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The Family II is a straight-4 piston engine that was originally developed by Opel in the 1970s, debuting in 1981. Available in a wide range of cubic capacities ranging from 1598 to 2405 cc, it simultaneously replaced the Opel CIH and Vauxhall Slant-4 engines, and was GM Europe's core mid-sized powerplant design for much of the 1980s, and provided the basis for the later Ecotec series of ...
The GM Family I is a straight-four piston engine that was developed by Opel, a former subsidiary of General Motors and now a subsidiary of PSA Group, to replace the Vauxhall OHV, Opel OHV and the smaller capacity Opel CIH engines for use on small to mid-range cars from Opel/Vauxhall.
The hot gas is at a higher pressure than the outside air and escapes from the engine through a propelling nozzle, which increases the speed of the gas. [ 2 ] Exhaust speed needs to be faster than the aircraft speed in order to produce thrust but an excessive speed difference wastes fuel (poor propulsive efficiency).
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The 521 was the facelifted version of 520, with a so-called "flat-deck" style. This meant a flattened bonnet and front fenders as well as a new grille design. [ 16 ] It used the Nissan J engines (the previously mentioned J13 or the larger J15, rated at 77 hp) and later had a 70 kW (94 hp; 95 PS) Nissan L16 engine, [ citation needed ] always ...
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The 289 cu in (4.7 L) V8 was introduced in April 1963, carrying the Challenger name over from the 260 [3] and replacing it as the base V8 for full-sized Fords. Bore was expanded to 4.00 in (101.6 mm), becoming the standard for most small block Ford engines. Stroke remained at 2.87 inches. Weight was 506 lb (230 kg).
The engine was intended to be used for big passenger cars and trucks; [2] it was installed in such (with minor, incremental changes) [3] until 1953, making the engine's 21-year production run for the U.S. consumer market longer than the 19-year run of the Ford Model T engine. [3] It was also built independently by Ford licensees. [citation needed].