iv done alot of reading and im still confused. can u put a stall on a daily driver that sometimes tows? and for example if i were to get a 2600 stall does that mean when my truck goes into overdrive it locks up at 2,600 rpm ? and if this is true thats y stalls hurt fuel milage?
.....if i were to do a drag race would u hold the brake and get the r's up to 2600 and then go ? or just stomp on it ? ( sry im stupid lol )

p.s 5.3 cc 2006 cai cat back ex. (want a cam )

 

Here is a easy take off with my 3700 rpm
And heres a WOT
01 sierra 0-60 and some - YouTube
When it locks up its just like a normal converter. And yes, torque converters hurt MPG. Stock I was getting about 14 city, Now Im getting about 10 city. And you can still tow with up to a 3k rpm torque converter. Get a larger trans cooler to help keep the trans temps in check.

 

Yes, you can put a converter in a truck that still tows occasionally. Just keep it reasonable, 3000 or less and get a good cooler. Tru Cool 40K is what I would get .

The stall will not affect lock up on the highway as far as I know. I believe it would settle down to the same rpm it does today for you. Stalls slightly hurt city mileage because the engine reaches higher rpm while accelerating, on the highway they make no difference.

When racing, you can either brake stall up the the stall speed, or mash the gas and it would flash up, either way would work.

 

I have a few questions as well, if I am wrong please correct me. Stall converters is something I really don't know much about.

Is the basic objective of a stall to put you more in the powerband of the engine during normal times?

Also I watched the video on the 0-60, when you shift it only drops to around 5000; is the stall converter a reason it does this?

 

Yup! you can get more of an RPM range when at part throttle, and RPMs stay higher during shifts

 

OP, for your truck with it being a daily driver and occasional towing I would suggest something around a 2500-2800 converter. Paired with something like a 212/218 camshaft or even a 220R camshaft it would still have a great powerband for ease of daily driving.

 

Our 278mm will be a nice fit for you. You can do it in a 2600 or a 3000 stall. If you tow over 5K then I would do the 2600. If it is only on occasion and under 5K, then I would do the 3000. And add a Tru-Cool 40K either way....

Chris

 

And I shift at 6800. But a converter will decrease the shift extensions. So for a stock converter will shift and drop to about 3600-3700. with a 3k rpm converter you will drop to about 4300-4400. It keeps you in the powerband longer.

 

Good info here, I am still reading up on stalls myself.

 

Definitely one of the best mods for an automatic vehicle.