Quote:
Originally Posted by Cobb
No one has mentioned it, but I was lead to believe by physics that the tc offers a 2 to 1 gear reduction and increase in twisting force/reduction in rpms for when the going gets tough?
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Torque converter design tries to reach an acceptable compromise of efficiency and torque multiplication. 2 :1 is about average for stall conditions of modern automotive converters -
see wikipedia At stall the efficiency goes to 0 as the output is at 0 rpm, but between stall and cruise the efficiency can be as high as 98% But for 3 element convertors like used in modern cars the maximum torque multiplication occurs at stall. Multiple element designs can have high power efficiency through most of the operating range - leading to very high torque multiplication at high rpm slip.
-mort