If you’ve ever driven a vehicle equipped with an automatic transmission, chances are good you’ve been in command of a torque converter. At the risk of oversimplification, a torque converter transfers ...

The chart was chosen for its clarity. It represents a Detroit Diesel DD15 engine with a rating of 455 hp and 1,550 lb-ft. The engine is available in ratings from 400-505 hp and 1,550-1,750 lb-ft.

What is a torque converter besides a big round thing used with automatic transmissions that holds a lot of tranny fluid and makes a mess if you spill it? I wasn't sure either; maybe this is due to the ...