Pulled trans out today to freshen up and install new +4C torque converter from Cirlce D. Bad *** looking converter and comes with new bolts, washers and even loctite... Took it easy coming home tonight from work, but what really impressed me was the stall felt like a factory torque converter in stop and go traffic. Will be at the track this weekend to feel and see the difference. Thanks Chris........

 

what does the 4c flash to?

 

I was told from 3800 to 4000. I will record some passes this weekend to see where?

 

congrats!
i want to see your truck, what happened to the PTC converter?
I went thru 7 of them with no luck at all, horrible CS.

 

This is great info, I'm leaning towards CirlceD. I want a converter that reacts normally under normal driving conditions but flashes to the advertised stall speed when you romp on it. Is that a 9.5" converter?

 

I never had a failure with the PTC's converter. I did not like the normal driving habits of the converter and the shift drop when racing.

The Circle D converter is 245mm in diameter which come out to 9.65".

 

I got the same stall. Mine flashes to 4000rpm and brake stalls to 3000-3100rpm