John Wyer (b. 11 December 1909, Kidderminster, England - d. 1989, Scottsdale, Arizona, U.S.) was an automobile racing engineer and team manager. He is mainly associated with cars running in the lightblue and orange livery of his longtime sponsorship partner Gulf Oil.
As team manager and team owner, Wyer won the 24 Hours of Le Mans several times. His first victory came in the 1959 edition, in his tenth anniversary as Aston Martin team manager, helping Carroll Shelby and Roy Salvadori win with the DBR1. The team also won the 1000km Nürburgring in three consecutive years.
When Ford closed the project, John Wyer and John Willment formed J.W. Automotive (JWA). As Wyer was the well known team manager and present at race tracks, it was widely assumed that JW stands for John Wyer even though it means John Willment, as stated by Willment's brother-in-law Hans Herrmann.
With backing from Gulf Oil, Wyer created the Ford-powered Mirage M-1, a prototype that won the 1967 1000km Spa. Due to a rule change that came in effect for 1968, prototypes were limited to 3000cc, while sportscars could have 5000cc if at least 50 were built. This applied to the two-year-old Ford GT40s, which were modified by Wyer. As a surprise, Wyer won the World Sportscar Championship for Ford in 1968 even though the 2200cc Porsche 907 were considered favorites at the beginning of the season. The superior power of the 5000cc V8 allowed them to win on fast tracks, and especially at Le Mans two years in a row in 1968 and 1969, even though they were outclassed at twistier tracks.
As it was obvious that the GT40 would finally become obsolete after 1969, Wyer switched to the new Porsche 917. Wyer's team even became the factory's main partner and was a major factor in developing the wedge-shaped Kurzheck tail of the 1970 917K which made the car much more stable than the original 1969 version.
Battling with Ferrari 512, the other Porsche team that was backed by Martini Racing and led by Vic Elford, and even Gulf-Porsche-Stars Jo Siffert and Pedro Rodríguez competing against each other, JWA earned many victories in 1970 and 1971, but not at Le Mans. In fiction, a Gulf-Porsche 917K won in Le Mans (film), though, making the Gulf colors even more famous.
In 1972, 5 litre sportscars like the 917s were banned, and the 3000cc Porsche 908 prototypes were also dropped by the factory as the new weight limit was too high, removing the 908's advantage that balanced their lack of power.
Wyer adopted the new 3.0 L regulations and started building Gulf-Mirage prototypes once more, using a Formula 1 Cosworth DFV engine. The successful F1-engine was considered unsuited for endurance racing as vibrations took their toll after several hours, so modifications had to be made. After three years of trying, Jacky Ickx and Derek Bell finally achieved Wyer's last win at Le Mans, in 1975.
The following year, John Wyer retired from automotive competition and sold his team to Harley Cluxton's Grand Touring Cars operation.