Japan Formula 4
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.
| Category | Single seaters |
|---|---|
| Country |  |
| Inaugural season | 1993 |
| Tyre suppliers | Yokohama (2008-2011) Dunlop (2012-present) |
| Drivers' champion | West: East: |
| Official website | Formula 4 |
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.
Champion
| Season | East Champion | West Champion |
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External links
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