Racing torque converters are generally grouped by size (diameter) and stall speed. As the diameter of a torque converter decreases, the stall speed (RPM) goes up. Most factory torque converters are 12-13 inch in diameter and have a stall speed around 1600-1800 RPM. This promotes excellent fuel economy and drive-ability because they are specifically designed for these purposes. The problems arise when modifications are done to the fuel system, camshaft and other engine control systems. Smaller diameter converters are needed to provide more slip at idle. This allows engines with a lot of camshaft to idle better. As the torque converter and horsepower range is moved higher through the RPM range, the smaller torque converters with their higher stall speeds provide maximum torque multiplication where needed. Also the same torque converter will react differently when used behind different engines. So make your converter selection with the help of qualified personnel. Performance Automatic has endless converter combinations to make your car or truck perform at its utmost potential.
Since opening in 1984,Performance Automatic has worked hard to improve the Mustang's automatic transmission. There dedication to excellence and outstanding product warranty has made them one of the Industry leaders for Performance Automatic Transmissions. From perfromance AOD transmissions, valve body kits, shift kits, rebuild kits, torque converters, and oil pans, Latemodel Restoration has you covered!
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