Fuji, L4-1 engine

L4-1 is the inline four-cylinder gasoline engine which Fuji Heavy Industries developed. I was developed for prototype P-1 use, but, by mass production plan cancellation of P-1, this plane was not recognized by the world, too.

Table of contents

Summary

I refer to "Subaru .1500"

In 1952, the Fuji auto industry starts the development of the car of the 1,500cc grade. The prototype named P-1 carried the Fuji exact industrial FG4A engine that was a company belonging to the same school at first. However, this engine was developed by a request and the investment of the Prince car (たま car), and sale to the Fuji auto industry that it was a competition partner in 1954 when the feeling of prince and the Fuji exact の merger increased became impossible [¹]. On the other hand, the Fuji auto industry ordered an engine of the new 1,500cc grade from Omiya Fuji Kogyo [²] in anticipation of supply stoppage of FG4A, too.

It is the origin of Honda light who was a young engineer of Omiya Fuji Kogyo that took the center of the new engine development on the pretence of an L4-1 type. Honda pushed forward a design while referring to the advice [³] of the engineer registered at from prewar days and Ford consultant, the engine for the compact car of Vauxhall. A prototype is completed in February, 1954, and field firing is carried out and records the output of 45ps. Improvement was added and finally recorded 63ps/4,600rpm afterwards at a bench [⁴]. An increase prototype is produced, and it is really about April, 1955, the following day that the deployment to P-1 was carried out [⁵]. This plane was superior to FG4A in not only the output but also the weight, and, as for the vehicle weight of P-1, as for the L4-1 deployment type, it was 1,178 kg for 1,230 kg of FG4A deployment types.

Deployment car model

• P-1 (Subaru .1500)

Basic specifications

• A kind: Inline four-cylinder 4 strokes Water-cooled
• Displacement volume: 1,485cc
• A valve train: OHV
• Max power: 55PS/4,400rpm
• The biggest torque: 11.0kgf·m/2,700rpm

Footnote, source

1. ^ "shaft of light p.90-91 of the Prince car"
2. It was ^ old Nakajima airplane Omiya mill and produced motors for navy for the wartime
3. It is said that improvement of the productivity was demanded from the person concerned of ^ particularly 誉
4. ^ "history of Fuji auto industry technology human being" p.57-62
5. As for the number of the production of ^ increase prototypes, the number of the production of the 30 engines, L4-1 of P-1-based model was nine

References

• On "history of Fuji Heavy Industries technology human being" Fuji Heavy Industries Ltd. editing Committee, three trees Publishing, October 25, 2005, it is a first edition. ISBN 978-4,895,224,635。
• On Yoji Katsuragi "shaft of light grand prix publication of the Prince car", October 22, 2003, it is a first edition. ISBN 978-4,876,872,510。

Allied item

• Fuji Heavy Industries
• Subaru .1500

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