bogs and a start if its on. Good Luck
Reply
Old Feb 17, 2012 | 06:53 PM
  #3  
Christian66LEO's Avatar
Christian66LEO
Thread Starter
Racer
 
Joined: Dec 2008
Posts: 332
Likes: 10
From: Upland Ca
Default

Yes it's off
Reply
Old Feb 17, 2012 | 07:30 PM
  #4  
Grimlock's Avatar
Grimlock
Drifting
10 Year Member
 
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
Default

Maybe the tune is way too rich at idle?
Reply
Old Feb 17, 2012 | 07:39 PM
  #5  
Christian66LEO's Avatar
Christian66LEO
Thread Starter
Racer
 
Joined: Dec 2008
Posts: 332
Likes: 10
From: Upland Ca
Default

I'm hoping it's something that simple as I didn't have it re tuned after the new transmission install.

I talked with the installer and he seems to think possibly a vacum problem?
Reply
Old Feb 17, 2012 | 07:42 PM
  #6  
Hauln1203's Avatar
Hauln1203
Instructor
10 Year Member
 
Joined: Nov 2006
Posts: 147
Likes: 1
From: Arena Wisconsin
Default

Sounds like your traction control may be malfunctioning, it may not be shutting off. I would also use a bigger converter.

Last edited by Hauln1203; Feb 17, 2012 at 07:47 PM. Reason: spell check
Reply
Old Feb 17, 2012 | 07:55 PM
  #7  
Christian66LEO's Avatar
Christian66LEO
Thread Starter
Racer
 
Joined: Dec 2008
Posts: 332
Likes: 10
From: Upland Ca
Default

I pulled the EBCM so I would assume the traction control is off plus after it get's going im spinning at will.

Grimlock, I just got off the phone with my Guy and he said it was possible and was going to talk with his tuner.

Last edited by Christian66LEO; Feb 17, 2012 at 07:58 PM.
Reply
Old Feb 18, 2012 | 07:14 AM
  #8  
dankhts's Avatar
dankhts
Safety Car
20 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: Jun 2004
Posts: 4,987
Likes: 394
From: Stoney Creek Ontario
Default

Originally Posted by Hauln1203
Sounds like your traction control may be malfunctioning, it may not be shutting off. I would also use a bigger converter.
mine behaved the same way after a bunch of mods and tunes the active handling wouldn't shut off, couldn't even do a burn out at the drag strip.....it would only turn off when in competition mode....couple changes with the HP Tuners re my trans programming and all was god again.....
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
Old Feb 18, 2012 | 10:45 AM
  #9  
MikeV's Avatar
MikeV
Drifting
20 Year Member
 
Joined: Jul 2001
Posts: 1,312
Likes: 2
From: Lake Havasu City AZ
Default

Here is a test.
Turn the TC off.
Put the trans in 3rd. Hold the brake and push down on the gas. If it wont spin the tires in place go to next text.
Put TC in Comp mode and try holding the brake and pushing down on the gas again. I bet it will spin!

I had same tuning problem.

Mike V
Reply
Old Feb 23, 2012 | 03:42 PM
  #10  
Christian66LEO's Avatar
Christian66LEO
Thread Starter
Racer
 
Joined: Dec 2008
Posts: 332
Likes: 10
From: Upland Ca
Default

Well I seem to have fixed it so far. I removed and cleaned the Chassis Ground connector G-101 found in another article (http://forums.corvetteforum.com/c5-t...tion-long.html) and so far it's working. Thanks for the help
Reply
Old Feb 24, 2012 | 10:25 AM
  #11  
ZMX's Avatar
ZMX
Advanced
10 Year Member
 
Joined: Jan 2011
Posts: 72
Likes: 1
Default

Originally Posted by Christian66LEO
Well I seem to have fixed it so far. I removed and cleaned the Chassis Ground connector G-101 found in another article (http://forums.corvetteforum.com/c5-t...tion-long.html) and so far it's working. Thanks for the help
Good deal. It's a pain for diagnosing when bad grounds make things behave strangely rather than not at all.
Reply
Old Feb 27, 2012 | 08:31 PM
  #12  
Bop Bop's Avatar
Bop Bop
Racer
 
Joined: Jun 2007
Posts: 266
Likes: 1
From: Mobile Al
Default

Thx, for the post. You solved some problems for me and saved me alot of money. Cheers.
Reply
Old Dec 18, 2014 | 09:18 AM
  #13  
pharestutt's Avatar
pharestutt
Instructor
10 Year Member
 
Joined: Nov 2010
Posts: 241
Likes: 0
Default

i have the same problem can anyone help
Reply

Get notified of new replies

To Can't launch A4 without bogging





All times are GMT -4. The time now is 08:43 AM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE