stall converter
12 Second Club
Joined: Jul 2006
Posts: 372
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From: Goldsboro, NC
ZZperformance.com makes about any speed stall you can think of for a 4T65E which we have. But, with the 5.3 the stall speed is actually a pretty good set up. You don't want a much tighter stall because you would have no traction in the first gear area.
Tate
Tate
TECH Apprentice
Joined: Feb 2006
Posts: 359
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From: Ohio
You could try a stock 6 cylinder stall. They are a little smaller, giving a little higher stall, not sure on exact no.s though. GM usually has higher stalls on smaller motored vehicles vs the larger ones. I put a 4.3 liter stall im my old '94 caprice with an lt-1 and made a bit of a diff. Some people are putting 6 cylinder stalls in there Trailblazer SS's to raise the stall also. A gm stock tc is usually a little cheaper than an aftermarket also.
TECH Apprentice
Joined: Oct 2006
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I may not get all the terms correct but here goes.
A torque converter (TC) is used to get the power from the engine through the transmission to the drive line. It is between the engine and transmission. It operates in place of a clutch on a manual transmission. As the engine speed goes up, fluid is spun around inside causing the internal parts of the TC to eventually spin at about the same rate transferring the engine speed to the input of the transmission.
Stall speed is the point where the engine RPM is about the same as the input RPM of the transmission. Generally smaller diameter TC’s allow the engine to rev up higher (more torque) to get the car moving faster. If traction is lacking and is not improved increasing the stall will make things worse.
A torque converter (TC) is used to get the power from the engine through the transmission to the drive line. It is between the engine and transmission. It operates in place of a clutch on a manual transmission. As the engine speed goes up, fluid is spun around inside causing the internal parts of the TC to eventually spin at about the same rate transferring the engine speed to the input of the transmission.
Stall speed is the point where the engine RPM is about the same as the input RPM of the transmission. Generally smaller diameter TC’s allow the engine to rev up higher (more torque) to get the car moving faster. If traction is lacking and is not improved increasing the stall will make things worse.
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Just do 3.69 gears with 3" exhaust and get some stickier tires. I know that traction would be a problem but on the freeway our cars would be terrifying! F having a 2spd powerglide when going down the 1/4 mile. We should be toping 3rd at the end of the track.
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Teching In
Joined: Oct 2007
Posts: 7
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Here's a curveball. I think that the stall on our trannies is TOO HIGH! In city driving, the cars could achieve better fuel economy if they didn't have to rev to 2500-3000rpm to get any acceleration. If the converters locked in earlier, the rpms would be much lower, causing better mileage. The V8s have MORE than enough torque too. Any thoughts?
Here's a curveball. I think that the stall on our trannies is TOO HIGH! In city driving, the cars could achieve better fuel economy if they didn't have to rev to 2500-3000rpm to get any acceleration. If the converters locked in earlier, the rpms would be much lower, causing better mileage. The V8s have MORE than enough torque too. Any thoughts?
Just my take on this, the stocker is good where it is....
Teching In
Joined: Dec 2007
Posts: 26
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From: Downingtown, PA
A high stall TC in a FWD street car? 
Do they even put them in FWD drag cars?
Now, a tighter converter would be good, but I'm not sure that you're going to find a more efficient TC than what you get from the general. They've been experimenting with more efficient stators for a few years now. I got one in a 3900 stall 9" in my 96 Impala and it's very efficient. You'd hardly know it was a 3900 stall TC and it runs very high MPH to the ET in the 1/4.
Do they even put them in FWD drag cars?Now, a tighter converter would be good, but I'm not sure that you're going to find a more efficient TC than what you get from the general. They've been experimenting with more efficient stators for a few years now. I got one in a 3900 stall 9" in my 96 Impala and it's very efficient. You'd hardly know it was a 3900 stall TC and it runs very high MPH to the ET in the 1/4.
Teching In
Joined: Dec 2007
Posts: 26
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From: Downingtown, PA
The stock stall is most likely around 1800 or so and is certainly not loose. Likewise, I'd bet that DOD is rarely ever active when the TCC is unlocked. So the stall of the TC really isn't relevant to DOD.
****edit
A high stall TC is a great mod for real SOTP performance gains, in a RWD vehicle. It'll pin you back in the seat and get 4000+ pounds out of the hole in hurry, IF YOU HAVE TRACTION!!!. However, it's counter intuitive in a FWD street car where getting traction for a hard launch is a HUGE challenge. my $.02
Last edited by Glen Koenig; Jan 3, 2008 at 09:09 AM. Reason: clarification
TECH Fanatic
Joined: Jan 2007
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From: LITH, IL.
Who is we? Did you replace your TC?
The stock stall is most likely around 1800 or so and is certainly not loose. Likewise, I'd bet that DOD is rarely ever active when the TCC is unlocked. So the stall of the TC really isn't relevant to DOD.
****edit
A high stall TC is a great mod for real SOTP performance gains, in a RWD vehicle. It'll pin you back in the seat and get 4000+ pounds out of the hole in hurry, IF YOU HAVE TRACTION!!!. However, it's counter intuitive in a FWD street car where getting traction for a hard launch is a HUGE challenge. my $.02
The stock stall is most likely around 1800 or so and is certainly not loose. Likewise, I'd bet that DOD is rarely ever active when the TCC is unlocked. So the stall of the TC really isn't relevant to DOD.
****edit
A high stall TC is a great mod for real SOTP performance gains, in a RWD vehicle. It'll pin you back in the seat and get 4000+ pounds out of the hole in hurry, IF YOU HAVE TRACTION!!!. However, it's counter intuitive in a FWD street car where getting traction for a hard launch is a HUGE challenge. my $.02
TECH Enthusiast
Joined: Apr 2007
Posts: 697
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From: Hudson River Valley, NY
Who is we? Did you replace your TC?
The stock stall is most likely around 1800 or so and is certainly not loose. Likewise, I'd bet that DOD is rarely ever active when the TCC is unlocked. So the stall of the TC really isn't relevant to DOD.
****edit
A high stall TC is a great mod for real SOTP performance gains, in a RWD vehicle. It'll pin you back in the seat and get 4000+ pounds out of the hole in hurry, IF YOU HAVE TRACTION!!!. However, it's counter intuitive in a FWD street car where getting traction for a hard launch is a HUGE challenge. my $.02
The stock stall is most likely around 1800 or so and is certainly not loose. Likewise, I'd bet that DOD is rarely ever active when the TCC is unlocked. So the stall of the TC really isn't relevant to DOD.
****edit
A high stall TC is a great mod for real SOTP performance gains, in a RWD vehicle. It'll pin you back in the seat and get 4000+ pounds out of the hole in hurry, IF YOU HAVE TRACTION!!!. However, it's counter intuitive in a FWD street car where getting traction for a hard launch is a HUGE challenge. my $.02
hehe no I have not, and we as in cars with the LS4. Actually a '96 Monte Carlo 3100 has a 1800 RPM stall for the sake of trivia. DOD transition is noticable sometimes when cold. A time when the TCC is not engauged... It would defintealy be felt with a tighter converter
Just since I've had a bit of time to drive the car now, and I don't know how many of you have any experience with aftermarket stalled A4 f-body LS1 cars(i've had 3)
This thing drives tighter than my Yank TP4400
It's a bit tighter than my TCT 4000 nitrous converter
And the kicker, it drives EXACTLY like my Vigilante 3200 stall equipped stock long block '98 Z28 did. I mean to a "T". It's pretty badass, haha.
You guys would know better than me any factory ratings since I haven't read too much about 'em. But for real world, that's what it feels like
This thing drives tighter than my Yank TP4400
It's a bit tighter than my TCT 4000 nitrous converter
And the kicker, it drives EXACTLY like my Vigilante 3200 stall equipped stock long block '98 Z28 did. I mean to a "T". It's pretty badass, haha.
You guys would know better than me any factory ratings since I haven't read too much about 'em. But for real world, that's what it feels like