TheHEMI.com

Okay, I admit I'm not an engineer either, so I can't really speak with any authority on the relative merits of either engine management system. From what I've read, you can change from speed/density to mass airflow with a new ECU and the proper feedback sensors, but with modern computers controlling...

The problem with the new Hemi is that the engine controller uses Speed/Density to control air and fuel and spark timing. Any changes in airflow (in or out) are basically ignored, and can actually reduce performance. The advantages of Speed/Density are better consistency in a variety of conditions, b...

Chrysler did a great deal of work with hemi head engines in WWII, but it wasn't until the early '50s that they applied their knowlege to automotive engines. In the meantime a hemi head was made to fit the flathead ford. These ArDun heads were designed at least in part by Zora Arkus Duntov at Ford. W...