porsche went to water cooled engines in 1998.
porsche went to water cooled engines in 1998.
when did porsche go to water cooled engines?
1998
although porsche changes the internal codes for its models, all 911 models were and are currently sold as a "911". the headings below use porsche's internal codes used to denote the revisions made to the 911.









































bullet::::- porsche 911 (1963–1989)









































bullet::::- porsche 930 turbo (1975–1989) a turbocharged version of the original 911









































bullet::::- porsche 964 (1989–1994)









































bullet::::- porsche 993 (1995–1998) the last air-cooled 911









































bullet::::- porsche 996 (1999–2004) all-new body and water-cooled engines









































bullet::::- porsche 997 (2005–2012)









































bullet::::- porsche 991 (2012–2019)









































bullet::::- porsche 992 (2019–)
porsche 911
most aviation piston engines are air-cooled. while water cooled engines were widely used from the early days of flight, air cooled engines were the dominant choice in aircraft. following the second world war, turbojets and jet turbine powered aircraft have come to dominate flight regimes where water cooled piston engines offered the advantage of reduced drag. today, piston engines are mostly used in slower general aviation aircraft where the greater drag produced by air cooled engines is not a major disadvantage. therefore, most aero engines produced today are of the air cooled variety. today, most of the engines currently (2005) manufactured by lycoming and continental and used by major manufacturers of light aircraft cirrus, cessna and so on.
air-cooled engine