[Tom Goldman]

I would never run a spragless in a Class car .
I don't even run one in my Super Gas car .....I have run them in the past and have tested one with the latest stator technology recently back to back with my mechanical diode equipped converter .
obviously the starting line ,early run data was similar, but there is still too much loss down track ,and heat is still a major issue . ....Big concern ,especially since most Class cars don't run coolers.
A sprag is much stronger than the older type roller clutches ,but if you are still worried ,go with a mechanical diode. ....They are as close to unbreakable as you can get.
Talk to the guys at places like ATI ,Dynamic ,and Ultimate , they know Stock converters.