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V16 engine

A V16 engine is a sixteen-cylinder piston engine where two banks of eight cylinders are arranged in a V configuration around a common crankshaft. V16 engines are less common than engines with fewer cylinders, such as V8 and V12 engines. Each bank of a V16 engine can be thought of as a straight-eight, a design that can be inherently balanced. Most V16 engines have a 45° bank angle.

The first use of a V16 engine was in the 1910 Antoinette VII experimental aircraft, followed by several cars in the 1930s. Today, the most common applications for V16 engines are railroad locomotives, marine craft, and stationary power generators.

The first production car to use a V16 engine was the Cadillac V-16, introduced in January 1930. The Cadillac V16 engine was initially produced with a displacement of 452 cu in (7.4 L), OHV and a V-angle of 45 degrees. For the 1938 Series 90, the engine was revised to a displacement of 431 cu in (7,062.8 cm3), a flathead valvetrain and a V-angle of 135 degrees (the latter in order to achieve a lower cowl height). This 431 cu. in. version produced as much power as its immediate predecessor while being far less complex, had a stiffer crankshaft that aided durability and smoothness, and even had an external oil filter, a rarity for any car at any price in those days.

The Marmon Motor Car Company actually began development of a V16 engine in 1927 (earlier than Cadillac). Its development program took longer, however, and the Marmon Sixteen was released in 1931. This engine had a V-angle of 45 degrees, used pressed steel cylinder liners and was constructed mostly of aluminum. Only 400 Marmon Sixteens were produced between 1931 and 1933.

In 1991, the Cizeta-Moroder V16T began production, featuring a 16-cylinder engine in a unique configuration. Rather than a conventional V16 layout, the engine was actually two separate sets of transversely mounted V8 cylinders in a single block with gearing between the two sets providing a single output from the center of the engine to the transmission. Only a few cars were produced before the company ceased operations.

In June 2024, Bugatti unveiled the Tourbillon, the successor to the Chiron, marking a modern revival of the V16 configuration. The Tourbillon features an 8.3L (506 cu in) naturally aspirated V16 engine co-developed with Cosworth. Weighing just 252 kg in total–lighter than the naturally aspirated Aston Martin 6.0- litre V12-the engine incorporates titanium connecting rods and a carbon fibre inlet plenum to minimize weight. Paired with three electric motors, the hybrid system delivers a combined 1,800 horsepower, enabling the car to accelerate from 0 to 100 km/h in just 2.0 seconds.

The Peerless Motor Company developed a V16 engine in the early 1930s, yet just a single prototype was built before all automobile production ceased and the company converted its factory into a brewery following the end of Prohibition in the United States.

In the late 1980s, the BMW Goldfish V16 6.7 L (409 cu in) engine was developed, based on BMW's then-new V12 engine. Prototypes were fitted to a long-wheelbase 7 Series and then in the early 1990s to a Bentley Mulsanne.

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piston engine with 16 cylinders in vee configuration
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