Stall size - Pontiac G8 Forum: G8 Forums - G8Board.com
Drivetrain Tech 5L40 A5 / 6L80 A6 / TR6060 M6 / ZF Rear Diff

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post #1 of 22 (permalink) Old 06-10-2016, 11:54 AM Thread Starter
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Stall size

Anyone using a 3800-4k stall in their g8? I currently have a 3200 yank but I keep wanting a bigger stall.
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post #2 of 22 (permalink) Old 06-10-2016, 01:04 PM
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And here I was, asking a buddy just last night if he thought a 3200 too big. Is this going on a DD?

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post #3 of 22 (permalink) Old 06-10-2016, 02:52 PM Thread Starter
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And here I was, asking a buddy just last night if he thought a 3200 too big. Is this going on a DD?
Its not a DD, more of a weekend warrior. However, it could very easily be a DD. Most people don't even know its stalled.

My old Trans Am had a yank 3600ss and I always wanted to re-stall it to the 4000ss.
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post #4 of 22 (permalink) Old 06-10-2016, 09:14 PM
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And here I was, asking a buddy just last night if he thought a 3200 too big. Is this going on a DD?
I also have a 3200 and drive it pretty much daily. MPG didn't take that much of a hit and it doesn't really affect my normal driving style either.
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post #5 of 22 (permalink) Old 06-13-2016, 12:55 PM
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thanks for the info guys, I'll probably go with the 3200 then or slightly smaller if I find one.

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post #6 of 22 (permalink) Old 06-14-2016, 10:22 AM Thread Starter
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thanks for the info guys, I'll probably go with the 3200 then or slightly smaller if I find one.
go with the 3200 and you'll be happy.
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post #7 of 22 (permalink) Old 06-14-2016, 10:23 AM Thread Starter
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I'm really surprised nobody has info on larger stalls for the g8s.
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post #8 of 22 (permalink) Old 04-10-2019, 08:31 PM
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Any updates on guys with bigger stalls? Currently looking for more info on the bigger stalls
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post #9 of 22 (permalink) Old 04-11-2019, 09:25 AM
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I've dealt with MANY different stall speeds and converters in 6l80/90s. I wouldn't go any higher than a tight 3600, or a loose 3200. The biggest challenge I've seen for a DD 6l80/90 car is trying to keep the transmission cool enough to where it won't kill itself with high transmission temps. You can probably get away with a loose 3600 in a race car, but that's it. I would stay away from a loose 3600 or 4000 in a DD G8. You're going to lose reliability, and might lose trap speed if you don't buy a multi disk converter that you can lock up.

Keep your stalls at 2800-3200 in you daily driver 6l80/90. You'll be much happier. If you feel like you need more power down low, get some 3.29s, or a cam with a lower power curve.
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post #10 of 22 (permalink) Old 04-11-2019, 10:15 AM
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I've dealt with MANY different stall speeds and converters in 6l80/90s. I wouldn't go any higher than a tight 3600, or a loose 3200. The biggest challenge I've seen for a DD 6l80/90 car is trying to keep the transmission cool enough to where it won't kill itself with high transmission temps. You can probably get away with a loose 3600 in a race car, but that's it. I would stay away from a loose 3600 or 4000 in a DD G8. You're going to lose reliability, and might lose trap speed if you don't buy a multi disk converter that you can lock up.

Keep your stalls at 2800-3200 in you daily driver 6l80/90. You'll be much happier. If you feel like you need more power down low, get some 3.29s, or a cam with a lower power curve.
Ok thanks I have a small enough cam for the stock converter but you can tell it would be happier with a stall and I also have a 3.45 Camaro diff to put in. Still stay in the 2800-3200 range? I’m not to savvy on auto cars I’ve always had manuals so it’s pretty new to me.
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post #11 of 22 (permalink) Old 04-11-2019, 11:15 AM
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With the engine having a smaller cam, installing a higher stall is only going to shorten your power band. Unless you have a multi disk converter where you can lock it up, and extend your gear.

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Best e.t 10.41/ best mph 138.7 Half Mile: 168.3 mph
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post #12 of 22 (permalink) Old 04-11-2019, 12:24 PM
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With the engine having a smaller cam, installing a higher stall is only going to shorten your power band. Unless you have a multi disk converter where you can lock it up, and extend your gear.
Yeah that makes since I appreciate the info.
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post #13 of 22 (permalink) Old 04-14-2019, 09:50 PM
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I run a 4500 speed triple disc in the car. Temps stay under 200f. It's borderline not street able, but doable. It gets driven to work here and there but not a DD at all.

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post #14 of 22 (permalink) Old 04-15-2019, 08:33 PM
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I run a 4500 speed triple disc in the car. Temps stay under 200f. It's borderline not street able, but doable. It gets driven to work here and there but not a DD at all.

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Yeah mine is not a daily at all but I drive once or twice a week sometimes skip a week.
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post #15 of 22 (permalink) Old 04-22-2019, 02:20 PM
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I currently run a 278mm 3200 single, and spoke with Pat G, he recommended that I run 245mm 3600 multi disk. The car is cammed, ported heads and FBO. It's not a daily, but does get driven 3-4 times a week.
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post #16 of 22 (permalink) Old 04-22-2019, 08:52 PM
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I currently run a 278mm 3200 single, and spoke with Pat G, he recommended that I run 245mm 3600 multi disk. The car is cammed, ported heads and FBO. It's not a daily, but does get driven 3-4 times a week.
How do you like the stall that you have now? Did it make a big difference in track times?
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post #17 of 22 (permalink) Old 04-23-2019, 08:20 AM
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How do you like the stall that you have now? Did it make a big difference in track times?
The stall that I have currently (278mm) is ok, it does the job for now. I do get some erratic shifting at WOT, and have had numerous tunes to try and help the situation. When I took it to the dyno, they were having hard time also at WOT, it kept slipping, and they recommended a smaller diameter also just like Pat G. It did put down 440 to the wheels, but the shop said that the stall is holding me back a little. I have not had it to the track yet due to this situation. I am saving money currently for the 245mm multi disk. Hopefully this will help with a lot. Other than that, it's not a bad stall, just not for what I want to do. I want this thing at the track, and want to be consistent in the mid to low 11's.
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post #18 of 22 (permalink) Old 04-23-2019, 11:22 AM
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The stall that I have currently (278mm) is ok, it does the job for now. I do get some erratic shifting at WOT, and have had numerous tunes to try and help the situation. When I took it to the dyno, they were having hard time also at WOT, it kept slipping, and they recommended a smaller diameter also just like Pat G. It did put down 440 to the wheels, but the shop said that the stall is holding me back a little. I have not had it to the track yet due to this situation. I am saving money currently for the 245mm multi disk. Hopefully this will help with a lot. Other than that, it's not a bad stall, just not for what I want to do. I want this thing at the track, and want to be consistent in the mid to low 11's.
I gotcha makes since. There is a big difference in price for sure. I drive my car every once in a while and mostly to the track so I want something that will be consistent as well. Mine has similar mods to yours but I’m still on stock converter and you can tell it don’t like it. My best time at the track was a 8.02 1/8mile 1.9 60ft with my 20in street tires. I ordered rear drag set up wheels been on back order for a freakin month so just waiting on them to get back to the track. I also have a 3.45 Camaro diff I’m waiting to install. Hoping that the diff, wheels and tires, and a good stall will Wake it up at the track.
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post #19 of 22 (permalink) Old 04-27-2019, 10:33 PM
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I gotcha makes since. There is a big difference in price for sure. I drive my car every once in a while and mostly to the track so I want something that will be consistent as well. Mine has similar mods to yours but Iím still on stock converter and you can tell it donít like it. My best time at the track was a 8.02 1/8mile 1.9 60ft with my 20in street tires. I ordered rear drag set up wheels been on back order for a freakin month so just waiting on them to get back to the track. I also have a 3.45 Camaro diff Iím waiting to install. Hoping that the diff, wheels and tires, and a good stall will Wake it up at the track.
Stay away from the 278mm. Everyone I've spoken with has regretted that decision. I'd recommend Circle-D's 258mm single disk in your choice of stall. I've had great luck with their 258mm 2800-3000 single disk converter in my bolton car.

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post #20 of 22 (permalink) Old 04-28-2019, 04:58 PM
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Stay away from the 278mm. Everyone I've spoken with has regretted that decision. I'd recommend Circle-D's 258mm single disk in your choice of stall. I've had great luck with their 258mm 2800-3000 single disk converter in my bolton car.
How big of improvement did the stall you have make at the track?
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