Myth Busters, Part 3

Part 3 in a four-part series on torque converter modifications

In parts 1 and 2 we looked at the results of chassis dyno testing conducted on torque converter modifications by Sean Boyle’s students in the automatic transmission course at Southern Illinois University. The testing was done on a MD-250 Mustang chassis dyno, and the test vehicle was a stock 2000 Dodge Durango RT equipped with a 5.9L gas engine and a 46RE transmission.

Converter “A” had a stator modification that lowered the stall of the converter. The vehicle responded favorably to this modification and consistently outperformed the stock 144K factor converter that was used for the base line of the evaluations. There were also no negative trade-offs with the modifications done to converter “A.” Converter “B” also had a stator modification, which raised the stall. The stock power plant of the test vehicle did not respond in a positive manner to this stator modification. The OEM converter consistently outperformed converter “B” throughout the dyno run and converter “B” had a negative trade-off with increased temperature.

To read the rest of this Technical Article on the Sonnax Website click here.

Article No.: TCTIP-07-07
Author: Ed Lee
Total Pages: 2

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