Automatic Transmissions

Automatic transmissions have several strikes against them in the performance world. Not only do they slip and waste power, but if one shifts at the wrong time in a race, it can upset a car’s cornering balance. Consequently, you may be surprised to hear that there are more mods available for many automatic transmissions than for manual ones. Automatics are popular with drag racers because they can make shifts much faster than a manual transmission and have several beneficial effects from the torque converter, the fluid coupling that connects the engine to the transmission.

While there is a lot that can be done with the torque converter, most mods to an automatic transmission are either to make it more durable or to make ...

Get Do-It-Yourself High Performance Car Mods now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.