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

Trap Speed after torque converter change?

Thread Tools
 
Search this Thread
 
Old Jan 17, 2011 | 06:11 PM
  #1  
speedtigger's Avatar
Thread Starter
Old School Heavy
15 Year Member
Photogenic
Liked
Loved
iTrader: (16)
 
Joined: May 2010
Posts: 8,835
Likes: 84
From: Florida
Default Trap Speed after torque converter change?

Did your trap speed change after going to a stall converter? How much?

Last edited by speedtigger; Jan 17, 2011 at 07:39 PM.
Reply
Old Jan 17, 2011 | 09:21 PM
  #2  
cals400ex's Avatar
TECH Fanatic
iTrader: (27)
 
Joined: Apr 2007
Posts: 1,277
Likes: 2
From: Collinsville, IL
Default

my trap speed didn't move much but i dropped 8 tenths in the 1/4. i think mine was less than 1 mph faster with the stall if i remember correctly.
Reply
Old Jan 17, 2011 | 09:35 PM
  #3  
z99ls1's Avatar
Restricted User
iTrader: (12)
 
Joined: Feb 2010
Posts: 1,786
Likes: 0
From: kansas
Default

Originally Posted by cals400ex
my trap speed didn't move much but i dropped 8 tenths in the 1/4. i think mine was less than 1 mph faster with the stall if i remember correctly.
What stall did you put in?
Reply
Old Jan 17, 2011 | 09:46 PM
  #4  
a4ls2goat's Avatar
TECH Fanatic
 
Joined: Jul 2010
Posts: 1,678
Likes: 0
Default

my mph stayed the same...but went from 13.4 to 12.8
Reply
Old Jan 17, 2011 | 09:52 PM
  #5  
FreakishSpeed's Avatar
On The Tree
iTrader: (1)
 
Joined: Jan 2011
Posts: 149
Likes: 0
Default

stayed the same but went from 12.64 to 12.0
Reply
Old Jan 17, 2011 | 10:06 PM
  #6  
z99ls1's Avatar
Restricted User
iTrader: (12)
 
Joined: Feb 2010
Posts: 1,786
Likes: 0
From: kansas
Default

So why does the mph not go up I wonder? I figured with the light weight and the shift extension it would have to go up?
Reply
Old Jan 17, 2011 | 10:11 PM
  #7  
Atomic's Avatar
I need a gauge for that
iTrader: (37)
 
Joined: Jan 2006
Posts: 10,921
Likes: 3
From: Huntsville, AL
Default

Higher stall converters are technically less efficient than lower stall ones, which is why a lot of guys lock them in 3rd.
Reply
Old Jan 18, 2011 | 05:53 AM
  #8  
speedtigger's Avatar
Thread Starter
Old School Heavy
15 Year Member
Photogenic
Liked
Loved
iTrader: (16)
 
Joined: May 2010
Posts: 8,835
Likes: 84
From: Florida
Default

Wow. 6 tenths? I can see picking up 2-4 tenths in the 60', but I would have never guessed 6 tenths.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jan 18, 2011 | 11:04 AM
  #9  
thunderstruck507's Avatar
11 Second Club
iTrader: (18)
 
Joined: Mar 2008
Posts: 8,358
Likes: 27
From: Northwest AR
Default

Before: 8.3-8.4 @ 85-86mph, 2.0-2.1 60ft dead hooking on street tires

After: 7.85 (let off for bracket race or might have been 7.7)-7.9 @ 87-89mph, 1.79 60ft spinning some on 555r DR
Reply
Old Jan 18, 2011 | 11:12 AM
  #10  
speedtigger's Avatar
Thread Starter
Old School Heavy
15 Year Member
Photogenic
Liked
Loved
iTrader: (16)
 
Joined: May 2010
Posts: 8,835
Likes: 84
From: Florida
Default

Wow. I was not originally planning to buy a stall converter other than the small one that came with my transmission. But, after hearing these testimonials, I can't imagine leaving 6 tenths on the table. Nothing outside of nitrous can give you that much et for that money.
Reply
Old Jan 18, 2011 | 11:17 AM
  #11  
z99ls1's Avatar
Restricted User
iTrader: (12)
 
Joined: Feb 2010
Posts: 1,786
Likes: 0
From: kansas
Default

Originally Posted by speedtigger
Wow. I was not originally planning to buy a stall converter other than the small one that came with my transmission. But, after hearing these testimonials, I can't imagine leaving 6 tenths on the table. Nothing outside of nitrous can give you that much et for that money.
I have heard of people droping a full second with a 4000 stall. I still wanna hear more from people gaining mph though
Reply
Old Jan 18, 2011 | 12:02 PM
  #12  
thunderstruck507's Avatar
11 Second Club
iTrader: (18)
 
Joined: Mar 2008
Posts: 8,358
Likes: 27
From: Northwest AR
Default

Originally Posted by speedtigger
Wow. I was not originally planning to buy a stall converter other than the small one that came with my transmission. But, after hearing these testimonials, I can't imagine leaving 6 tenths on the table. Nothing outside of nitrous can give you that much et for that money.
I know right?

And yet everyday there are 3-4 threads on what cam to use for a stock stall...
:b ang:

~$700 minimum to do a cam right with everything for the baby cams 3-4 tenths (being generous I think), have an annoying to drive car, lope and run slow, etc

or $700 converter (mine was $450 used) and $30-50 cooler for .5-.8, launch harder, more fun to drive, not wear out brake pads in a couple months, etc and actually allow you to get a serious cam to make more power
Reply
Old Jan 18, 2011 | 12:17 PM
  #13  
z99ls1's Avatar
Restricted User
iTrader: (12)
 
Joined: Feb 2010
Posts: 1,786
Likes: 0
From: kansas
Default

Originally Posted by thunderstruck507
I know right?

And yet everyday there are 3-4 threads on what cam to use for a stock stall...
:b ang:

~$700 minimum to do a cam right with everything for the baby cams 3-4 tenths (being generous I think), have an annoying to drive car, lope and run slow, etc

or $700 converter (mine was $450 used) and $30-50 cooler for .5-.8, launch harder, more fun to drive, not wear out brake pads in a couple months, etc and actually allow you to get a serious cam to make more power
yep, I agree. A cam without a stall is just stupid
Reply
Old Jan 18, 2011 | 01:32 PM
  #14  
speedtigger's Avatar
Thread Starter
Old School Heavy
15 Year Member
Photogenic
Liked
Loved
iTrader: (16)
 
Joined: May 2010
Posts: 8,835
Likes: 84
From: Florida
Default

My only gripe about stall converters is the way they drive and sound around town.

There are all these posts on here about how their 3600 stall drives just like stock until you get on it. These claims are appearing to be slightly rosey eyed reports. I just went on YouTube and watched some of the videos of guys driving around town in their Yank converters and they sound just like the old slush box converters from back when I was racing. The videos I saw on youtube, you can barely even tell when the car shifts at part throttle. All the gears just run together in one long drone.
Reply
Old Jan 18, 2011 | 01:42 PM
  #15  
thunderstruck507's Avatar
11 Second Club
iTrader: (18)
 
Joined: Mar 2008
Posts: 8,358
Likes: 27
From: Northwest AR
Default

I would post up a video but until I get a box to hook up my speedometer it wouldn't do much good.

I have a Trans-Go kit in mine, and did before with the stock converter. At some rpms the shifts sound like they run together but I feel them plane as day.

Driving calm around town I stay under or around 2k rpm accelerating normal unless I'm on a hill, then I get around 2500-2600rpm. I don't consider that bad for a 3600 stall. Before the stall I would be at 1700-1800 for the same things and 2000-2200 for the hills. I was expecting a much larger gap than a couple hundred rpm, so I was pleasantly surprised with how the car drives. My buddy had a Vig 4000 and his wasn't as enjoyable in the least.

My car is also fairly quiet by most gearhead standards so I guess that helps too.

I wouldn't go back. I would drive a civic before I went back to a stock stalled auto...if I'm going to have a slow gutless turd I at least want 35mpg.
Reply
Old Jan 18, 2011 | 04:15 PM
  #16  
speedtigger's Avatar
Thread Starter
Old School Heavy
15 Year Member
Photogenic
Liked
Loved
iTrader: (16)
 
Joined: May 2010
Posts: 8,835
Likes: 84
From: Florida
Default

Post up a video anyway if you would. I will be able to tell by the sound of the engine what is going on.

I am looking at 3 companies right now. Circle D, PTC and Yank. Yank is all the rage on this site, but PTC seems to be the most popular on Yellow Bullet and TurboBuick.com. PTC is nearly 3 hundred bucks cheaper than Circle D and Yank and has every bit as good of a rep, but more in the serious race circles than the street guys.
Reply
Old Jan 18, 2011 | 10:06 PM
  #17  
cals400ex's Avatar
TECH Fanatic
iTrader: (27)
 
Joined: Apr 2007
Posts: 1,277
Likes: 2
From: Collinsville, IL
Default

Originally Posted by z99ls1
What stall did you put in?
i have a yank PT 3800 2.0 STR
Reply
Old Jan 18, 2011 | 10:38 PM
  #18  
skat's Avatar
On The Tree
iTrader: (3)
 
Joined: Dec 2009
Posts: 182
Likes: 0
From: Keystone Heights FL
Default

No MPH change here. First stall was 3,600 and did drive super close to stock.
Second stall is a 4,000. Does not drive like stock, about 2,000 RPM's to get moving good. But I like it alot more. My car picked up 6.4 tenths with the first stall change and another 2 tenths with the second stall. I pull 1.61 to 1.68 60's everytime.

My car had to lose 200 lbs (mostly the car but 50lbs was me) before it picked up MPH. I am still runing all stock motor just bolt-ons, tune, gears and my stall, car went 11.99 @ 112 last time out.

And I need to change my sig., numbers posted were on stock convertor. My car only put down 321rwhp and 325rwtq on the current stall.
Reply
Old Jan 18, 2011 | 10:50 PM
  #19  
z99ls1's Avatar
Restricted User
iTrader: (12)
 
Joined: Feb 2010
Posts: 1,786
Likes: 0
From: kansas
Default

You guys are making me lol. I wanted to gain a mph or 2
Reply
Old Jan 18, 2011 | 11:06 PM
  #20  
a4ls2goat's Avatar
TECH Fanatic
 
Joined: Jul 2010
Posts: 1,678
Likes: 0
Default

who cares about mph....as long as you run s good e.t.
Reply



All times are GMT -5. The time now is 09:26 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