The 1974 USAC Championship Car season consisted of 14 races, beginning in

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central Ca ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

on March 3 and concluding in Avondale,

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

on November 2. The USAC National Champion was

Bobby Unser Robert William Unser (February 20, 1934 – May 2, 2021) was an American automobile racer. At his induction into the Motorsports Hall of Fame of America in 1994, he had the fourth most IndyCar Series wins at 35 (behind his brother Al, A. J. Fo ...

and the

Indianapolis 500 The Indianapolis 500, formally known as the Indianapolis 500-Mile Race, and commonly called the Indy 500, is an annual automobile race held at Indianapolis Motor Speedway (IMS) in Speedway, Indiana, United States, an enclave suburb of Indi ...

winner was

Johnny Rutherford John Sherman "Johnny" Rutherford III (born March 12, 1938), also known as "Lone Star JR", is an American former automobile racing driver. During an Indy Car career that spanned more than three decades, he scored 27 wins and 23 pole positions in 3 ...

. Due to the events of the

1973 Indianapolis 500 The 57th 500 Mile International Sweepstakes was held at the Indianapolis Motor Speedway in Speedway, Indiana, on Wednesday, May 30, 1973. The race was held over three days due to rain and suffered two major accidents. Three competitors - two driv ...

significant improvements were made to the cars for safety concerns.

Wings A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is expresse ...

were reduced in size, and pop-off valves were added to the

turbocharger In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pro ...

plenums in order to reduce

horsepower Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the ...

and curtail speeds.

Schedule and results

All races running on Oval/Speedway.

Final points standings

Note 1: Jim Hurtubise, Skip Barber, David Hobbs, Sam Posey and Evan Noyes are not eligible for points.
Note 2: Jerry Grant did not obtain a USAC license until after the Ontario event, making him ineligible for points for the first two races of the year.

References

* * * * * http://media.indycar.com/pdf/2011/IICS_2011_Historical_Record_Book_INT6.pdf (p. 223-224)

Schedule and results

Final points standings

References

See also