Formula Holden was an Australian open wheel racing category introduced in 1989.
History
Known during its development as Formula Australia, it was initially for chassis constructed from aluminium only, running a 3.8-litre Buick V6 engine as it was then utilised in the new versions of the Holden Commodore (VN). Many of the engines used in the category were built by Perkins Engineering, who normally built Group A Holden Commodores and V8 race engines for privateer touring car teams, as well as company owner, multiple Bathurst 1000 winner and ex-Formula One driver Larry Perkins. Early in 1990, Perkins was reported as saying that his Formula Holden engines were putting out approximately . To make the V6 engines suitable for racing (in the Commodore road cars the engines developed ), a number of specialised parts were supplied by original series sponsor ACL (Automotive Components Limited).
Second-hand Formula 3000 chassis were targeted immediately as a cheap source of cars in addition to local constructors, and under CAMS rules, all cars had to be at least one year old. Formula Holden also used a Dunlop control tyre in its early years. For the 1992 season cars constructed from carbon fibre were allowed. In 2006 an engine upgrade was made available to the 3.6-litre Alloytec V6 engine, although take-up of the Alloytec V6 was far from universal. The engines were usually mounted in ex- Formula 3000 chassis, a large number of which were sourced from the Formula Nippon championship in Japan, but also included cars from other sources and a few specifically designed for the class, like the Australian designed Cheetah, Elfin, Spa (designed by F1 designer Gary Anderson), and the Shrike cars which were designed and built by technical students at the Croydon Park Institute of TAFE in Adelaide.
Formula Holden was in essence a budget form of Formula 3000, the main difference being the engines. As detailed, Formula Holden ran the 3.8 Litre Holden V6 engines. Formula 3000, as its name suggests, ran 3.0 Litre V8 engines including the Cosworth DFV and later the popular Mugen-Honda which were capable of producing over . As a guide to the speed difference between the two categories, television commentator and Formula Holden race driver Neil Crompton tested a Mugen powered Dome Japanese F3000 car at the Phillip Island Circuit in early 1990. The Dome (driven by regular drivers Ross Cheever and Thomas Danielsson) lapped the 4.445 km (2.762 mi) circuit in approximately 1:18 while two months later for the opening round of the 1990 Australian Drivers' Championship, the fastest Formula Holden qualifier was the Ralt RT21 of Simon Kane who qualified in 1:26.97. The Holden V6 engines reportedly had similar torque figures to the F3000 V8's, though they had around less than the V8's which saw the Australian cars have much less top speed.
From its inception in 1989 until 2004 the formula was used to determine the winner of the Australian Drivers' Championship for the CAMS Gold Star, replacing Formula 2 which had been the Gold Star category in 1987 and 1988. From 2005 this title was moved to the Australian Formula 3 Championship.
The first ever Formula Holden race was held at the Mallala Motor Sport Park in South Australia. Mark McLaughlin driving an Elfin FA891, designed and built at the Elfin factory in nearby Adelaide, won the opening race from former dual Australian Formula 2 champion Peter Glover in an Australian designed Cheetah Mk.9 with television commentator turned race driver Neil Crompton third in his Ralt RT21. During the race, television broadcaster Channel 7 claimed that a Formula Holden engine would cost approximately A$9,700.
From 1991 to 1995 the category was officially known as Formula Brabham in honour of Australia's first ever Formula One World Champion Sir Jack Brabham, the only person in history to win the World Championship in a car of his own design in . Sir Jack acted as the category patron for five seasons. In 1996 the name reverted to Formula Holden and from the 2003 season the category was officially called "Formula 4000 powered by Holden".