Porsche 944 (1982)
The Porsche 944 is a sports car manufactured by German automobile manufacturer Porsche from 1982 to 1991. A front-engine, rear-wheel drive mid-level model based on the 924 platform, the 944 was available in coupé or cabriolet body styles, with either naturally aspirated or turbocharged engines. With over 163,000 cars produced, the 944 was the most successful sports car in Porsche's history until the introductions of the Boxster and 997 Carrera.
Porsche introduced the 944 for the 1982 model year. It was slightly faster (despite having a poorer drag coefficient), was better equipped and more refined than the 924; it had better handling and stopping power, and was more comfortable to drive. The factory-claimed a 0–97 km/h (60 mph) acceleration time of less than 9 seconds (8.3 seconds according to "Porsche the Ultimate Guide" By Scott Faragher). The car had a nearly even front to rear weight distribution (50.7% front/49.3% rear) courtesy of the rear transaxle balancing out the engine in the front.
The new all-alloy 2,479 cc (2.5 L; 151.3 cu in) inline-four engine, with a bore of 100 mm (3.94 in) and stroke of 78.9 mm (3.11 in), was in essence, half of the 928's 5.0 L V8 engine, although very few parts were actually interchangeable. Not typical in luxury sports cars, the four-cylinder engine was chosen for fuel efficiency and size, because it had to be fitted from below on the Neckarsulm production line. To overcome roughness caused by the unbalanced secondary forces that are typical of inline four-cylinder engines, Porsche included two counter-rotating balance shafts running at twice the engine speed. Invented in 1904 by British engineer Frederick Lanchester, and further developed and patented in 1975 by Mitsubishi Motors, balance shafts carry eccentric weights which produce inertial forces that balance out the unbalanced secondary forces, making a four-cylinder engine feel as smooth as a six-cylinder engine.
Porsche 944 (1982)
The Porsche 944 is a sports car manufactured by German automobile manufacturer Porsche from 1982 to 1991. A front-engine, rear-wheel drive mid-level model based on the 924 platform, the 944 was available in coupé or cabriolet body styles, with either naturally aspirated or turbocharged engines. With over 163,000 cars produced, the 944 was the most successful sports car in Porsche's history until the introductions of the Boxster and 997 Carrera.
Porsche introduced the 944 for the 1982 model year. It was slightly faster (despite having a poorer drag coefficient), was better equipped and more refined than the 924; it had better handling and stopping power, and was more comfortable to drive. The factory-claimed a 0–97 km/h (60 mph) acceleration time of less than 9 seconds (8.3 seconds according to "Porsche the Ultimate Guide" By Scott Faragher). The car had a nearly even front to rear weight distribution (50.7% front/49.3% rear) courtesy of the rear transaxle balancing out the engine in the front.
The new all-alloy 2,479 cc (2.5 L; 151.3 cu in) inline-four engine, with a bore of 100 mm (3.94 in) and stroke of 78.9 mm (3.11 in), was in essence, half of the 928's 5.0 L V8 engine, although very few parts were actually interchangeable. Not typical in luxury sports cars, the four-cylinder engine was chosen for fuel efficiency and size, because it had to be fitted from below on the Neckarsulm production line. To overcome roughness caused by the unbalanced secondary forces that are typical of inline four-cylinder engines, Porsche included two counter-rotating balance shafts running at twice the engine speed. Invented in 1904 by British engineer Frederick Lanchester, and further developed and patented in 1975 by Mitsubishi Motors, balance shafts carry eccentric weights which produce inertial forces that balance out the unbalanced secondary forces, making a four-cylinder engine feel as smooth as a six-cylinder engine.