Torque converters have been the subject of heated discussion in performance circles since their introduction. What stall is right for my car? What does diameter have to do with stall? Who makes the ...

We all like to go faster, but the path to lower e.t. 's isn't always through engine upgrades. There's performance to be found in the remainder of the drivetrain as well. Adding a higher-rpm stall ...

Beefing up your diesel pickup’s factory torque converter with a heavy-duty billet-style improves power, fuel economy and transmission durability — you can bank on it When it comes to towing, the ...

In today's performance world, adding power to your pushrod or modular engine has never been easier. With the advent and increased usage of power adders such as nitrous oxide, turbochargers, and both ...

An automatic transmission is kinda like a parent of a three-year-old child; it does everything for the driver. Want to reverse? Just move the shift lever to R. Want to drive? Put the lever in D, and ...

In our last episode (Mar. '10) we dyno tested a slew of bolt-ons and the new Precision Turbo (#PTB305-5857) on our Grand National test car. With these upgrades we anticipated possibly breaking into ...