Offenhauser was an
AmericaThe United States of America is a federal constitutional republic comprising fifty states and a federal district...
n racing engine manufacturer that operated from 1933 to 1983.
The Offenhauser engine, familiarly known as the "Offy", was developed by
Fred OffenhauserFred Offenhauser , was an automotive engineer and mechanic who designed the Offenhauser racing engine, nicknamed the "Offy", which dominated competition in the Indianapolis 500 race for decades....
and his employer
Harry Arminius MillerHarry Arminius Miller was an influential and famous American race car builder, most active in the 1920s and 1930s...
, after maintaining and repairing a 1913
PeugeotPeugeot is a major French car brand, part of PSA Peugeot Citroën, the second largest carmaker based in Europe.The family business that precedes the current Peugeot company was founded in 1810, and manufactured coffee mills and bicycles. On 20 November 1858, Emile Peugeot applied for the lion...
Grand PrixGrand Prix motor racing has its roots in organised automobile racing that began in France as far back as 1894. It quickly evolved from a simple road race from one town to the next, to endurance tests for car and driver...
car of the type which had won the
Indianapolis 500The Indianapolis 500-Mile Race, also known as the Indianapolis 500, the 500 Miles at Indianapolis, the Indy 500 or The 500, is an American automobile race, held annually, typically on the last weekend in May at the Indianapolis Motor Speedway in Speedway, Indiana...
. Impressed by the double overhead cam, four-valve-per-cylinder design, which was a great leap forward at the time, they designed an engine on similar principles. Originally, it was sold as a
marine engineA marine engine is an engine that propels a ship or boat. Types of marine engine include:*Marine steam engine*Petrol engine or gasoline engine*Diesel engine*Steam turbine*Gas turbine-See also:*Marine propulsion*Engine room*Marine automobile engine...
. In 1930, a four-cylinder 151 cid Miller engine installed in a race car set a new international
land speed recordThe land speed record is the highest speed achieved by a wheeled vehicle on land. There is no single body for validation and regulation; in practice the Category C flying start regulations are used, officiated by regional or national organizations under the auspices of the Fédération...
of 144.895 mi/h. Miller developed this engine into a twin overhead cam, four-cylinder, four-valve-per-cylinder 220 cid (3.6 L) racing engine. This would be used in
midgetMidget cars, also Speedcars in Australia, are very small race cars with a very high power-to-weight ratio and typically use four-cylinder engines.-Cars:Typically, these cars have 300 to 400 horsepower and weigh...
s and
sprintSprint cars are high-powered race cars designed primarily for the purpose of running on short oval or circular dirt or paved tracks. Sprint car racing is popular in the United States, Canada, Australia, New Zealand and South Africa....
s into the 1960s, with a choice of
carburetorA carburetor , carburettor, or carburetter is a device that blends air and fuel for an internal combustion engine. It is sometimes shortened to carb in North America and the United Kingdom....
or
HilbornStuart Hilborn was an automotive engineer. He became interested in amateur racing on dry lake beds before World War II. After the war, he began experimenting with ideas for mechanical fuel injection, and tested them on his own race cars...
fuel injection. When Miller went bankrupt in 1933, Offenhauser bought the shop and the rights to the engine. He and another Miller employee, draftsman Leo Goossen, further developed the Miller into the Offenhauser engine.
One of the keys to the Offenhauser engine's success was power. A 251.92 cubic inch (4,128.29 cm³) twin-cam four-cylinder racing Offy with a 15:1
compression ratioThe 'compression ratio' of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its largest capacity to its smallest capacity...
and a 4.28125 by 4.375 in (108.7 by 111.1 mm) bore and
strokeA stroke, previously known medically as a cerebrovascular accident , is the rapidly developing loss of brain function due to disturbance in the blood supply to the brain. This can be due to ischemia caused by blockage , or a hemorrhage...
, could produce 420 hp at 6,600 rpm (1.77 hp
per cubic inch (81 kW/L). Other variants of the engine produced up to 3 hp
per cubic inch (137 kW/L). Another reason for the engine's success was reliability; unit construction (no separate cylinder head) meant the engine was not vulnerable to head gasket or cylinder stud problems and allowed for higher cylinder pressures.
From 1934, through the 1970s, the Offenhauser engine dominated American open wheel racing, winning the
Indianapolis 500The Indianapolis 500-Mile Race, also known as the Indianapolis 500, the 500 Miles at Indianapolis, the Indy 500 or The 500, is an American automobile race, held annually, typically on the last weekend in May at the Indianapolis Motor Speedway in Speedway, Indiana...
27 times. By then, the company had already been sold, right after World War II, to Meyer-Drake, who continued to build the engines. From 1950 through 1960, Offenhauser-powered cars won the Indy 500 and achieved all three podium positions, winning the
pole positionThe term "pole position", as used in motorsports, comes from the horse racing term where the number one starter starts on the inside next to the inside pole. The term made its way, along with several other customs, to auto racing. In circuit motorsports, a driver has pole position when he or she...
in 10 of the 11 years. In 1959
Lime Rock ParkLime Rock Park is a natural-terrain motorsport road racing venue located in Lime Rock, Connecticut, United States, a hamlet in the village of Lakeville, Connecticut, in the state’s northwest corner...
held a famous
Formula LibreFormula Libre is a form of automobile racing allowing a wide variety of types, ages and makes of purpose-built racing cars to compete "head to head". This can make for some interesting matchups, and provides the opportunity for some compelling driving performances against superior machinery...
race, where
Rodger WardRodger M. Ward was an American racecar driver who won the 1959 and 1962 Indianapolis 500. He also was the 1959 and 1962 USAC Championship Car champion.-Early history:...
shocked the expensive and exotic
sports carA sports car is a small, usually two seat, two door automobile designed for high speed driving and maneuverability....
contingent by beating them on the
road courseRoad racing is a general term for most forms of motor racing held on paved, purpose-built race tracks , as opposed to oval tracks and off-road racing...
in an Offenhauser powered midget car, which was normally considered competitive for
oval trackOval track racing, also known as oval racing, is a form of closed-circuit automobile racing that is contested on an oval-shaped track. An oval track differs from a road course in that the layout resembles an oval with turns in only one direction, almost universally left...
s only.
When Ford came on to the scene in 1963, the Offy lost its dominion over Indy car racing, although it remained a competitive winner through the mid 1970s even with the advent of turbocharging. Before turbo boost limits, over 1000 bhp could be attained using around 120 in Hg (44.3 psi (3.1 bar)) boost. The final 2.65-litre 4 cyl Offy, restricted to 80 in Hg (24.6 psi (1.7 bar)) boost pressure, gave 770 bhp at 9,000 rpm. However, the Cosworth DFX soon proved to be unbeatable and the Offy's last victory came at Trenton in 1978, in the hands of
Gordon JohncockGordon Johncock is a former racing driver, best known as a two-time winner of the Indianapolis 500 and the 1976 USAC Marlboro Championship Trail champion. Johncock was most often simply referred to as "Gordy."...
's Wildcat. The last time an Offy-powered car raced was at
PoconoPocono Raceway also known as the Tricky Triangle, is a superspeedway located in the Pocono Mountains of Pennsylvania at Long Pond...
in 1982 for the Domino's Pizza Pocono 500, in an Eagle chassis driven by
Jim McElreathJim McElreath , is a former driver in the USAC and CART Championship Car series.-Racing career:He raced in the 1961-1983 seasons, with 178 combined career starts, including 15 in the Indianapolis 500 in 1962-1970, 1973–1974, and 1977-1980. He finished in the top ten 101 times, with five victories...
, although two Vollstedt chassis with Offenhauser engines failed to qualify for the 1983
Indianapolis 500The Indianapolis 500-Mile Race, also known as the Indianapolis 500, the 500 Miles at Indianapolis, the Indy 500 or The 500, is an American automobile race, held annually, typically on the last weekend in May at the Indianapolis Motor Speedway in Speedway, Indiana...
.
World Championship Indy 500 summary
| Season |
Cars Entered |
Winning Driver |
Second Driver |
Third Driver |
Polesitter |
Race Report |
| 1950 The 1950 Formula One season included the inaugural FIA Formula One World Championship season, which commenced on May 13, 1950, and ended on September 3 after 7 races...
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Johnnie Parsons Johnnie Parsons was an American race car driver from Los Angeles, California who won the Indianapolis 500 in 1950....
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Bill Holland Bill Holland was an American race car driver from Philadelphia, Pennsylvania who won the Indianapolis 500 in 1949. He nearly won as a rookie in 1947 but slowed and allowed teammate Mauri Rose to pass him seven laps from the end, mistakenly believing that Rose was a lap down...
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Mauri Rose Mauri Rose was an American racecar driver.He started from the pole position driving a Maserati in the 1941 Indianapolis 500, but spark plug problems put him out of the race after sixty laps. He then took over the Wetteroth/Offenhauser car being driven by Floyd Davis that had started in 17th place....
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Walt Faulkner Walt Faulkner was an American racing driver from Tell, Texas, who moved to Milledgeville, Georgia at the age of two-and-a-half, and to Lake Wales, Florida at the age of eight. He then moved to Los Angeles, California in 1936. Faulkner competed mainly in the National Championship and in stock car...
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Report The 1950 Indianapolis 500 was an automobile race which was held on Tuesday, May 30, 1950 at the Indianapolis Motor Speedway. The event was the third round of the 1950 World Drivers' Championship...
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| 1951 The 1951 Formula One season was the second season of FIA Formula One motor racing. It featured the 1951 World Championship of Drivers, which commenced on May 27, 1951 and ended on October 28 after eight races...
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Lee Wallard Lee Wallard was an American race car driver. In the 1951 Indianapolis 500 Wallard drove the Number 99 Belanger Special to victory, at age 40. Tony Bettenhausen had passed up the car, because he wanted to drive a newer front-wheel drive vehicle....
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Mike Nazaruk Mike Nazaruk was an American racecar driver. He raced midget cars, sprint cars, and IndyCars. He was nicknamed "Iron Mike."...
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Manny Ayulo Manuel Ayulo was an American racecar driver. His efforts, along with those of friend and teammate Jack McGrath, helped establish track roadsters as viable race cars...
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Report The 1951 Indianapolis 500 an automobile race which was held on Wednesday, May 30, 1951 at Indianapolis Motor Speedway. The event was the opening race of the 1951 AAA National Championship Trail and the second race of the 1951 World Championship of Drivers....
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| 1952 The 1952 Formula One season was the third season of FIA Formula One motor racing. In comparison to previous seasons, the 1952 season consisted of a relatively small number of Formula One races, following the FIA's decision to run the Grand Prix events counting towards the World Championship of...
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Troy Ruttman Troy Ruttman was an American race car driver. He was the older brother of NASCAR driver Joe Ruttman.Ruttman won the Indianapolis 500 in 1952, and , he is the youngest winner of the race....
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Jim Rathmann Jim Rathmann was an American race car driver who won the Indianapolis 500 in 1960....
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Sam Hanks Sam Hanks was an American racecar driver who won the 1957 Indianapolis 500. He was a barnstormer, and raced midget and Champ cars.-Racing career:...
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Fred Agabashian Fred Agabashian was an Armenian-American racer of midget cars and Indy cars.-Midget car:...
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Report The 1952 Indianapolis 500 was an automobile race held on Friday, May 30, 1952 at the Indianapolis Motor Speedway. The event was the second round of the 1952 World Drivers' Championship. Troy Ruttman won the race, bringing the Borg-Warner Trophy home for car owner J.C. Agajanian.Bill Vukovich led...
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| 1953 As in , the 1953 Formula One season consisted of a small number of Formula One races, following the FIA's decision to once again run the World Drivers' Championship to Formula Two regulations rather than Formula One....
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Bill Vukovich Bill Vukovich was a Serbian American automobile racing driver. He won the 1953 and 1954 Indianapolis 500 plus two more American Automobile Association National Championship races...
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Art Cross Art Cross was an American racecar driver. He was the first recipient of the Indianapolis 500 Rookie of the Year Award in 1952.-Racing career:...
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Sam Hanks Sam Hanks was an American racecar driver who won the 1957 Indianapolis 500. He was a barnstormer, and raced midget and Champ cars.-Racing career:...
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Bill Vukovich Bill Vukovich was a Serbian American automobile racing driver. He won the 1953 and 1954 Indianapolis 500 plus two more American Automobile Association National Championship races...
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Report The 1953 Indianapolis 500 was an automobile race held on Saturday, May 30, 1953 at Indianapolis Motor Speedway. The event was the second round of the 1953 World Drivers' Championship.-Race:...
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| 1954 The 1954 Formula One season included the 5th FIA Formula One World Championship season, which commenced on January 17, 1954, and ended on October 24 after nine races. The Championship was won by Juan Manuel Fangio who drove, and won races, for both Maserati and Mercedes over the course of the season...
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Bill Vukovich Bill Vukovich was a Serbian American automobile racing driver. He won the 1953 and 1954 Indianapolis 500 plus two more American Automobile Association National Championship races...
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Jimmy Bryan James Ernest Bryan was an American racecar driver. Born in Phoenix, Arizona, Bryan died as a result of injuries sustained in a champ car race at Langhorne Speedway.-Career:...
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Jack McGrath John James "Jack" McGrath was an American racecar driver.A major player in the "mighty midgets" at Los Angeles' Gilmore Speedway in the late 1940s, McGrath won the first CRA championship in 1946 and was dubbed "King of the Hot Rods." His efforts, along with those of friend and teammate Manuel...
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Jack McGrath John James "Jack" McGrath was an American racecar driver.A major player in the "mighty midgets" at Los Angeles' Gilmore Speedway in the late 1940s, McGrath won the first CRA championship in 1946 and was dubbed "King of the Hot Rods." His efforts, along with those of friend and teammate Manuel...
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Report The 1954 Indianapolis 500 was an automobile race held on Monday, May 31, 1954 at Indianapolis Motor Speedway. The event was the second round of the 1954 World Drivers' Championship.- Classification :- Notes :...
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| 1955 The 1955 Formula One season was the sixth season of FIA Formula One motor racing. It featured the 1955 World Championship of Drivers, which commenced on January 16, 1955 and ended on September 11 after seven races...
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Bob Sweikert Robert Charles 'Bob' Sweikert was an American racing driver, best known as the winner of the 1955 Indianapolis 500 and the 1955 National Championship, as well as the 1955 Midwest Sprint car championship - the only driver in history to sweep all three in a single season...
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Tony Bettenhausen Melvin E. "Tony" Bettenhausen was an American racing driver, who won the National Championship in 1951 and 1958....
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Jimmy DaviesJimmy Davies was an American racecar driver in Champ cars and midgets. He was the second man to win three USAC National Midget Championships....
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Jerry Hoyt Jerry Hoyt was American racing driver from Chicago, mainly competing in the National Championship. He died in 1955 after crashing in a Sprint car race at Oklahoma City.-Indy 500 results:...
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Report The 1955 Indianapolis 500 was an automobile race held on Monday, May 30, 1955 at Indianapolis Motor Speedway. The event was the third round of the 1955 World Drivers' Championship...
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| 1956 The 1956 Formula One season featured the seventh FIA World Championship of Drivers as well as numerous non-championship races for Formula One cars. The championship series commenced on January 22, 1956 and ended on September 2 after eight races. Juan Manuel Fangio won his third consecutive title,...
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Pat Flaherty George Francis 'Pat' Flaherty, Jr. was an American racecar driver who won the Indianapolis 500 in 1956....
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Sam Hanks Sam Hanks was an American racecar driver who won the 1957 Indianapolis 500. He was a barnstormer, and raced midget and Champ cars.-Racing career:...
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Don Freeland Don Freeland was an American racecar driver who is best known for competing in the Indianapolis 500 eight times....
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Pat Flaherty George Francis 'Pat' Flaherty, Jr. was an American racecar driver who won the Indianapolis 500 in 1956....
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Report The 1956 Indianapolis 500 was an automobile race held on Wednesday, May 30, 1956 at Indianapolis. It was the third round of the 1956 World Drivers' Championship....
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| 1957 The 1957 Formula One season was the eighth season of FIA Formula One motor racing. It featured the 1957 World Championship of Drivers which commenced on January 13, 1957 and ended on September 8 after eight races. Juan Manuel Fangio won his fourth consecutive title, his fifth in total, in his...
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Sam Hanks Sam Hanks was an American racecar driver who won the 1957 Indianapolis 500. He was a barnstormer, and raced midget and Champ cars.-Racing career:...
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Jim Rathmann Jim Rathmann was an American race car driver who won the Indianapolis 500 in 1960....
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Jimmy Bryan James Ernest Bryan was an American racecar driver. Born in Phoenix, Arizona, Bryan died as a result of injuries sustained in a champ car race at Langhorne Speedway.-Career:...
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Pat O'Connor Pat O'Connor was an American racecar driver. He was killed in a 15-car pileup, after sustaining a fatal head injury after rolling his car and catching fire on the first lap of the 1958 Indianapolis 500.He was on the cover of Sports Illustrated in May 1958 adding to the legend of the Sports...
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Report The 1957 Indianapolis 500 was an automobile race held on Thursday, May 30, 1957 at Indianapolis. The event was the third round of the 1957 World Drivers' Championship and the first round of the 1957 USAC Championship Car season.- Classification :- Notes :...
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| 1958 The 1958 Formula One season was the ninth season of FIA Formula One motor racing. It featured the 1958 World Championship of Drivers which commenced on January 19, 1958, and ended on October 19 after eleven races...
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Jimmy Bryan James Ernest Bryan was an American racecar driver. Born in Phoenix, Arizona, Bryan died as a result of injuries sustained in a champ car race at Langhorne Speedway.-Career:...
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George Amick George Amick was an American racecar driver, mainly competing in the American National Championship. He was killed in a crash in a USAC race at Daytona International Speedway...
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Johnny Boyd Johnny Boyd was an American racecar driver.Born in Fresno, California, Boyd drove in the AAA and USAC Championship Car series from 1954 to 1966 with 56 starts...
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Dick Rathmann Dick Rathmann was an American racecar driver....
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Report The 1958 Indianapolis 500 was an automobile race held on Friday, May 30, 1958 at Indianapolis Motor Speedway. The event was the fourth round of the 1958 World Drivers' Championship....
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| 1959 The 1959 Formula One season included the 10th FIA Formula One World Championship season, which commenced on May 10, 1959, and ended on December 12 after nine races...
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Rodger WardRodger M. Ward was an American racecar driver who won the 1959 and 1962 Indianapolis 500. He also was the 1959 and 1962 USAC Championship Car champion.-Early history:...
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Jim Rathmann Jim Rathmann was an American race car driver who won the Indianapolis 500 in 1960....
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Johnny Thomson Johnny Thomson was an American racecar driver. Thomson was nicknamed "the Flying Scot."-Midget cars:...
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Johnny Thomson Johnny Thomson was an American racecar driver. Thomson was nicknamed "the Flying Scot."-Midget cars:...
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Report The 1959 Indianapolis 500 was an automobile race held at Indianapolis on Saturday, May 30, 1959. The event was part of the 1959 World Drivers' Championship.- Classification :- Notes :*Fastest Lead Lap: Johnny Thomson - 1:01.89...
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| 1960 The 1960 Formula One season featured the eleventh FIA World Championship of Drivers, the third International Cup for F1 Manufacturers and numerous non-championship Formula One races...
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Jim Rathmann Jim Rathmann was an American race car driver who won the Indianapolis 500 in 1960....
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Rodger WardRodger M. Ward was an American racecar driver who won the 1959 and 1962 Indianapolis 500. He also was the 1959 and 1962 USAC Championship Car champion.-Early history:...
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Paul GoldsmithPaul Goldsmith is a motorcycle Hall of Famer, Motorsports Hall of Fame of America inductee and former USAC and NASCAR driver.- Motorcycle career :...
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Eddie Sachs Edward Julius Sachs, Jr, born May 28, 1927 in Allentown, Pennsylvania, died May 30, 1964 in Speedway, Indiana was a United States Auto Club driver who was known as the "Clown Prince of Auto Racing." He coined the phrase "If you can't win, be spectacular."...
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Report The 1960 Indianapolis 500 was an automobile race held at Indianapolis on Monday, May 30, 1960. The event was part of the 1960 World Drivers' Championship; the last Indianapolis 500 to be included in the Championship.- Classification :...
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In their 11 World Championship years, Offenhauser partnered for at least one race with the following 35
constructors:
- Adams
Adams was an American racing car constructor. Adams cars competed in one FIA World Championship race - the 1950 Indianapolis 500.-World Championship Indianapolis 500 results:...
- Bromme
Bromme was a racing car constructor who competed in the FIA World Championship from 1951 to 1954.-World Championship Indy 500 results:...
- Christensen
- Deidt
Deidt was a racing car constructor. Deidt cars competed in the FIA World Championship from 1950 to 1952.-World Championship Indy 500 results:...
- Del Roy
Del Roy was a racing car constructor. Del Roy cars competed in one round of the FIA World Championship - the 1953 Indianapolis 500.-World Championship Indy 500 results:...
- Dunn
The Dunn Engineering Special was a racecar entered in the Indianapolis 500 during the second half of the 1950s, when the race was part of the FIA World Championship....
- Eagle
- Elder
Elder was an American racing car constructor. Elder cars competed in one FIA World Championship race - the 1959 Indianapolis 500.-World Championship Indianapolis 500 results:...
- Epperly
Quincy David "Quin" Epperly, Mar. 3, 1913-Jan. 7, 2001, was an American racing car constructor. He was born in Floyd Va. to John Wesley and Iowa Texas Epperly. After completing a correspondence course in "Theory of Aircraft Construction", Quin moved to Southern Ca. in 1940 to work for Lockheed and...
- Ewing
Ewing was an American racing car constructor. Ewing cars competed in two FIA World Championship races - the and Indianapolis 500.-World Championship Indianapolis 500 results:...
- Hall
Hall was an American racing car constructor. Hall cars competed in one FIA World Championship race - the 1951 Indianapolis 500.-World Championship Indianapolis 500 results:...
- Kurtis Kraft
Kurtis Kraft was a designer and builder of race cars. The company was founded by Frank Kurtis.Kurtis Kraft designed and built midget cars, quartermidgets, sports cars, sprint cars and USAC Championship Cars....
- Kuzma
Kuzma was a racing car constructor founded by Eddie Kuzma in the USA. Kuzma cars competed in the FIA World Championship from 1951 to 1960.-World Championship Indy 500 results:Note: all cars were fitted with Offenhauser engines....
- Langley
Langley was an American racing car constructor. Langley cars competed in one FIA World Championship race - the 1950 Indianapolis 500.-World Championship Indianapolis 500 results:...
- Lesovsky
Lesovsky was a racing car constructor. Lesovsky cars competed in the FIA World Championship from 1950 to 1960.-World Championship Indy 500 results:...
- Marchese
Marchese was an American racing car constructor owned by Carl Marchese. Marchese cars competed in two FIA World Championship races - the 1950 and 1951 Indianapolis 500s.-World Championship Indianapolis 500 results:...
- Maserati
Maserati is an Italian luxury car manufacturer established on December 1, 1914, in Bologna. The company's headquarters is now in Modena, and its emblem is a trident. It has been owned by the Italian car giant Fiat S.p.A. since 1993...
- McLaren
McLaren Racing Limited, trading as Vodafone McLaren Mercedes, is a British Formula One team based in Woking, Surrey, United Kingdom. McLaren is best known as a Formula One constructor but has also competed and won in the Indianapolis 500 and Canadian-American Challenge Cup...
- Meskowski
Meskowski was a racing car constructor. Meskowski cars competed in one FIA World Championship race - the Indy 500.-World Championship Indy 500 results:...
- Moore
Moore was an American racing car constructor. Moore cars competed in three FIA World Championship races - the , and Indianapolis 500.-World Championship Indianapolis 500 results:...
- Nichels
Nichels was a racing car constructor. Nichels cars competed in two FIA World Championship races - the and Indy 500.-World Championship Indy 500 results:- External links :* at LaDow Publishing website...
- Olson
- Pankratz
Pankratz was a racing car constructor. Pankratz cars competed in two FIA World Championship races - the and Indy 500.-World Championship Indy 500 results:...
- Pawl
Pawl was a racing car constructor, who competed in three rounds of the FIA World Championship - the , and Indy 500.-FIA World Championship Indy 500 results:...
- Phillips
Phillips was an American racing car constructor. Phillips cars competed in seven FIA World Championship races - the - Indianapolis 500.-World Championship Indianapolis 500 results:...
- Rae
Rae was a racing car constructor. Rae cars competed in one FIA World Championship race - the 1950 Indianapolis 500.-World Championship Indy 500 results:...
- Schroeder
Schroeder was an American racing car constructor. Schroeder cars competed in four FIA World Championship races - the , , and Indianapolis 500.-World Championship Indianapolis 500 results:...
- Sherman
Sherman was an American racing car constructor. Sherman cars competed in two FIA World Championship races - the and Indianapolis 500.-World Championship Indianapolis 500 results:...
- Snowberger
Snowberger was a racing car constructor. Snowberger cars competed in one FIA World Championship race - the 1950 Indianapolis 500.-World Championship Indy 500 results:...
- Stevens
Stevens was an American racing car constructor. Stevens cars competed in six FIA World Championship races - the and - Indianapolis 500.-World Championship Indianapolis 500 results:...
- Sutton
Sutton was a racing car constructor which participated in a single FIA World Championship race - the 1959 Indianapolis 500. Powered by a KK500G Offenhauser I-4, their car was driven by Mike Magill...
- Trevis
Trevis was an American racing car constructor of the 1950s and 60s, begun by Floyd Trevis of Youngstown, Ohio. Trevis cars competed in FIA World Championship and USAC events from 1951 to 1961.-World Championship Indy 500 results:...
- Turner
Turner was an American racing car constructor. Turner cars competed in one FIA World Championship race - the 1953 Indianapolis 500.-World Championship Indianapolis 500 results:...
- Watson
- Wetteroth
Wetteroth was a racing car constructor. Wetteroth cars competed in one FIA World Championship race - the 1950 Indianapolis 500.- Indianapolis 500 results:...