Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

Why would a converter not lock on the dyno at WOT?

Thread Tools
 
Search this Thread
 
Old Nov 18, 2004 | 10:54 PM
  #1  
SSPEEDY's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Mar 2002
Posts: 535
Likes: 0
From: Chicago, IL
Default Why would a converter not lock on the dyno at WOT?

Had a stage 3 trans installed recently and retuned the car because of a ls6 intake. Anyway, the converter was removed and sent out to PI to be flushed and cut. After installing it in the new trans, the tuner said that he couldn't get it to lock at WOT on the dyno. This was with LS1 edit tuning. What could be wrong/is this normal?
Reply
Old Nov 19, 2004 | 05:28 PM
  #2  
SSPEEDY's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Mar 2002
Posts: 535
Likes: 0
From: Chicago, IL
Default

Someone must know, I'd like to at least find out before I drive the car anymore. I've only put about 60 miles on it since I picked it up and don't want to take a chance until I know what's going on.
Reply
Old Nov 19, 2004 | 08:32 PM
  #3  
red ws6 99's Avatar
TECH Fanatic
 
Joined: Nov 2001
Posts: 1,190
Likes: 0
From: Las Cruces, NM
Default

From the factory the torque converter does not lock at WOT. You can change the tables in the computer or add a switch to lock it up.

Gary
Reply
Old Nov 19, 2004 | 10:57 PM
  #4  
jimmyblue's Avatar
Moderator
iTrader: (11)
 
Joined: Mar 2002
Posts: 12,604
Likes: 7
From: East Central Florida
Default

Misfires will make it either unlock periodically or
not lock at all even if programmed to lock up.
Reply
Old Nov 20, 2004 | 10:16 AM
  #5  
1jfuddle's Avatar
Banned
iTrader: (7)
 
Joined: Jun 2003
Posts: 559
Likes: 0
Default

The clutch could be burnt and not fully engaging. There is one easy way to tell. There is a reason that converters come in a pretty pink and purple type colors. Take off the small round plate (less than 3/4") on the back of the bell housing. Find a way to get light inside so that you can see the back of the converter. See if it is still one solid color. If the clutch is burnt, like from locking it up, it will burn a black ring into the back of the converter.

Last edited by 1jfuddle; Aug 29, 2005 at 10:07 PM.
Reply
Old Nov 20, 2004 | 10:48 AM
  #6  
SSPEEDY's Avatar
Thread Starter
TECH Enthusiast
iTrader: (4)
 
Joined: Mar 2002
Posts: 535
Likes: 0
From: Chicago, IL
Default

I don't believe the converter is bad, I'm sure they would of told me. They send it to Precision Industries to be checked out. I'm sure if there was something wrong I would of been told but I'll call them Monday just to make sure.
It isn't a big deal about dyno numbers, I just want to make sure I don't end up damaging a new trans.
Reply




All times are GMT -5. The time now is 03:29 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE