I've got a set of tri-y's waiting to be installed and I'm strongly thinking of doing the Circle D 278mm converter at the same time. If you have any videos of this converter, please share with me and let me know if you have a cam or not, I will be on stock cam.

Also, would this be a "wife friendly" stall? This is my DD but also a family hauler that the wife occasionally drives.

2011 Silverado Crew Cab 5.3, 6L80, 40k tru-cool, 4x4, 4.11 gears, stock cam

Thanks for any help.

 

For the 6l80e?

 

Yes, 6l80.
Circle D Specialties High Performance 278mm Torque Converter for GM 6L80 LS

 

I have one... not a circle D but a 3000 278mm. its also in the 4 speed. yes this is a very wife friendly converter.

I'll see if I can get a decent daily driving video for you.

 

I got mine installed last week and waiting on Justin at blackbear to adjust the tune for it so it's hard to say if I like it since I know it needs tuning. It definitely drives way different than a 278mm 4l80e or 4l60e and I've had both. I'm assuming it's due to no proper tuning yet..or maybe these 6l80e Trans are just different animals.

 

I had one in my truck and drove like stock when driving normal but when at wot you can tell the difference. Stall is perfect for a daily driver. Also have it for sale btw

 

I'm interested to know how it works out for you because we have basically the same truck, except the catback and 3.73 vs 4.11. I'm also blackbear autocal tune.

 

The biggest difference that I hate right now is during shifts at 5-10% throttle is the rpms fall during the shift way down then shoot right back up.. maybe the shift time can be increased or something.... it's kinda annoying lol

 

Any other Circle D 3000 278mm in a 6l80 experiences????

 

With proper tuning, it will drive very similar to stock under part throttle. Shift extensions will be a bit higher and it may take slightly more throttle to move from a dead stop, but otherwise, you won't even know the difference. The biggest difference you will notice is at WOT.