Balboa (United States)

Balboa Motors Corporation was an American automobile manufacturer based in Fullerton, California, that operated briefly from 1924 to 1925. The company was founded by William H. Radford, who served as the chief engineer and designer of the Balboa automobile. The Balboa was notable for its advanced mechanical features and sleek design, which were considered ahead of its time.

The initial prototype of the Balboa was completed in early 1924 and was equipped with a supercharged straight-8 engine designed by Radford. This engine produced 100 horsepower and incorporated innovative rotary transfer valves. The car featured Tru-arc disc wheels and four-wheel hydraulic brakes, and it had a wheelbase of 131 inches (3,325 mm). The Balboa made its public debut in March 1924 at the Ambassador Hotel in Los Angeles, California.

Despite its promising design, the Balboa faced significant challenges, particularly with its engine. The original Kessler engine was replaced with a Continental 8-cylinder L-head engine due to performance issues. Ultimately, only three prototypes were completed: the initial touring car, a Brougham, and a bare chassis with a shorter wheelbase of 127 inches (3,223 mm). The prototypes were constructed in a former wire plant located in an area of orange groves, with prices starting at $2,900 for the first unit.

The company struggled with engine difficulties and allegations of stock manipulation, which led to its decline. Balboa Motors Corporation ceased operations shortly after its final exhibition in Santa Ana, California, in March 1925.