Straight-5
From Free net encyclopedia
The straight-5 or inline-5 is an internal combustion engine with five cylinders aligned in one row, sharing a single engine block and crankcase. This configuration is a compromise between the smaller straight-4 and the larger straight-6.
Straight-5 engines have been used rarely but continuously since their invention. In recent years they have become increasingly popular. They are used in Audis and on some diesel-powered Mercedes-Benz models, as well as on the Acura Vigor. Recently, General Motors launched a popular straight-5 engine for its truck line. The engine is part of its Atlas family that also includes 4- and 6-cylinder versions. Since the Volvo 850 was introduced in 1991, many Volvos make use of straight-5 engines, often turbocharged. It has also recently found an application in the Ford Focus ST. Volkswagen has also used straight-five engines in their Eurovan, and have recently developed a different straight-five engine which will be used in the next generation Jetta and Golf.
Automobile use
The smallest production straight-5 was found on the 1981 Audi 100, with 1921 cc of displacement. The Toyota 1PZ Diesel is the size champ at 3469 cc, though the aforementioned GM Atlas is close at 3464 cc.
Motorcycle use
The smallest straight-5 was found on the Racing motorcycle Honda 125/5.