Astron - Revision history

Cartman02au at 13:23, 25 September 2020

2020-09-25T13:23:45Z

← Older revision		Revision as of 13:23, 25 September 2020
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	Mitsubishi debuted the '''Astron''' engine in 1972 and over its lifetime ranged in capacity from 1.85 to 2.6 litres. It was the first mass produced engine to feature twin counter-rotating [[balance shaft\|balance shafts]] (dubbed Silent Shaft by Mitsubishi), which were used to dampen rocking and vertical forces in the interest of smoothness.		Mitsubishi debuted the '''Astron''' engine in 1972 and over its lifetime ranged in capacity from 1.85 to 2.6 litres. It was the first mass produced engine to feature twin counter-rotating [[balance shaft\|balance shafts]] (dubbed Silent Shaft by Mitsubishi), which were used to dampen rocking and vertical forces in the interest of smoothness.

	The engine featured "hemispherical" combustion chambers and 8 valves per cylinder in overhead cam configuration. It was designed for use in rear-wheel and four-wheel drive vehicles. The Astron has been used in passenger and commercial vehicles, forklifts and even marine applications. It has also been built in both petrol and [[Astron Diesel\|diesel]] forms.		The engine featured "hemispherical" combustion chambers and 2 valves per cylinder in overhead cam configuration. It was designed for use in rear-wheel and four-wheel drive vehicles. The Astron has been used in passenger and commercial vehicles, forklifts and even marine applications. It has also been built in both petrol and [[Astron Diesel\|diesel]] forms.
	__TOC__		__TOC__
	==4G51==		==4G51==

Cartman02au at 05:19, 23 December 2018

2018-12-23T05:19:23Z

← Older revision		Revision as of 05:19, 23 December 2018
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	\| production =		\| production =
	\| predecessor =		\| predecessor =
	\| successor =		\| successor = [[Astron II]] (2.6L)<BR>[[Sirius]]
	\| configuration = Inline 4		\| configuration = Inline 4
	\| displacement =		\| displacement =

Cartman02au at 11:03, 17 November 2018

2018-11-17T11:03:57Z

← Older revision		Revision as of 11:03, 17 November 2018
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	~~<div style~~=~~"float: right;margin-left:5px;">__TOC__</div>~~		{{Infobox engine
	~~The~~ '''Astron''' engine ~~debuted~~ in ~~late 1974~~ in ~~capacities ranging~~ from 1.85 ~~litres~~ to 2.6 litres. It was the first engine to feature [[balance shaft]] ~~technology~~, which ~~was~~ used to dampen rocking and vertical forces in the interest of smoothness.		\| name = Astron (4G5x)
			\| image =
	~~The engine featured "hemispherical" combustion chambers and 8 valves per cylinder in overhead cam configuration. It was designed for use in rear-wheel and four-wheel drive vehicles.~~		\| caption =
			\| manufacturer = Mitsubishi Motors
	~~The Astron was used in both passenger and commercial vehicles. It was also available in both petrol and diesel forms~~.		\| aka =
			\| production =
			\| predecessor =
			\| successor =
			\| configuration = Inline 4
			\| displacement =
			\| bore =
			\| stroke =
			\| block = Cast Iron
			\| head = Aluminum alloy
			\| valvetrain = SOHC (except for a DOHC race version)
			\| compression =
			\| supercharger =
			\| turbocharger =
			\| fuelsystem =
			\| management =
			\| fueltype =
			\| oilsystem =
			\| coolingsystem =
			\| idle =
			\| redline =
			\| power =
			\| specpower =
			\| torque =
			\| length =
			\| width =
			\| height =
			\| diameter =
			\| weight =
			\| emissions level =
			\| emissions control =
			}}
			Mitsubishi debuted the '''Astron''' engine in 1972 and over its lifetime ranged in capacity from 1.85 to 2.6 litres. It was the first mass produced engine to feature twin counter-rotating [[balance shaft\|balance shafts]] (dubbed Silent Shaft by Mitsubishi), which were used to dampen rocking and vertical forces in the interest of smoothness.

			The engine featured "hemispherical" combustion chambers and 8 valves per cylinder in overhead cam configuration. It was designed for use in rear-wheel and four-wheel drive vehicles. The Astron has been used in passenger and commercial vehicles, forklifts and even marine applications. It has also been built in both petrol and [[Astron Diesel\|diesel]] forms.
			__TOC__
	==4G51==		==4G51==
	A 1.85 Litre Petrol engine with a displacement of 1855cc. It used a 81.0x90.0mm bore and stroke and was used in early [[Galant\|Galants]] and [[Sigma\|Sigmas]].		A 1.85 Litre Petrol engine with a displacement of 1855cc. It used a 81.0x90.0mm bore and stroke and was used in early [[Galant\|Galants]] and [[Sigma\|Sigmas]].

	==4G52==		==4G52==
	A 2.0 Litre petrol engine with a displacement of 1995cc. It used a 84.0x90.0mm bore and stroke. In Australia this engine was used in the Sigma, Scorpion, L200 and L300.		A 2.0 Litre petrol engine with a displacement of 1995cc. It used a 84.0x90.0mm bore and stroke.

			In Australia this engine was used in the Sigma, Scorpion, L200 and L300.

			==4G52 Turbo==
			In 1981, Mitsubishi produced a limited edition [[First_Generation_Sigma\|GH Sigma Turbo]]. The turbocharged Sigma was powered by a 4G52 with Garrett T3 turbocharger producing 8psi boost, Zenith CD175 carburetor and a lower compression ratio of 7.3:1. The engine produced 116 kW and 235Nm of torque. It has the distinction of being the first Australian produced turbocharged engine.

	==4G53==		==4G53==
	A petrol 2.4 Litre engine with a displacement of 2384cc. Using a 88.0x98.0mm bore and stroke it was used in the Challenger and Canter.		A petrol 2.4 Litre engine with a displacement of 2384cc. Using a 88.0x98.0mm bore and stroke it was used in the Challenger and Canter.

	==4G54==		==4G54==
	~~The basis for the later [[1g_Astron_II\|Astron II]] used in the Magna.~~ A 2.6 Litre (2555cc) petrol engine which came in two variants. A standard compression (8.2:1) version and a high compression (9.5:1) version. It uses a 91.1x98.0mm bore and stroke.~~<BR><BR>~~		A 2.6 Litre (2555cc) petrol engine which came in two variants. A standard compression (8.2:1) version and a high compression (9.5:1) version. It uses a 91.1x98.0mm bore and stroke.

	In Australia, the standard compression version was used in GH-GK Sigma, Scorpion, Canter, Express, Pajero, Triton and Mazda B2600 (Ford Courier). The high compression version was used in some GK and GN Sigmas.		In Australia, the standard compression version was used in GH-GK Sigma, Scorpion, Canter, Express, Pajero, Triton and Mazda B2600 (Ford Courier). The high compression version was used in some GK and GN Sigmas.

			This engine became the basis for the [[1g_Astron_II\|Astron II]] used in the Magna.

	{{Mitsubishi Engines}}		{{Mitsubishi Engines}}


	[[Category: Other Mitsubishi Technical]]		[[Category: Other Mitsubishi Technical]]

Cartman02au at 03:49, 30 October 2011

2011-10-30T03:49:30Z

← Older revision		Revision as of 03:49, 30 October 2011
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	In Australia, the standard compression version was used in GH-GK Sigma, Scorpion, Canter, Express, Pajero, Triton and Mazda B2600 (Ford Courier). The high compression version was used in some GK and GN Sigmas.		In Australia, the standard compression version was used in GH-GK Sigma, Scorpion, Canter, Express, Pajero, Triton and Mazda B2600 (Ford Courier). The high compression version was used in some GK and GN Sigmas.
	~~==4D55==~~
	~~2.4 Litre diesel with a 2346cc displacement. Available with or without turbo. The 4D55 has a 91.1x90.0mm bore and stroke. In Australia this engine was used in the L200, L300 and Pajero.~~
	~~==4D56==~~
	~~2.5 Litre diesel with a 2476cc displacement. Available with or without turbo. Uses a 91.0x95.0mm bore and stroke and was fitted to the L300, Pajero and Triton.~~

	~~==4D57==~~
	~~2.6 Litre diesel with a 2607cc displacement and direct injection. Built from 1996 onwards and also known as the Hyundai D4BB.~~

	{{Mitsubishi Engines}}		{{Mitsubishi Engines}}

Cartman02au at 03:40, 30 October 2011

2011-10-30T03:40:18Z

← Older revision		Revision as of 03:40, 30 October 2011
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	<div style="float: right;margin-left:5px;">__TOC__</div>		<div style="float: right;margin-left:5px;">__TOC__</div>
	The '''Astron''' engine debuted in late 1974 in capacities ranging from 1.9 litres to 2.6 litres. It was the first engine to feature [[balance shaft]] technology, which was used to dampen rocking and vertical forces in the interest of smoothness.		The '''Astron''' engine debuted in late 1974 in capacities ranging from 1.85 litres to 2.6 litres. It was the first engine to feature [[balance shaft]] technology, which was used to dampen rocking and vertical forces in the interest of smoothness.

	The engine featured "hemispherical" combustion chambers and 8 valves per cylinder in overhead cam configuration. It was designed for use in rear-wheel and four-wheel drive vehicles.		The engine featured "hemispherical" combustion chambers and 8 valves per cylinder in overhead cam configuration. It was designed for use in rear-wheel and four-wheel drive vehicles.

Cartman02au at 04:06, 29 October 2011

2011-10-29T04:06:48Z

← Older revision		Revision as of 04:06, 29 October 2011
Line 21:		Line 21:
	==4D56==		==4D56==
	2.5 Litre diesel with a 2476cc displacement. Available with or without turbo. Uses a 91.0x95.0mm bore and stroke and was fitted to the L300, Pajero and Triton.		2.5 Litre diesel with a 2476cc displacement. Available with or without turbo. Uses a 91.0x95.0mm bore and stroke and was fitted to the L300, Pajero and Triton.

			==4D57==
			2.6 Litre diesel with a 2607cc displacement and direct injection. Built from 1996 onwards and also known as the Hyundai D4BB.

	{{Mitsubishi Engines}}		{{Mitsubishi Engines}}

Administrator: Protected "Astron" [edit=sysop:move=sysop]

2008-01-18T11:21:18Z

Protected "Astron" [edit=sysop:move=sysop]

New page

<div style="float: right;margin-left:5px;">__TOC__</div>
The '''Astron''' engine debuted in late 1974 in capacities ranging from 1.9 litres to 2.6 litres. It was the first engine to feature [[balance shaft]] technology, which was used to dampen rocking and vertical forces in the interest of smoothness.

The engine featured "hemispherical" combustion chambers and 8 valves per cylinder in overhead cam configuration. It was designed for use in rear-wheel and four-wheel drive vehicles.

The Astron was used in both passenger and commercial vehicles. It was also available in both petrol and diesel forms.

==4G51==
A 1.85 Litre Petrol engine with a displacement of 1855cc. It used a 81.0x90.0mm bore and stroke and was used in early [[Galant|Galants]] and [[Sigma|Sigmas]].

==4G52==
A 2.0 Litre petrol engine with a displacement of 1995cc. It used a 84.0x90.0mm bore and stroke. In Australia this engine was used in the Sigma, Scorpion, L200 and L300.
==4G53==
A petrol 2.4 Litre engine with a displacement of 2384cc. Using a 88.0x98.0mm bore and stroke it was used in the Challenger and Canter.
==4G54==
The basis for the later [[1g_Astron_II|Astron II]] used in the Magna. A 2.6 Litre (2555cc) petrol engine which came in two variants. A standard compression (8.2:1) version and a high compression (9.5:1) version. It uses a 91.1x98.0mm bore and stroke.<BR><BR>

In Australia, the standard compression version was used in GH-GK Sigma, Scorpion, Canter, Express, Pajero, Triton and Mazda B2600 (Ford Courier). The high compression version was used in some GK and GN Sigmas.
==4D55==
2.4 Litre diesel with a 2346cc displacement. Available with or without turbo. The 4D55 has a 91.1x90.0mm bore and stroke. In Australia this engine was used in the L200, L300 and Pajero.
==4D56==
2.5 Litre diesel with a 2476cc displacement. Available with or without turbo. Uses a 91.0x95.0mm bore and stroke and was fitted to the L300, Pajero and Triton.

{{Mitsubishi Engines}}

[[Category: Other Mitsubishi Technical]]