Liquid-cooled engines are also quieter than their air-cooled counterparts. Water passages surround the combustion chamber and serve to dampen the mechanical noise.

Keith Hamersa bridges the gap in the air-cooled vs. water-cooled Porsche 911 debate, celebrating all generations of the iconic car. T he debate between air-cooled and water-cooled Porsche 911s has ...

Porsche’s 996-generation 911 hasn’t had the easiest of lives. When it was new some Porsche fans criticized the soap-bar styling, the switch from air- to water-cooled engines and the fact that ...

How air-cooled engines work, and why it doesn't matter any more The air-cooled engine was the stuff of legend, powering the Porsche 911 and VW Beetle (the real Beetle, not the ersatz New Beetle ...

The 911 was also the successor to the popular air-cooled 356. For over three decades, Porsche’s flagship 911 was built around an air-cooled engine. The two main reasons often provided for the shift ...

By 1983, emissions standards had changed, and there was a desire to switch over from air-cooled engines to water-cooled ones. The Type 1 engines could get by, but the larger Type 4 engines ended ...

This is why Porsche discontinued its air-cooled engines, in favor of water-cooled engines in the 1990s. Related. 10 Classic ...