The straight-eight engine or inline-eight engine is an eight-cylinder internal combustion engine with all eight cylinders mounted in a straight line along the crankcase. The type has been produced in side-valve, IOE, overhead-valve, sleeve-valve, and overhead-cam configurations.
Ballot was a French manufacturer, initially of engines, that also made automobiles between 1919 and 1932. Édouard Ballot became well known as a designer of reliable engines. He helped Ettore Bugatti in developing his first engines.
Duesenberg Automobile & Motors Company, Inc. was an American racing and luxury automobile manufacturer founded in Indianapolis, Indiana, by brothers Fred and August Duesenberg in 1920. The company is known for popularizing the straight-eight engine and four-wheel hydraulic brakes. A Duesenberg car was the first American car to win a Grand Prix race, winning the 1921 French Grand Prix. Duesenbergs won the Indianapolis 500 in 1922, 1924, 1925 and 1927. Transportation executive Errett Lobban Cord acquired the Duesenberg corporation in 1926. The company was sold and dissolved in 1937.
An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion chamber in the engine block.
A multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing, and with more smaller valves may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power.
Harold Arminius Miller, commonly called Harry, was an American race car designer and builder who was most active in the 1920s and 1930s. Griffith Borgeson called him "the greatest creative figure in the history of the American racing car". Cars built by Miller won the Indianapolis 500 nine times, and other cars using his engines won three more. Millers accounted for 83% of the Indy 500 fields between 1923 and 1928.
Frederick Samuel Duesenberg was a German-born American automobile and engine designer, manufacturer and sportsman who was internationally known as a designer of racecars and racing engines. Duesenberg's engineering expertise influenced the development of the automobile, especially during the 1910s and 1920s. He is credited with introducing an eight-cylinder engine, also known as the Duesenberg Straight-8 engine, and four-wheel hydraulic brakes, a first for American cars, in addition to other mechanical innovations. Duesenberg was also patentholder of his designs for a four-wheel hydraulic brake, an early automatic transmission, and a cooling system, among others. Fred and his younger brother, August "Augie" Duesenberg, shared the patents, filed in 1913 and renewed in 1918, for their "walking beam" four-cylinder engine and the Duesenberg Straight 8.
August Samuel Duesenberg was a German-born American automobile and engine manufacturer who built American racing and racing engines that set speed records at Daytona Beach, Florida, in 1920; won the French Grand Prix in 1921; and won Indianapolis 500-mile races, as well as setting one-hour and 24-hour speed records on the Bonneville Salt Flats in Utah in 1935. He also shared with his older brother, Frederick S. "Fred" Duesenberg, patents filed in 1913 and renewed in 1918 for a four-cylinder engine design and the Duesenberg Straight 8.
Board track racing was a type of motorsport popular in the United States during the 1910s and 1920s. Competition was conducted on circular or oval race courses with surfaces composed of wooden planks. This type of track was first used for motorcycle competition, wherein they were called motordromes, before being adapted for use by various different types of racing cars. The majority of the American national championship races were contested at such venues during the 1920s.
Russell Clifford Durant was an American playboy and racing driver.
ALFA 40/60 GP or GP was a fully working early racing car prototype made by the company now called Alfa Romeo. Only one example was built in 1914, which was later modified in 1921. This was the creation of Giuseppe Merosi and was the first Alfa Romeo DOHC engine. It had four valves per cylinder, 90 degree valve angle and twin spark ignition. Usually Alfa Romeo DOHC engines are thought to be Vittorio Jano's creations but the first one was Merosi's GP car. This kind of engine architecture was very new for the time, originating from 1912/1913 Peugeot designed by Swiss engineer Ernest Henry. The history of this engine architecture is unclear, but other cars with dual overhead camshafts were made by Sunbeam, Delage and Humber. This 1914 GP car was intended to take part in the French Grand Prix of that year, but for reasons unknown this never happened. In 1921 Giuseppe Campari took part in the Gentlemen G.P. in Brescia with the modified GP car, but was forced to retire due to a leaking radiator.
Hall-Scott Motor Car Company was an American manufacturing company based in Berkeley, California. It was among the most significant builders of water-cooled aircraft engines before World War I.
The 1925 Grand Prix season was the first year for the new AIACR World Manufacturers' Championship season. The championship was won by Alfa Romeo, with its P2 model.
The 1921 Grand Prix season saw motor racing in Europe blossom again. The French Grand Prix was held for the first time since 1914, at La Sarthe, Le Mans. and the inaugural Italian Grand Prix was held in Montichiari, near Brescia. The 3-litre formula of the AIACR, already in use at Indianapolis, was adopted by those Grand Prix meaning manufacturers could design on a common formula.
The 1922 Grand Prix season had several notable events during the year. The AIACR governing body brought in a 2-litre formula for Grand Prix. French companies brought out straight-8 engines for their cars but it was FIAT's 6-cylinder engine that took the trophies. Veteran Felice Nazzaro won the French Grand Prix, held near Strasbourg. It was a tainted victory though, as Nazzaro's nephew was killed when his FIAT's suspension broke in the latter stages of the race. An almost identical accident also happened to team-mate Pietro Bordino, though he was only slightly injured. Pierre de Vizcaya's Bugatti finished second, nearly an hour behind.
The 1924 Grand Prix season saw Grand Prix motor racing spread further across Europe and North America. In Italy a number of new open-road events were held. In France two new circuits were opened – at Montlhéry near Paris and Miramas near Marseille.
The Golden Submarine was an early twentieth century streamlined race car designed and built in 1917 by Fred Offenhauser and Harry A. Miller for Barney Oldfield. AutoWeek said that the vehicle brought Miller "nationwide prominence as a race-car builder".
Frederick Earl "Skinny" Clemons was an American race car designer and racing driver. He was one of the first entrants at the Indianapolis 500. He designed and built his own cars, engines and created his own Independent wheel suspension which he patented in 1934. An identification letter 'C’ or ‘Cm ' often appears in front of the race Numbers on Clemons' cars. Lou Meyer, Joe Russo, Wilber Shaw and many other race drivers drove his cars.
The Duesenberg Model A was the first automobile in series production to have hydraulic brakes and the first automobile in series production in the United States with a straight-eight engine. Officially known as the Duesenberg Straight Eight, the Model A was first shown in late 1920 in New York City. Production was delayed by substantial changes to the design of the car, including a change in the engine valvetrain from horizontal overhead valves to an overhead camshaft; also during this time, the company had moved its headquarters and factory from New Jersey to Indiana. The Model A was manufactured in Indianapolis, Indiana, from 1921 to 1925 by the Duesenberg Automobiles and Motors Company and from 1925 to 1926 at the same factory by the restructured Duesenberg Motor Company. The successors to the company began referring to the car as the Model A when the Model J was introduced.
Ernest Henry was a mechanical engineer. He developed auto racing engines, and is especially well known for his work for Peugeot and Ballot, who dominated Grand Prix auto racing from 1912 to 1921. His engine design directly influenced Sunbeam Racing cars as early as 1914; the 1921 Grand Prix Sunbeams owe much to his work with Ballot and the 1922 Grand Prix Sunbeams were designed by him.
