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 4Japanese
{{Japanese racing ladder
Auto racing series in Japan
Formula racing
Formula racing series
Recurring sporting events established in 1993