Factory System Wiring Kits

Judd engines are produced by Engine Developments Ltd., a company founded in 1971 by John Judd and Sir Jack Brabham to design and produce racing engines for competition. Engine Developments Ltd. is based in Rugby, Warwickshire, England. more...

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Judd engines have been supplied to a number of competitive racing teams, including Honda, Yamaha, Mazda, Toyota, Nissan, and the Williams, Leyton House, Lotus, Tyrrell, and Arrows F1 Teams. Engine Developments supplied engines for various teams in F1 races from 1988 to 1997.

Engine Developments continues to design and manufacture Judd engines, and supplies them to participants in several racing series, including acting as the exclusive engine supplier to the Formula 3000 International Championship between 1996 and 2004 through Zytek. The Zytek-Judd units are now the basis of the A1GP series.

Early Judd Engines

John Judd's relationship with Brabham and Honda

John Judd originally worked at Coventry-Climax, including a spell working on their Formula 1 engines. He later moved on to work with the Repco V8s used by Brabham, and undertook road car work for Sir Jack Brabham under the name 'Jack Brabham Conversions' - this became 'Engine Developments Ltd' when Brabham sold off his interest in the marque that bore his name and returned to Australia. Judd was a noted builder of Cosworth DFV engines in the 1970s. When Honda returned to Formula Two racing in the early 1980s they chose Brabham's partners to work with them - Ron Tauranac's Ralt team as their main supplier of chassis and John Judd working with the Japanese works on the design of the V6 F2 engine. After the demise of F2 at the end of the 1984 season Judd continued to develop new engines for Honda.

Judd AV V8

This was the 'Brabham-Honda' turbocharged V8 for CART racing. It scored only one win, for Bobby Rahal at Pocono in 1988. Some developed engines continued to race on into the early 1990s after the Honda badging lapsed. The Judd name almost returned to Champcar in 2003 - see the section below on the XV for more information.

Judd BV V8

This was the first Honda Formula 3000 engine - not the later Mugen V8, but a normally-aspirated three-litre version of the AV.

Judd CV V8

A relatively simple 3.5 litre derivative of the BV for normally-aspirated 3.5 litre Formula 1 use.It became known to Autosport magazine readers after the 1988 season as the "Early Ferry" Judd (as the teams using them would frequently be headed back to their British HQ's before the race had finished by cross channel ferry), and was noted for failures, many of which being traced to marginal cooling, especially in the 1988 Williams. This was originally intended to be used only by March Engineering in 1988, but after being left without engines by Honda, Williams later signed up to use the engine, as did Ligier. There were encouraging signs of speed, but running six cars with a fundamentally new engine did show up some problems. With the arrival of the EV in 1989, the CV became the 'customer' unit for 1990 and beyond.

Read more at Wikipedia.org