89 stock

i having to have my 700r4 transmission rebuilt. My question is should I use stock stall speed ( whatever that is ), or should I go with different stall speed

just street driven, no track racing. Just like any performance gain I can get

 

If you are serious but don't want to blow money, look for the 90's s10 replacement stall. The camaro and c4 guys used to use them. IIRC it takes it up to like 2600-2800? The car will wake up. I think they used to be like $120.

http://www.corvettefaq.com/c3/THE%20...%20Upgrade.htm

 

Go with an 85-86 Corvette converter if you can find a good one cheap. They stall at 2-2200 depending.
If you have a few bucks and want to get fancy get a TCI or Circle D say 3k stall.

 

Depending on what?
Early C4 700 factory TCs were 17-1800.

 

Go up to post #2. There is an attachment called a hyperlink, you push on that and the the attachment comes up. Read that and follow the codes listed (alphabetical) and then you will see a few GM torque converters and the stall ratings for them.

 

No, the 85-86 converter locks at 2026rpm. The drop in stall occurred in 87.

An L98 needs about 2000rpm stall when stock.

 

Stock is too small, even for a stock L98.

I believe if you are going to change, you'll be happier with it at 2000-2200 rpm. No higher and no lower.

 

If the stock converter is 1500 or there about ( not sure what stock really is ) will 2000 - 2200 make me feel a difference? Just asking cause I know little to nothing about this subject. How will change be during normal street driving

thanks everyone for the input

 

Stock is low, 1600rpm or so. It will feel faster off the line, that is really the only difference.

 

2200 will feel like a different car if your car is in good working order.

Okay, he we go. We all have opinions so lets break it down.

-Is price and or name brand an issue?
-Do you want the car to be a little snappy for your money or make it feel like a sports car?
-Do you car about numbers and calculations or about SOTP feeling?

If you want performance feels you need at least something that stalls at 2200-2500. I and possibly thousands of others have tried this stuff and stock stuff is too low. The Tpi will handle the rpm range fine. My first c4 had a stall with basically a stock motor and would take my Dad's basically stock 4+3 with the same gears, and he could drive that car until you get int eh mid 2,000 rpms.

In an auto stall matters.

For example in my current car I just went from a 2800 yank to a 3800 TCI. The Yank 2800 would blow the tires off at 1/2 throttle and merging at 70mph rolling in to it would spin the 275 tires not trying.

For me 3000 is what I need.

The 3800 is way too high of course (for my gears and street manners), but I wanted to try it and it was cheap.

I could have and should have made 2800 if I learned to handle it better and at the time did not have my 315's.

The torque was wild, now I have too much slip with 3800 it's like feather a clutch until you hammer it or it is in lock up.

I don't have a stock motor anymore, but you can see the difference. The engine wants to be spinning a little and pulling. Too high and it does not have the breathe to move it, too low and it bogs and dogs like a stock car.

Someone else can explain it better, but a ride in a car or even youtube videos showing stall changes helps.

 

I think I used one from a Buick Grand National and it is rated at a little over 2K.

I'm happy with it. Seems fine.

 

Sounds like I would be happy with 2200 stall speed. Finally found a shop I feel comfortable with, the price and upgrades are right, and they will haul my car on a flat bed to their shop included in the price

jusy for info, why did gm install such a low stall speed converter in the first place

 

There were different ranges. Most likely fuel economy among other things. This was when restrictions were high. Today it is different and they market bigger, more, faster, etc...

You won't regret 2200-2500 stall if it works right and you want a little more fun. Make sure you buy one with lock up, that is what you feel when the rpms drop like when you get on the highway.

 

You may choose it for transmission longevity, more stall = more heat = more failures.

Probably some driveability concern or something in their testing in all conditions came up too. A low RPM stall TC is hardly noticeable to a driver, if smooth running is the goal, then you might choose that.

 

I have an Edge torque converter, which has a slightly higher than stock stall speed. I don't like it because my car will not move if I'm on a slight upgrade and remove my foot from the brake.

 

Sorry my OEM converter stalled @1700+- and the books I researched showed the same when I was rebuilding the tranny.

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