Engine Developments Limited is a British motor manufacturers in motor sport. It was founded in 1971 by John Judd and Jack Brabham. The company primarily known for her trademark Judd engine. The company introduced racing engines forth for Formula 1, Formula 3000 and some other classes. Judd worked as a service provider for Nissan, Honda or Yamaha.
Engine Developments was 1988, the last year of the so-called turbo era, the way to Formula 1 until 1992 under the brand name Judd two different eight-cylinder engines and a ten-cylinder engine have been developed which were used primarily by medium and small teams. An exception was Williams, the champion team of 1987, in 1988 after the departure of long-time engine partner Honda was in a phase of transition and year bridged up to the operational readiness of the new Renault engines with engines of John Judd.
The first Formula 1 engine from Engine Developments was named Judd CV. The engine was based on a BV said construction, which in turn had its roots in an engine for the Formula 3000. Development was carried out with financial support from Leyton House, the sponsor of the 1987 re- established March teams; later, Williams also participated in the development costs. In the CV, it was a comparatively simple construction, eight cylinder engine with 3.5 liter displacement and a fork angle of 90 degrees. The engine was slightly stronger than the naturally aspirated Cosworth, if these were delivered in the DFZ specification, but proved to be susceptible to defects.
The Judd CV was replaced in 1989 by the completely newly constructed type EV. Smaller customer teams used the CV however until 1990.
1989 appeared the Judd EV, a compact eight-cylinder with a fork angle of 76 degrees, which was more powerful than its predecessor. Brabham and Leyton House / March purchased the EV engine, and each team came with him in 1989 a third place. The most successful Judd team of the year, however, was the Lotus that still went with the old CV and a total of 15 points in the constructors' championship reached, while Brabham and March scored only eight and four championship points.
The EV was the most developed Judd engine in the following season. Leyton House was in 1990 with seven championship points, the most successful Judd team. The EV was used until 1991.
The third Formula 1 engine from Engine Developments was introduced in 1991 Judd GV, a ten-cylinder engine with a fork angle of 72 degrees. The GV was powerful and helped the BMS Scuderia Italia Italian team that implemented a Dallara chassis and the new Judd engine this year exclusively received, the eighth in the constructors' championship. The following year, the General Assembly was only at Andrea Moda Formula and Brabham, two teams that were fighting for their existence and the power of the engine could not be implemented adequately.
Technical data of Judd engines
Conjunction with Yamaha
As of 1993 produced Engine Developments Formula 1 engines for Yamaha. The Japanese company originally developed and built completely unsuccessful were initially ( as the eight-cylinder engine, which was founded in 1989 exclusively used by Zakspeed ) and even later, as had become ambitious twelve-cylinder engines from their own Formula 1 engines at Brabham ( 1991) and imports only small results in Jordan ( 1992).
The end of 1992 and Yamaha Engine Developments included a link for the joint construction of Formula 1 engines. Indeed, the development and the construction was largely carried out at Engine Developments, while Yamaha individual contributed their own ideas and the project is predominantly financed.
The 1993 presented ten-cylinder engine, type Yamaha OX10A was an evolution of Judd GV; the essential data were consistent with the ten-cylinder engine, first used in 1991. It was followed by several further developments before the engine was in the Formula 1 1996 season replaced by the OX11A.
In the years 1993 to 1996 Tyrrell received the Yamaha engines exclusively. The fact that the engines were provided free of charge, saved in these years, the stock of the traditional teams. Tyrrell - Yamaha could bring in more championship points in every season with the exception of the first year, but it did not produce the hoped for breakthrough. The best result of the partnership was the third place Mark Blundell at the Grand Prix of Spain 1994. Should be the last podium of Tyrrell. 1997 Arrows received the Yamaha engines exclusively. The team was as ambitious as Tom Walkinshaw had taken over the management and Damon Hill, Formula 1 World Champion 1996, was engaged as a driver. When unusual running the Grand Prix of Hungary in 1997, it would almost come to a victory of Arrows- Yamaha, but in the penultimate lap of the race stopped a technical defect at the sensational journey Hills.
At the end of the 1997 season Yamaha introduced a his Formula 1 program.
Formula 1 teams with engines from Engine Developments
More motor sport classes
Judd also supplied for many years engines for the Formula 3000th The engines known as Judd BV based on a design from Honda, the Judd developed over the years on. The F3000 - division was acquired in the 1990s by Zytek.
Over the years, Judd was also represented very strong in the sports prototypes and cooperated there with the likes of Pescarolo Sport or Racing for Holland. 2000 Ferrari 333SP was converted to a Judd engine.