Torque Converters explained...maybe?

[Ultimate Converter Concepts]

Originally Posted by jmarkaudio

You need to add to the sprag/spragless that in most cases you will lose ET/MPH in the 1/4 with a spragless converter. When the turbine approaches close to the pump speed, the stator wants to unlock and can't. Reliability and consistency, spragless. Maximum performance in most cases, sprag or MD.

On the MD note,I am curious. Have you used any of the newer double element diodes and what reliability have you seen if so?

Hi, You are absolutely correct about the ET and MPH loss. The spragless will definately give it up in the quarter and build more heat. It is also a no-no for any type of street driving because of the heat build up. I will try to get my web guy to update if I can.

I have used some of the 10 element (paddle)diodes in some applications where I saw some abnormal wear on the 5 element(paddle) but these are in some pretty hi HP and Torque applications. Overall I have had pretty good luck with both types and have not experienced any catastrophic failure as of yet. (knock on wood). Thanks for your input.

[Jeff Stout]

Thanks for the info. I have a SS converter behind a SBC and now putting 250 of N2O on it and I already knew what was going to happen (increased starting line stall 900 rpm's) and is a 8 inch. So now I have a little more knowledge and will look into a 10 instead of trying to tighten the 8 inch to make work.
Jeff