The is a formula racing class in Japan. The class was founded in 1993 by the

Japan Automobile Federation The is an automobile association based in Minato, Tokyo. Founded in 1963, the main purpose of the organization is to handle various businesses related to automobiles, and to protect the interests of owners and drivers in Japan. , the organization ...

as a class above the FJ1600 and below the former

All-Japan Formula Three Championship was a national motor racing championship that takes place in Japan. It is a junior-level feeder formula that uses small single seater Formula Three chassis. As a result of Formula 3 naming regulations by the FIA, on 13 August 2019, series pro ...

and the current

Formula Regional Japanese Championship The Formula Regional Japanese Championship is a Japan ese formula racing championship held under FIA Formula Regional car regulations. Announced by the Japan Automobile Federation on 26 December 2019, it was confirmed that K2 Planet, promoter of ...

and

Super Formula Lights is a national formula racing championship that takes place in Japan. It is a junior-level feeder formula that uses the same single seater chassis as the pan-European Euroformula Open Championship. The series will be the first with the new b ...

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 is a Japanese public multinational conglomerate manufacturer of automobiles, motorcycles, and power equipment, headquartered in Minato, Tokyo, Japan. Honda has been the world's largest motorcycle manufacturer since 1959, reaching a producti ...

K20A,

Toyota is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 ...

3ZR or Nissan SR20 engine. Since 2010 the cars use a

monocoque Monocoque ( ), also called structural skin, is a structural system in which loads are supported by an object's external skin, in a manner similar to an egg shell. The word ''monocoque'' is a French term for "single shell". First used for boats, ...

chassis instead of a tube frame. In the first year of the monocoque chassis most cars were West Racing Cars.

Champion

External links

Japan Formula 4
Japanese

{{Japanese racing ladder Auto racing series in Japan Formula racing Formula racing series Recurring sporting events established in 1993