Thursday, May 26, 2011

The 1st People's Car from Japan. Two stroke Subaru 360:

Subaru 360:  1958- 1971

1958 Subaru 360


With it's engine of just 360cc, you might consider this to be in the microcar class, but
this car did provide room for 4 passengers, albeit small ones and also produced
commercial versions, a flat bed truck and panel van.
Furthermore, the Subaru was an excellently engineered car.
 It was the first car mass produced car to be made by the company.
It's cute styling and shape earned it the nickname 'ladybird'.
It looks a little like the Beetle and also the Fiat 500 of the time.

360 engine


Whilst Dkw, the Pioneers of Two stroke technology, also made their cars front wheel drive,
Subaru followed the VW Beetle with a rear wheel drive, rear engined layout that was also
mounted transversely. Like the Beetle it was also air cooled.
The car taxation policy in Japan at the time ruled that cars with engines of less than
360cc displacement qualified for the lowest taxation bracket, called the Kei class.
The reason this low tax incentive existed was to ease the congestion in Japan's cities
that was growing at an alarming rate. The Kei class was implemented in 1955.
In addition to the engine restriction, to qualify, there were also dimension restraints to
comply with.
Cars had to be no longer than 9 feet, 10 inches.
Owers of K class vehicles were also permitted to park their cars overnight in city
streets, which was forbidden at the time to all other vehicles.

Subaru Sambar Flat bed truck


The Subaru 360 came in at just under 9 feet, 6 inches ( 2990mm) and 356cc, so
it was clearly designed to fit into this class.
It's tiny engine was pretty powerful for these times and the 2 stroke unit developed
16 Hp in its initial format. This added to a low body weight of around 1000 lbs made
the car perform remarkably well given its small engine.

Top speed was 60 mph and it was claimed by Subaru that the car was capable
of returning up to 65 mpg. ( my own feeling here is that the car was undoubtedly
economical, but not to the tune of Subaru's claims)
The decision to use a 2 stroke engine must have been an easy one, given that
two strokes pack twice as much power into the same space as four strokes, and
are also lighter, simpler and cheaper to make.
A four stroke engine of just 360cc would've been a lot slower.

The Subaru was a one piece, monocoque construction which was still unusual and
pretty forward thinking in 1958.
Early models needed their 2 stroke oil premixed with the fuel, of which the fuel cap
doubled as an oil measuring cup
Later models had the 'Subarumatic' automatic oil mixing  lubrication system.
This appears to have been more successful and somewhat simpler than the ill-fated
system made by Dkw in 1961.

Subaru Sambar Minibus



The 360 despite the negative press it got in the Usa, was a well engineered and competent
car that enabled the fledgling Subaru company to get a foothold in the world of car manufacturing.
It spawned a Kei class 'War' that saw rival companies such as Honda and Daihatsu build
alternatives that were spawned on the success of the 360.
What set the Subaru apart and makes it so commendable is the fact that the car was designed
exclusively in-house, from its styling to its mechanics. For a manufacturer new to car making,
it was an excellent achievement. Most car makers using two stroke engines at the time were
either getting their engines from Dkw or had copied Dkw's designs.
In the Post-War period that existed in Japan, there was little innovation and much copying.
This was due to both lack of money for development and a lack of technical expertise.
What the Japanese  became famous for was for first copying or adopting technology,
 then improving it over time.

Interior view of the Subaru 360


To put Subaru's accomplishment in making the 360 into perspective, at the time of the
360's inception, Nissan were producing Austin A50's in Japan under license.
Isuzu and Hino were doing the same with the Hillman Minx and Renault 4CV respectively.
All of these companies would eventually thrive with designs of their own, but not until
later and after they had ' cut their teeth' in manufacturing 'old' Western designs.

1950's Japan was desperately rebuilding itself ( like Europe) after WWII.
Most people couldn't afford a new car, only a motorcycle or Scooter.
The 360 bridged that gap and enabled people in the market for a two wheeler, to buy
a proper car for the first time, such was its competitive pricing.
In this sense, the 360 was the first genuine people's car of Japan.

1967 Subaru 360




1 comment:

  1. Subaru has been experimenting from a long time and initially it wasn't as easy to find Subaru sambar parts as it is now.

    ReplyDelete