Before we dive into the results that you already know because you’ve jumped ahead to the dyno curve, let’s take a look at what’s inside our ZZ502 base engine. The ZZ502 long block is based on GM’s Gen ...

Testing engines is like running a marathon. There are some spots where you're way behind, and there are others where you're pulling ahead. However, the race is almost never done. Last month was one of ...

Have you heard a twin-screw blower yet? There is nothing in the world like the giant slide-whistle scream of the new batch of positive-displacement superchargers for late-model engines. It's like ...