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A V12 is an internal combustion engine with 12 cylinders in V configuration. Like a straight-6, this configuration has perfect primary and secondary balance no matter which V angle is used and therefore needs no balance shafts. A V12, with two banks of six cylinders angled at 60° from each other, has even firing with power pulses delivered twice as often per revolution as, and is much smoother than, a straight-6. This allows for great refinement in a luxury car; in a racing car, the rotating parts can be made much lighter and thus more responsive, since there is no need to use counterweights on the crankshaft as is needed in a 90° V8 and less need for the inertial mass in a flywheel to smooth out the power delivery. In a large, heavy-duty engine, a V12 can run slower than smaller engines, prolonging engine life. A colorized automobile engine The internal combustion engine is a heat engine in which combustion occurs in a confined space called a combustion chamber. ...
A piston and cylinder from a steam engine A cylinder in an internal combustion engine is the space within which a piston travels. ...
A V engine is a common configuration for an internal combustion engine in which the pistons are aligned so that, if viewed along the line of the crankshaft, they appear to be in a V. Usually, two opposing pistons share one crank on the crankshaft. ...
Engine configuration is an engineering term for the layout of the major components of an internal combustion engine. ...
The straight-6 (also inline 6, I-6, or I6) is an internal combustion engine with six cylinders aligned in a single row. ...
In piston engine engineering, a balance shaft is an eccentric weighted shaft which offsets the vibrations of unbalanced engines. ...
The straight-6 (also inline 6, I-6, or I6) is an internal combustion engine with six cylinders aligned in a single row. ...
Spoked flywheel A flywheel is a heavy rotating disk used as a repository for angular momentum. ...
Aviation
V12 engines were first seen in aircraft. By the end of World War I, the V12 configuration was a fairly popular one in the newest and largest fighters and bombers; V12 engines were produced by companies such as Renault and Sunbeam. Many Zeppelins had V12 engines, from German manufacturers Maybach and Daimler. Various US companies produced the V12 liberty engine; the Curtiss NC Flying boats, such as the first aircraft to make a transatlantic flight, the NC-4, had a set of 4 V12 engines. World War I was primarily a European conflict with many facets: immense human sacrifice, stalemate trench warfare, and the use of new, devastating weapons - tanks, aircraft, machine guns, and poison gas. ...
Renault S.A. is a French vehicle manufacturer producing small to upper-midsize cars, vans, buses and trucks. ...
Sunbeam was a marque used by John Marston Co. ...
LZ127 Graf Zeppelin, the most travelled airship in history A Zeppelin is a type of rigid airship (or dirigible) pioneered by Count Ferdinand von Zeppelin in the early 20th century based on an earlier design by David Schwarz. ...
Maybach-Motorenbau GmbH (founded by Wilhelm Maybach),pronounced my-bok and his son Karl Maybach, was a German manufacturer of engines for zeppelins and later large and luxurious automobiles. ...
Logo of Daimler 1898 Daimler car in Bristol Industrial Museum, England Daimler is a British marque of motor car since 1896 and is now a division of Jaguar Cars. ...
General characteristics Layout V-12 Cooling water Cylinders 12 Valve type Displacement 27 litres Rotation rate 1700 rpm Power 400 hp Power (300 kW Weight 383kg The Liberty L-12 was 27 litre water-cooled 45 degree V-12 aircraft engine of 400 horsepower (300 kW). ...
The Curtiss NC (Navy Curtiss, nicknamed Nancy boat or Nancy) was a flying boat used by the United States Navy from 1918 through the early 1920s. ...
Boeing 314 A flying boat is an aircraft that is designed to take off and land on water, in particular a type of seaplane which uses its fuselage as a floating hull (instead of pontoons mounted below the fuselage). ...
For the similarly named rock band, see TransAtlantic. ...
The NC-4 was the first aircraft to fly across the Atlantic Ocean. ...
A number of World War II fighters and bombers used V12 engines such as the Rolls-Royce Merlin or the Allison V-1710 on the Allied side or the Daimler-Benz DB 600 on the German side, these engines were generating about 1,000 horsepower (0.75 MW) at the beginning of the War and about 1,500 horsepower (1.12 MW) at their ultimate evolution stage. The German DB 605D engine even reached 2000 hp (1.50 MW) with methanol-water injection. Their use disappeared quickly after the advent of the jet engine. This is the current Improvement Drive collaboration! World War II was a truly global conflict with many facets: immense human suffering, fierce indoctrination, and the use of new, extremely devastating weapons such as the atomic bomb. ...
A fighter aircraft is a military aircraft designed primarily for attacking other aircraft, as opposed to a bomber, which is designed to attack ground targets, primarily by dropping bombs. ...
A bomber is a military aircraft designed to attack ground targets, primarily by dropping bombs. ...
The Rolls Royce logo Rolls-Royce is a set of several companies, all deriving from the British automobile and aero-engine manufacturing company founded by Henry Royce and C.S. Rolls in 1906. ...
The Merlin was a 12 cylinder, 60° V, 27 litre, liquid cooled piston aircraft engine built during World War II by Rolls-Royce. ...
The V-1710 aircraft engine was the only indigenous US developed liquid-cooled engine to see service during WWII. Known as a sturdy and trustworthy design, it nevertheless was overlooked in a number of applications due to problems with the supercharging. ...
Daimler-Benz AG was founded on May 1, 1924 by the merger of Benz & Cie. ...
The horsepower (hp) is the name of several non-metric units of power. ...
A Pratt and Whitney turbofan engine for the F-15 Eagle is tested at Robins Air Force Base, Georgia, USA. The tunnel behind the engine muffles noise and allows exhaust to escape. ...
V12 road cars In automobiles, V12 engines have never been common, because of their complexity and thus cost. Their use has been thus confined to costly luxury and sports cars, in which they give superlative performance and smoothness characteristics. Image File history File links Download high resolution version (2272x1704, 491 KB) 1961 Ferrari 250 TR 61 Spyder Fantuzzi 250 Colombo Testa Rossa engine From the Ralph Lauren collection on display at the Boston Museum of Fine Arts. ...
Image File history File links Download high resolution version (2272x1704, 491 KB) 1961 Ferrari 250 TR 61 Spyder Fantuzzi 250 Colombo Testa Rossa engine From the Ralph Lauren collection on display at the Boston Museum of Fine Arts. ...
Ferraris earliest cars used engines designed by Gioacchino Colombo, who had formerly designed Alfa Romeos for Enzo Ferrari. ...
1958 250 Testa Rossa from the Ralph Lauren collection 1961 250 TR Spyder Fantuzzi Serenissima version from the Ralph Lauren collection One of Ferraris most famous racing models was the 250 Testa Rossa of the 1950s and early 1960s. ...
Car redirects here. ...
Prior to World War II, twelve-cylinder engines were found in many luxury models, including cars from Cadillac, Packard, Lincoln, Franklin, Rolls-Royce, and Hispano-Suiza. Packard's 1912 "Double Six" is widely regarded as the first production V12 engine. This is the current Improvement Drive collaboration! World War II was a truly global conflict with many facets: immense human suffering, fierce indoctrination, and the use of new, extremely devastating weapons such as the atomic bomb. ...
Cadillac is a brand of luxury automobile, part of the General Motors corporation, produced and mostly sold in the USA; outside of North America, they have been less successful. ...
Packard Cormorant hood ornament from a 1941 180 Formal Sedan Packard was a United States based brand of automobile originally known as the Ohio Automobile Co. ...
Lincoln is an American luxury automobile brand, operated under the Ford Motor Company. ...
The H. H. Franklin Manufacturing Company was a maker of automobiles in the United States between 1902 and 1934 in Syracuse, New York. ...
The Rolls Royce logo Rolls-Royce is a set of several companies, all deriving from the British automobile and aero-engine manufacturing company founded by Henry Royce and C.S. Rolls in 1906. ...
Hispano-Suiza is a French engineering firm best known for their engine and weapon designs in the pre-World War II period, work that developed out of their earliest work in luxury automobile design. ...
1912 (MCMXII) was a leap year starting on Monday. ...
This page lists superlatives of the automobile industry - that is, the smallest, largest, fastest, lightest, best-selling, and other such topics. ...
Postwar, the type lost favor in the United States, where the V8 became ubiquitous. Italian sports cars from such makers as Lamborghini and Ferrari used the V12 almost exclusively on their highest-performance vehicles, while Jaguar developed a V12 that was put into production in 1971 and lasted until 1997. Ferrari's newest V12 (used in the 456) is an odd 65° unit based on the Ferrari Dino V6, while the company's flat 12 engine is really a 180° V12. The Liberty V8 aircraft engine clearly shows the configuration A V8 engine is a V engine with eight cylinders. ...
Lamborghini logo 2004 Lamborghini Gallardo 2004 Lamborghini Murciélago Roadster Automobili Lamborghini S.p. ...
The Ferrari Gestione Industriale badge on the front of a 330 GTC Ferrari is an Italian manufacturer of high end race cars and high-performance sports cars formed by Enzo Ferrari in 1929. ...
Jaguar Cars is a British based subsidiary of the American Ford Motor Company famous for luxury saloon and sports cars. ...
Jaguars V12 was one of the premiere powerplants of the 1970s and 1980s. ...
1971 (MCMLXXI) is a common year starting on Friday (click for link to calendar). ...
1997 (MCMXCVII) is a common year starting on Wednesday of the Gregorian calendar. ...
The Ferrari 456 and 456M is a high-performance Ferrari front-engined grand tourer. ...
The Dino by Ferrari (also called the 206, 246, and 308GT4) was a mid-engined, rear-drive sports car produced from 1968 to 1973. ...
The Ford Essex V6 engine A V6 is an internal combustion piston engine with six cylinders in a V configuration. ...
In the early 1990s, the German manufacturers Mercedes-Benz and BMW both introduced V12 designs. The BMW-designed V12 also appears in Rolls-Royce cars, while the Mercedes engine is also seen in Maybach cars. Aston Martin introduced a V12 model in 2001, while Cadillac is re-introducing the V12 after 60 years with a V12 version of their Cadillac Northstar engine range. This engine is to be available initially only in the Cadillac Escalade luxury SUV. The 1990s refers to the years 1990 to 1999; the last decade of the 20th Century, but in an economical sense The Nineties is often considered to span from the fall of the Berlin Wall in November 1989 to the September 11 attacks in 2001. ...
This page is about the Mercedes-Benz brand of automobiles and trucks from the DaimlerChrysler automobile manufacturer. ...
BMW AG (an abbreviation for Bayerische Motoren Werke AG, or in English, Bavarian Motor Works), is a German company and manufacturer of automobiles and motorcycles. ...
The Rolls Royce logo Rolls-Royce is a set of several companies, all deriving from the British automobile and aero-engine manufacturing company founded by Henry Royce and C.S. Rolls in 1906. ...
Maybach-Motorenbau GmbH (founded by Wilhelm Maybach),pronounced my-bok and his son Karl Maybach, was a German manufacturer of engines for zeppelins and later large and luxurious automobiles. ...
official Aston Martin logo (since 2003) Aston Martin logo (1987 - 2002) Aston Martin Lagonda Ltd. ...
2001: A Space Odyssey. ...
Northstar is Cadillacs name for its DOHC V8 engine. ...
2003 Cadillac Escalade EXT Wikimedia Commons has more media related to: Cadillac Escalade The Escalade is a large sport utility vehicle (or SUV) sold by the General Motors luxury brand, Cadillac. ...
A sport utility vehicle (SUV) or off-roader is a vehicle that combines the load-hauling and passenger-carrying capacity of a large station wagon or minivan with features designed for off-road driving. ...
Toyota equipped their Century Limousine with their own 5.0 L DOHC V12 engine, designated the 1GZ-FE. Toyota redirects here. ...
TVR made and tested a 7.7 L V12 called the Speed Twelve, reportedly making 1000+ BHP naturally aspirated, but the project was scrapped after the car it was designed for was deemed too powerful for practical use. TVRs logo TVR 280i TVR S series 1986 TVR 350i 1986 TVR Chimaera TVR Cerbera TVR is a manufacturer of sports cars, located in Blackpool, North West England. ...
The Speed Twelve is the name of a V12 engine manufactured by TVR and used in several of their cars incuding the TVR Speed 12 and TVR Cerbera Speed 12. ...
A List of Postwar V12 Production Road Cars (Alphabetical by make, sub-sorted by year of introduction): Sport-utilities: The Aston Martin V12 Vanquish is a supercar manufactured by Aston Martin since 2001. ...
DB7 rear DB7 The Aston Martin DB7 was an automobile made by Aston Martin from September 1994 to December 2003. ...
The Aston Martin DB9, is a Grand tourer launched by Aston Martin in 2004. ...
The BMW 7 Series is a luxury saloon (sedan) made by BMW. It replaced the New Six models in 1977. ...
1997 BMW 850 CSi The BMW 8 Series (chassis code BMW E31) was a V8 or V12 engined 2-door 2+2 coupe built by BMW as a substitute for the original BMW 6 Series in 1989. ...
Bugatti EB110SS The Bugatti EB110 is an exclusive supercar from Bugatti, one of the most celebrated marques in automotive history. ...
The Jaguar XJ is a saloon (or sedan) produced by Jaguar, launched in 1968. ...
The Ferrari 166 was a race car that became a sports car for the street. ...
The 195 was a short-lived sports car produced by Ferrari in 1951. ...
The 212 replaced Ferraris successful 166 sports car in 1951. ...
Ferraris highest-end models in the 1950s and 1960s were the Americas. ...
Ferraris highest-end models in the 1950s and 1960s were the Americas. ...
The Ferrari 250 is a series of sports cars from the 1950s and early 1960s. ...
Ferraris highest-end models in the 1950s and 1960s were the Americas. ...
Ferraris highest-end models in the 1950s and 1960s were the Americas. ...
The Ferrari 275 was a 2-seat front-engined Gran Turismo automobile produced between 1964 and 1968. ...
The Ferrari 330 cars replaced the successful Ferrari 250 series beginning in 1963. ...
Ferraris highest-end models in the 1950s and 1960s were the Americas. ...
See also Ferrari Daytona for the 365 GTB/4, GTS/4, GTC/4, GT4 2+2 models The 365 was Ferraris large FR layout GT car and 2+2 line, replacing the 330 and 500 Superfast for 1966. ...
See also Ferrari 365 for the round-bodied 365 California, GT 2+2, GTC and GTS The Ferrari Daytona (correctly named the 365 GTB/4) was a Gran Turismo automobile produced from 1968 to 1973. ...
The Ferrari 400 and 412 models are lesser-known front-engined 2+2 coupes. ...
The Ferrari 456 and 456M is a high-performance Ferrari front-engined grand tourer. ...
The Ferrari F50 is a high-performance automobile made by Ferrari. ...
The Ferrari 550 Maranello and 550 Barchetta were 2-seat Gran Turismo automobiles. ...
The Ferrari 575M Maranello is a two seat, two door, grand tourer car built by Ferrari. ...
Wikimedia Commons has media related to: Enzo Ferrari The vehicle is literally named Enzo Ferrari, not Ferrari Enzo as would be more typical. ...
The Ferrari 612 Scaglietti is a Gran Turismo car that entered production in 2004. ...
This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
1966 Jaguar E-type roadster Jaguar E-type coupe The Jaguar E-type or XK-E is an automobile manufactured by Jaguar Cars between 1961 and 1975. ...
1988 Jaguar XJ-S The Jaguar XJ-S (later the XJS) was a luxury GT coupe from Jaguar. ...
The Jaguar XJ is a saloon (or sedan) produced by Jaguar, launched in 1968. ...
1991 Jaguar XJR-15 The Jaguar XJR-15 is a rare sports car produced by Jaguar. ...
The Lamborghini 350GT was the first Lamborghini, revealed on the Turin motor show in 1963. ...
Wikipedia does not have an article with this exact name. ...
A Lamborghini Miura S Wikimedia Commons has media related to: Lamborghini Miura The Lamborghini Miura was a sports car built in Italy by Lamborghini between 1966 and 1973. ...
The Lamborghini Espada was a car built by Italian car manifacturer Lamborghini between 1968 and 1978. ...
Lamborghini Jarama was a sports coupé built by Lamborghini between 1970 and 1976. ...
The Lamborghini Countach was a supercar produced by Lamborghini in Italy. ...
This article needs to be cleaned up to conform to a higher standard of quality. ...
The Lamborghini Murciélago is a GT and supercar automobile made by Lamborghini. ...
1948 Lincoln Continental Wikimedia Commons has more media related to: Lincoln Continental Lincoln Continental is a name that has been used several times by the Lincoln division of Ford Motor Company for a line of luxury cars. ...
Lincoln Zephyr Series HB 1937, USA The Lincoln Zephyr is a brand name of automobile from the Lincoln automobile division of the Ford Motor Company. ...
The Lister Storm was a homologated racing car built by Lister Cars of the United Kingdom beginning in 1993. ...
Maserati MC12 The Maserati MC12 is a mid-engined supercar derivative of the Ferrari Enzo Ferrari. ...
Wikimedia Commons has more media related to: Maybach 57 The 57 and 62 were the first Maybach brand models after the automobile brands revival, produced by DaimlerChrysler (Mercedes-Benz). ...
McLaren F1 Wikimedia Commons has media related to: 1996 McLaren F1 The McLaren F1 is a roadcar, or as many people view as a supercar, manufactured by McLaren Cars, a British company. ...
The Mercedes-Benz S-Class is an expensive luxury automobile designed and built by DaimlerChrysler in Stuttgart, Germany. ...
1993 Mercedes-Benz 600 SEC, a predecessor of the modern CL-Class 2001 Mercedes-Benz CL63 AMG The Mercedes-Benz CL-Class is a 2-door luxury coupe. ...
The Mercedes-Benz SL-Class is a series of automobiles with some of the most prestigious nameplates in the motor industry. ...
Mercedes-Benz CLK-GTR Mercedes-Benz CLK-GTR, recorded as the most expensive production car ever built, with a price of £1,100,000 it certainly deserved its title. ...
The Pagani Zonda is a supercar made by Italian car maker Pagani. ...
Peugeot 907 is a concept car from Peugeot. ...
1999 Rolls-Royce Silver Seraph (front) 1999 Rolls-Royce Silver Seraph (rear) The Rolls-Royce Silver Seraph, produced from 1998 to 2002, was first unveiled on March 3, 1998 at the Geneva Motor Show. ...
A Phantom at the 2005 United States Grand Prix Rear view of a 2005 Phantom The Rolls-Royce Phantom is a luxury saloon (sedan) automobile made by Rolls-Royce. ...
The Toyota Century is a large four-door limousine produced by Toyota mainly for the Japanese market. ...
LM002 The Lamborghini LM002 is an SUV that was built by the Lamborghini automobile company between 1986 and 1993. ...
Heavy trucks Tatra uses a 17.6 L air-cooled turbo diesel V12 engine in many of their trucks, for instance the Tatra T813 and Tatra T815. Some trucks have been fitted with twin V12s. Tatra mountains - a mountain range, part of the Carpathian Mountains, between Poland and Slovakia. ...
Turbocharger cutaway A turbocharger is an exhaust gas driven compressor used in internal-combustion engines to increase the power output of the engine by increasing the mass of oxygen entering the engine. ...
The diesel engine is a type of internal combustion engine; more specifically, it is a compression ignition engine, in which the fuel is ignited by being suddenly exposed to the high temperature and pressure of a compressed gas containing oxygen (usually atmospheric air), rather than a separate source of ignition...
The driver of this DAF tractor with an auto-transport semi-trailer prepares to offload Skoda Octavia cars in Cardiff, Wales For further uses of the word truck, see Truck (disambiguation). ...
Tatra T815 is a truck produced by Tatra. ...
GMC produced a large gasoline-burning V12 in the 1960s for trucks, the "Twin-Six"; it was basically GMC's large-capacity truck V6, doubled, with four cam covers and four exhaust manifolds. Its engine displacement was 702 in³ (11.5 L), and while power was not too impressive at 250 SAE net horsepower (190 kW), torque was 585 lbf·ft (793 N·m). It was possibly the last gasoline engine used in heavy trucks in the United States. GMC Logo GMC Truck is a United States based brand name of premium trucks, vans, SUVs and other heavy-duty automobiles. ...
Gasoline is a petroleum-derived liquid mixture consisting primarily of hydrocarbons, used as fuel in internal combustion engines. ...
In automotive engineering, an intake manifold or inlet manifold is a part of an engine that supplies the fuel/air mixture to the cylinders. ...
Engine displacement is defined as the total volume of air/fuel mixture an engine can draw in during one complete engine cycle; it is normally stated in cubic inches, cubic centimeters, or litres. ...
// Mechanical power In physics, power (symbol: P) is the amount of work W done per unit of time t. ...
In physics, torque can be thought of informally as rotational force. Torque is measured in units of newton metres, and its symbol is Ï. The concept of Torque, also called moment or couple, originated with the work of Archimedes on levers. ...
Auto racing V12 engines used to be common in Formula One and endurance racing. Between 1965 and 1980, Ferrari, Weslake, Honda, BRM, Maserati, Matra, Alfa-Romeo, Lamborghini and Tecno used 12-cylinder engines in Formula One, either V12 or Flat-12, but the Ford (Cosworth) V8 had a slightly better power-to-weight ratio and less fuel consumption, thus it was more successful despite being less powerful than the best V12s. During the same era, V12 engines were superior to V8s in endurance racing, reduced vibrations giving better reliability. In the 1990s, Renault V10 engines proved their superiority against the Ferrari and Honda V12s and the Ford V8. Now all Formula One cars use V10 engines. The inaugural Formula One World Championship was won by Italian Giuseppe Farina in his Alfa Romeo in 1950, barely defeating his Argentine teammate Juan Manuel Fangio. ...
Endurance racing can refer to races involving persons running in events such as marathons or triathlons, long cross-country skiing events, the racing of horses or other animals, or motorsport. ...
1965 (MCMLXV) was a common year starting on Friday (link goes to calendar). ...
1980 (MCMLXXX) was a leap year starting on Tuesday. ...
The Ferrari Gestione Industriale badge on the front of a 330 GTC Ferrari is an Italian manufacturer of high end race cars and high-performance sports cars formed by Enzo Ferrari in 1929. ...
Gurney-Weslake engine. ...
Honda Motor Co. ...
British Racing Motors (generally known as BRM) was a British Formula 1 motor racing team. ...
Present Maserati logo (see also original logo) Maserati is a famous Italian manufacturer of racing cars and sports cars, established in 1914 in Bologna. ...
Mécanique Avion TRAction or Matra is a French company covering a wide range of activities mainly related to aeronautics and weaponry which today operates as the Lagardère Group. ...
Alfa Romeo is an Italian automobile manufacturer. ...
Lamborghini logo 2004 Lamborghini Gallardo 2004 Lamborghini Murciélago Roadster Automobili Lamborghini S.p. ...
Tecno was a Formula One constructor from Italy. ...
A flat-12 is an internal combustion engine in flat configuration, having 12 cylinders. ...
Ford may mean a number of things: A ford is a river crossing. ...
A Ford Cosworth DFV on a Ligier JS11 Cosworth is an engine design and manufacture company founded in 1958, specialising in engines for automobile racing. ...
The Liberty V8 aircraft engine clearly shows the configuration A V8 engine is a V engine with eight cylinders. ...
// V10 A V10 is an engine in V configuration, having 10 cylinders in two banks of five. ...
The Ferrari Gestione Industriale badge on the front of a 330 GTC Ferrari is an Italian manufacturer of high end race cars and high-performance sports cars formed by Enzo Ferrari in 1929. ...
Honda Motor Co. ...
The Ford Motor Company (often referred to simply as Ford; sometimes nicknamed FoMoCo), NYSE: F is an automobile maker founded by Henry Ford in Dearborn, Michigan, United States (where the company is currently headquartered), and incorporated on June 16, 1903. ...
// V10 A V10 is an engine in V configuration, having 10 cylinders in two banks of five. ...
Large diesel engines V12 is a common configuration for large diesel engines; most are available with differing numbers of cylinders in V configuration to offer a range of power ratings. Many diesel locomotives have V12 engines. The diesel engine is a type of internal combustion engine; more specifically, it is a compression ignition engine, in which the fuel is ignited by being suddenly exposed to the high temperature and pressure of a compressed gas containing oxygen (usually atmospheric air), rather than a separate source of ignition...
Great Western Railway No. ...
Mercedes (MTU) manufacture a line of V12 diesel engines for marine use. These engines commonly power craft up to about 100 tonnes in pairwise configurations and range in power from about 1 to 4 MW. A tonne, sometimes known as metric ton in American English, (symbol t) is a unit of mass. ...
External links - Technical history of the Jaguar V12
- GMC 6066 "Twin 6" trucks
| Piston engine configurations | | Straight | 2, 3, 4, 5, 6, 8, 10, 12, 14 | | V | 2, 4, 6, 8, 10, 12, 16, 20, 24 | | Flat | 2, 4, 6, 8, 12, 16 | | W | 8, 12, 16, 18 | | Other inline | H, VR6, Square, Opposed, U | | Other | Radial (Rotary), Pistonless (Wankel) | |