Originally Posted by Cyril Baldwin
Here's another link that Mercedes Benz E Class uses the same Tornado principle in their engines. It states the following:
"Each cylinder is supplied with air through two inlet ducts. One of these is a spiral swirl port designed to generate a fast-moving swirl movement and the other a tangential port optimized to ensure effective filling and high output. The spiral swirl port whips up the air into a fast-moving swirl before it enters the cylinders, ensuring an optimum mixture of fuel and intake air under partial loads."
Here's the Press Kit report for Mercedes Benz:
http://wwwsg.daimlerchrysler.com/SD7...-67956,00.html
Would have to say I've never read an article that describes an engine as having "majestic output and torque" before...
Swirl port cylinder heads are nothing new and I remember them being on small-blocked Chevy's many years back. But its a totally different ballgame to get a tightly swirling airflow pattern on a large scale to happen in a relatively long-distanced intake system with multiple curves compared to getting that concept to work on small and individually designed cylinder intake ports...