Drag Racing Tech
Sponsored by:
Sponsored by:

The perfect torque converter..

Thread Tools
 
Search this Thread
 
Old Jun 12, 2017 | 06:15 PM
  #1  
NewOrleansLT1's Avatar
Thread Starter
11 Second Club
15 Year Member
 
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Default The perfect torque converter..

Let's say for example a car makes peak torque at 4000rpm.. What would be the ideal converter? A 3600?, a 4000?, or a 4400? Basicly should you get a converter that flash lil before, at, or a lil past peak torque???
Reply
Old Jun 13, 2017 | 12:24 PM
  #2  
Nostang's Avatar
TECH Enthusiast
20 Year Member
iTrader: (4)
 
Joined: Oct 2003
Posts: 544
Likes: 3
From: Gilbert, AZ
Default

I have heard that you want the converter to stall about 1500 from your shift point and drop 800-1000 rpms between the shifts. I am guessing that the converter manufacturers are trying to get the most avg horsepower in the range the converter is working through. I would love to know the science on how the converter manufacturers can get a car to stall 1500 from your shift point and keep the rpms from dropping too much or not enough.
Reply
Old Jun 13, 2017 | 02:36 PM
  #3  
NewOrleansLT1's Avatar
Thread Starter
11 Second Club
15 Year Member
 
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Default

If that's the case then I would need about a 5000
Reply
Old Jun 13, 2017 | 02:43 PM
  #4  
nj02z's Avatar
TECH Enthusiast
10 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Jun 2012
Posts: 629
Likes: 26
From: nj
Default

I run a 5000 PTC 8" converter,shift at 6200. Car has been 1.399 60' making 398 rwhp. Make sure you get the "right" converter. Call a good converter company and take there advice.
Reply
Old Jun 13, 2017 | 03:39 PM
  #5  
Doug G's Avatar
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2010
Posts: 4,467
Likes: 193
From: Harford Co. Maryland
Default

Agree, get a custom built converter, not one of those off the shelf parts.
Reply
Old Jun 13, 2017 | 04:38 PM
  #6  
NewOrleansLT1's Avatar
Thread Starter
11 Second Club
15 Year Member
 
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Default

Originally Posted by nj02z
I run a 5000 PTC 8" converter,shift at 6200. Car has been 1.399 60' making 398 rwhp. Make sure you get the "right" converter. Call a good converter company and take there advice.
Wow we are very close power wise.. What do you car run in the 1/4? What rear gear? I 60ft a best of 1.50 with 3.73 and 4000 stall.. I know it can do better..
Reply
Old Jun 13, 2017 | 04:58 PM
  #7  
nj02z's Avatar
TECH Enthusiast
10 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Jun 2012
Posts: 629
Likes: 26
From: nj
Default

Originally Posted by NewOrleansLT1
Wow we are very close power wise.. What do you car run in the 1/4? What rear gear? I 60ft a best of 1.50 with 3.73 and 4000 stall.. I know it can do better..
10.72@ 127.99
3.89 rear 27x 11.5 QTP tire. The converter flashes 5020.
Reply
Old Jun 13, 2017 | 05:56 PM
  #8  
NewOrleansLT1's Avatar
Thread Starter
11 Second Club
15 Year Member
 
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Default

Originally Posted by nj02z
10.72@ 127.99
3.89 rear 27x 11.5 QTP tire. The converter flashes 5020.
With 398rwhp?? Wow, that's moving out..
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Jun 13, 2017 | 07:11 PM
  #9  
nj02z's Avatar
TECH Enthusiast
10 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Jun 2012
Posts: 629
Likes: 26
From: nj
Default

Originally Posted by NewOrleansLT1
With 398rwhp?? Wow, that's moving out..
Stock bottom end LS1 with TSP 233/239 cam and PRC stage 1 799 heads and TH350 with PTC 8" converter.
Reply
Old Jun 13, 2017 | 08:29 PM
  #10  
2002BLKWS6's Avatar
11 Second Club
iTrader: (10)
 
Joined: Mar 2005
Posts: 308
Likes: 0
From: Atlanta
Default

Originally Posted by nj02z
10.72@ 127.99
3.89 rear 27x 11.5 QTP tire. The converter flashes 5020.
That's Awesome! Whats your race weight?
Reply
Old Jun 14, 2017 | 04:39 AM
  #11  
nj02z's Avatar
TECH Enthusiast
10 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Jun 2012
Posts: 629
Likes: 26
From: nj
Default

3220 with me.
ME 175.
Reply




All times are GMT -5. The time now is 05:31 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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