Formula Beat
| Category | Single seaters |
|---|---|
| Country |  Japan |
| Inaugural season | 1993 |
| Tyre suppliers | Yokohama (2008-2011) Dunlop (2012-present) |
| Drivers' champion | West: Keisuke Ohara East: Yuki Tsunoda |
| Official website | 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.
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 |
|---|---|---|
| 1993 |  ?
|
?
|
| 1994 | ?
|
?
|
| 1995 | ?
|
?
|
| 1996 | ?
|
?
|
| 1997 | Akihiro Asai
|
?
|
| 1998 | Takeyuki Kishi
|
?
|
| 1999 | ?
|
Keita Sawa
|
| 2000 | Issei Nishio
|
Hideaki Nakao
|
| 2001 | ?
|
?
|
| 2002 | Tetuya Fujisawa
|
?
|
| 2003 | Kei Itaka
|
?
|
| 2004 | Masanobu Katou
|
Koudai Tsukakoshi
|
| 2005 | Aki Okada
|
?
|
| 2006 | Muneyuki Kurifu
|
?
|
| 2007 | Kei Itaka
|
?
|
| 2008 | Yusuke Tsuchiya
|
Shota Hanaoka
|
| 2009 | Tsubasa Kondo
|
Shota Hanaoka
|
| 2010 | Makoto Kanai
|
Naoki Nishimoto
|
| 2011 | Yuhi Sekiguchi
|
Ryo Hirakawa
|
| 2012 | Ryousuke Takehira
|
Kosuke Hattori
|
| 2013 | Kenta Yamashita
|
Nobuo Kubo
|
| 2014 | Yuichi Mikasa
|
Nirei Fukuzumi
|
| 2015 | Tadasuke Makino
|
Tadasuke Makino
|
| 2016 | Toshiki Ōyu
|
Toshiki Ōyu
|
| 2017 | Yuki Tsunoda
|
Keisuke Ohara
|