Alright guys, I've decided to wait until I have both my cam and converter before i start throwing the cam in. What converters are the best for maintaining truck use? I daily drive it and tow here and there. Looking for duration to be high 220's or into the 230's, Martin's supposed to get back with me. I don't know crap about converters and stalls and what not. Truck weighs 6,800 pounds, 3.73 gears on 35's with a 4L80.

 

My recommendation: Go with a smaller cam.

 

****, I meant high teens to mid 220's, haha, I got the wrong numbers

 

What he said. Smaller cam. Low 220's will be plenty and be enough to carry over 6k RPM shift points easy with the right specs. It will also allow for a 3k stall which is really as big as I would ever go on such a heavy ride. Just normal accel you will be on the converter with anything looser.

 

and just find a 10" converter with a 3,000 stall? I've seen so many different ones out there!

 

10" generally are stronger because they are not a re-stalled factory piece. They also seem looser than the larger units.

Here's a basic breakdown. The stall speed varies based on the power you make. for instance I will stretch a converter a hell of a lot further than you will cam only. Weight of the vehicle plays a big role in that as well because you enable the engine to load the converter more as it takes more force to move the car. The diameter of a converter will have a huge effect on how "loose" id drives. for instance a 9.5" with a 3200 flash speed will drive drastically different than a 11" with a 3200 flash speed. being such a heavy vehicle I would get the largest diameter piece you can find thats around a 3000 flash speed. That means if you are buying new the circle D 265mm is a great option. If you are going budget and don't plan to do much more than a cam then the 278mm options will also work great. If you have big mods in mind down the road you could end up damaging a reworked factory piece so it may be worth ponying up now.

I would without a doubt go no smaller than a 258mm (10.5") in your truck. The converter I run may actually be a good fit.

 

Thanks for the help! I plan on going with a twin turbo setup eventually, but this is a couple years down the road. For now just a cam, bolt-on's, etc. everything BUT the turbos.

 

On Circle D's website the 278 "High Performance" converter doesn't have a "stall speed", I'd still be alright, right?

 

There should be a drop down. I believe they are 1A (2600-2800) and 2A (3000-3200)

 

CircleD also offers a 265mm multi disc for the 80e that will retain towing. I used the 278mm in my turbo truck and loved it , never towed with it though.