Category Single seaters Inaugural season 1993 | Country Japan Official website Formula 4 | |
Tyre suppliers Yokohama (2008-2011)
Dunlop (2012-present) Drivers' champion West: Toshiki Ōyu
East: Toshiki Ōyu | ||
The JAF Japan Formula 4 (JAF 地方選手権 F4, JAF Chihou Senshuken) is a formula racing class in Japan. The class was founded in 1993 by the Japan Automobile Federation as a class between the FJ1600 and the All-Japan Formula Three Championship.
Car
The Japanese Formula 4 is an open chassis class, open for all chassis manufacturers. Since 2012 the engines have a maximum capacity of 2,000cc. Currently the cars are allowed to be fitted with a Honda K20A, Toyota 3ZR or Nissan SR20 engine. Since 2010 the cars use a monocoque chassis instead of a tube frame. In the first year of the monocoque chassis most cars were West Racing Cars.
References
Japan Formula 4 Wikipedia(Text) CC BY-SA