Mitsubishi Saturn engine

From Vero - Wikipedia
Jump to navigation Jump to search

Template:Distinguish Template:More citations needed Template:Use dmy dates Template:Infobox automobile engine The Mitsubishi Saturn or 4G3 engine is series of overhead camshaft (OHC) straight-four internal combustion engines introduced by Mitsubishi Motors and saw first service in the 1969 Colt Galant. Displacement ranges from Template:Cvt, although there was also a rare Template:Convert inline-six version built from 1970 until 1976. The early versions have chain driven valvetrain while the later versions are belt driven and equipped with balance shafts.

4G30

The 4G30 displaces Template:Cvt. It is an 8-valve SOHC design with an aluminium head and iron block. The engine has five main bearings. Power was Template:Cvt.

Bore x Stroke: Template:Cvt

Applications

4G31

The 4G31 displaces Template:Cvt. It is an 8-valve SOHC design with an aluminium head and iron block. The engine has five main bearings. Power was Template:Cvt depending on which carburetor combo was used. An updated version with central-point electronic fuel injection was installed in Mirages and Lancers from 1986 on.<ref name="AR87">Template:Cite book</ref> A version for industrial use has Template:Cvt at 3000 rpm.<ref name=Catvol20>Template:Citation</ref>

Bore x Stroke: Template:Cvt

Applications

4G32

In 1970, the 4G32 was introduced, and it displaces Template:Cvt. It is an eight-valve SOHC design with an aluminium head and iron block. The engine has five main bearings, a cross flow head and a single down draught carburetor. Firing order is 1-3-4-2. The GSR versions used two twin-barrel Mikuni-built Solex carburetors for a total of Template:Cvt (SAE).

File:4G32 EFI.jpg
4G32 ECI engine in a Mitsubishi Mirage

A version with an early iteration of Mitsubishi's MCA lean-burn system (MCA-IIB), fulfilling the intermediate Japanese exhaust regulations for 1975, was called G32A. This was built for less than one year, as the new MCA engine arrived in November 1975. Those with the later, cleaner yet, "MCA-Jet" system were called G32B. Later, the G32B also came in a fuel injected, turbocharged model. For competition, a version of the 4G32 engine was made with a DOHC eight-valve cylinder head, and fitted with two twin-choke Template:Cvt Solex sidedraft carburettors.

Bore x Stroke: Template:Cvt

Template:Hidden begin

Template:Hidden end

4G32T

Turbocharged version of the 4G32.

4G33

The 4G3 displaces Template:Cvt from a Template:Cvt bore and stroke. There was also an MCA-Jet equipped G33B developed to fulfill the 1978 Japanese emissions regulations.

Template:Hidden begin

Template:Hidden end

4G35

The 4G35 displaces Template:Cvt. It is an 8-valve SOHC design with an aluminium head and iron block. The engine has five main bearings. Power was Template:Cvt depending on which carburetor combo was used.

Bore x Stroke: Template:Cvt

Applications:

4G36

The 4G36 displaces Template:Cvt. Template:Cvt bore and stroke.

Applications:

4G37

The 8-valve SOHC 4G37 displaces Template:Cvt.

Bore x Stroke: Template:Cvt

Compression Ratio: 9.5:1

Applications:

By other brands:

6G34

The 6G34, referred to by Mitsubishi as the Saturn 6, is a 12-valve SOHC straight-6 of Template:Cvt displacement.

The 6G34 was used only in the Mitsubishi Debonair Executive from September 1970 to June 1976, and saw very limited production. Effectively, the design was that of the standard Saturn four-cylinder block with two additional cylinders grafted on to replace the KE64.

Applications:

See also

Template:Sister project

References

Template:Reflist

Template:Mitsubishi Motors technologies

Retrieved from "https://wiki.sarg.dev/index.php?title=Mitsubishi_Saturn_engine&oldid=721265"