6B3x family - Revision history

Cartman02au at 00:58, 4 January 2026

2026-01-04T00:58:37Z

← Older revision		Revision as of 00:58, 4 January 2026
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	[[Category:6B3x Engine]]		[[Category:6B3x Engine]]
	[[Category:Revised]]		[[Category:Mitsipedia/Revised]]

Cartman02au at 00:26, 4 January 2026

2026-01-04T00:26:12Z

← Older revision		Revision as of 00:26, 4 January 2026
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	\| emissions control =		\| emissions control =
	}}		}}
	The 6B3x family of engines are 60 degree angle V6 engines produced by Mitsubishi in [[Shiga\|Shiga]], Japan. It is an all-alloy design with single overhead camshafts driven by a belt. Valves are actuated by roller rockers with automatic lash adjusters on the exhaust valves only.		The '''6B3x family''' of engines are 60 degree angle V6 engines produced by Mitsubishi in [[Shiga\|Shiga]], Japan. It is an all-alloy design with single overhead camshafts driven by a belt. Valves are actuated by roller rockers with automatic lash adjusters on the exhaust valves only.

	The engine was designed primarily for use in the North American [[2g_Outlander\|Second Generation Outlander]] and is designed to produce plentiful amounts of torque in the low and medium rev range as demanded by an SUV. It achieves this by using [[MIVEC]] for valve timing and lift and a variable length inlet runner manifold.		The engine was designed primarily for use in the North American [[2g_Outlander\|Second Generation Outlander]] and is designed to produce plentiful amounts of torque in the low and medium rev range as demanded by an SUV. It achieves this by using [[MIVEC]] for valve timing and lift and a variable length inlet runner manifold.
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	[[Category:6B3x Engine]]		[[Category:6B3x Engine]]
			[[Category:Revised]]

Cartman02au at 11:01, 3 January 2026

2026-01-03T11:01:55Z

← Older revision		Revision as of 11:01, 3 January 2026
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	==6B31 (prior to 2010)==		==6B31 (prior to 2010)==
	The 6B31 is a 3.0 litre V6 engine. It uses 24-valve single overhead camshafts with [[MIVEC]]. It displaces 2998 cc using a 87.6 mm x 82.9 mm bore and stroke. It has a 9.5:1 compression ratio and produces 162 kW at ~~6250~~ rpm and 276 Nm at ~~4000~~ rpm. Compared to the [[6G7x family\|6G72 24-valve SOHC]] as used in the North American Eclipse GTS the engine weighs 25 Kg less and outputs 7 kW more power but 2 Nm less torque. The engine has a relatively flat torque curve, with 90% of the engine's torque available from just ~~2000~~ rpm.		The 6B31 is a 3.0 litre V6 engine. It uses 24-valve single overhead camshafts with [[MIVEC]]. It displaces 2998 cc using a 87.6 mm x 82.9 mm bore and stroke. It has a 9.5:1 compression ratio and produces 162 kW at 6,250 rpm and 276 Nm at 4,000 rpm. Compared to the [[6G7x family\|6G72 24-valve SOHC]] as used in the North American Eclipse GTS the engine weighs 25 Kg less and outputs 7 kW more power but 2 Nm less torque. The engine has a relatively flat torque curve, with 90% of the engine's torque available from just 2,000 rpm.

	In Australia it has been used in the ZG Outlander.		In Australia it has been used in the ZG Outlander.

Cartman02au at 11:01, 3 January 2026

2026-01-03T11:01:02Z

← Older revision		Revision as of 11:01, 3 January 2026
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	The engine was the last in Mitsubishi's early to mid 2000s 'engine renovation program' following the [[4A9x family\|4A9x]], [[4B1x family\|4B1x]] and [[3B2x family\|3B2x]].<ref>[https://web.archive.org/web/20070929124340/http://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2007/19e_13.pdf Newly Developed V6 MIVEC Engine], Mitsubishi Technical Review, 2007/19 (archived)</ref>		The engine was the last in Mitsubishi's early to mid 2000s 'engine renovation program' following the [[4A9x family\|4A9x]], [[4B1x family\|4B1x]] and [[3B2x family\|3B2x]].<ref>[https://web.archive.org/web/20070929124340/http://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2007/19e_13.pdf Newly Developed V6 MIVEC Engine], Mitsubishi Technical Review, 2007/19 (archived)</ref>

			Mitsubishi discontinued production of the engine in 2021, shifting focus from V6 petrol to [[PHEV]] engines.

	==6B31 (prior to 2010)==		==6B31 (prior to 2010)==

Cartman02au at 10:59, 3 January 2026

2026-01-03T10:59:27Z

← Older revision		Revision as of 10:59, 3 January 2026
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	\|-		\|-
	\|}		\|}
			{{clear}}
	==6B31 (2010 and after)==		==6B31 (2010 and after)==
	In 2010, Mitsubishi released a revised 6B31, replacing the previous dished pistons with flat topped ones increasing the compression ratio to 10.5:1, power to 169kW at the same 6,250 rpm and torque to 291 Nm at a lower 3,750 rpm.		In 2010, Mitsubishi released a revised 6B31, replacing the previous dished pistons with flat topped ones increasing the compression ratio to 10.5:1, power to 169kW at the same 6,250 rpm and torque to 291 Nm at a lower 3,750 rpm.

Cartman02au at 10:59, 3 January 2026

2026-01-03T10:59:11Z

← Older revision		Revision as of 10:59, 3 January 2026
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	The engine was the last in Mitsubishi's early to mid 2000s 'engine renovation program' following the [[4A9x family\|4A9x]], [[4B1x family\|4B1x]] and [[3B2x family\|3B2x]].<ref>[https://web.archive.org/web/20070929124340/http://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2007/19e_13.pdf Newly Developed V6 MIVEC Engine], Mitsubishi Technical Review, 2007/19 (archived)</ref>		The engine was the last in Mitsubishi's early to mid 2000s 'engine renovation program' following the [[4A9x family\|4A9x]], [[4B1x family\|4B1x]] and [[3B2x family\|3B2x]].<ref>[https://web.archive.org/web/20070929124340/http://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2007/19e_13.pdf Newly Developed V6 MIVEC Engine], Mitsubishi Technical Review, 2007/19 (archived)</ref>

	==6B31==		==6B31 (prior to 2010)==
	The 6B31 is a 3.0 litre V6 engine. It uses 24-valve single overhead camshafts with [[MIVEC]]. It displaces 2998 cc using a 87.6 mm x 82.9 mm bore and stroke. It has a 9.5:1 compression ratio and produces 162 kW at 6250 rpm and 276 Nm at 4000 rpm. Compared to the [[6G7x family\|6G72 24-valve SOHC]] as used in the North American Eclipse GTS the engine weighs 25 Kg less and outputs 7 kW more power but 2 Nm less torque. The engine has a relatively flat torque curve, with 90% of the engine's torque available from just 2000 rpm.		The 6B31 is a 3.0 litre V6 engine. It uses 24-valve single overhead camshafts with [[MIVEC]]. It displaces 2998 cc using a 87.6 mm x 82.9 mm bore and stroke. It has a 9.5:1 compression ratio and produces 162 kW at 6250 rpm and 276 Nm at 4000 rpm. Compared to the [[6G7x family\|6G72 24-valve SOHC]] as used in the North American Eclipse GTS the engine weighs 25 Kg less and outputs 7 kW more power but 2 Nm less torque. The engine has a relatively flat torque curve, with 90% of the engine's torque available from just 2000 rpm.

	In Australia it has been used in the ZG ~~and ZH~~ Outlander.		In Australia it has been used in the ZG Outlander.

	===Specifications===		===Specifications===
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	\|-		\|-
	\|'''MIVEC Switch'''		\|'''MIVEC Switch'''
	\|~~4750~~ rpm		\|4,750 rpm
	\|-		\|-
	\|'''Intake Runner Switch'''		\|'''Intake Runner Switch'''
	\|~~3600~~ rpm		\|3,600 rpm
	\|-		\|-
	\|'''Output'''		\|'''Output'''
	\|162 kW @ ~~6250~~ rpm, 276 Nm @ ~~4000~~ rpm		\|162 kW @ 6,250 rpm, 276 Nm @ 4,000 rpm
	\|-		\|-
	\|}		\|}

			==6B31 (2010 and after)==
			In 2010, Mitsubishi released a revised 6B31, replacing the previous dished pistons with flat topped ones increasing the compression ratio to 10.5:1, power to 169kW at the same 6,250 rpm and torque to 291 Nm at a lower 3,750 rpm.

			===Specifications===
			{\|cellpadding="3" align="left"
			\|'''Displacement'''
			\|2998 cc (3.0 Litres)
			\|-
			\|'''Bore'''
			\|87.6mm
			\|-
			\|'''Stroke'''
			\|82.9mm
			\|-
			\|'''Compression Ratio'''
			\|10.5:1
			\|-
			\|'''MIVEC Switch'''
			\|4,750 rpm
			\|-
			\|'''Intake Runner Switch'''
			\|3,600 rpm
			\|-
			\|'''Output'''
			\|169 kW @ 6,250 rpm, 291 Nm @ 3,750 rpm
			\|-
			\|}

	{{Clear}}		{{Clear}}

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	<Gallery>		<Gallery>
	File:6B31.jpg\|6B31 Engine in a Mitsubishi Outlander		File:6B31.jpg\|6B31 Engine in a Mitsubishi Outlander
	File:6B31 Power.png\|Power/Torque Graph for the 6B31		File:6B31 Power.png\|Power/Torque Graph for the 6B31 (pre 2010)
	</Gallery>		</Gallery>

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	{{Mitsubishi engines}}		{{Mitsubishi engines}}

	~~[[Category:Other Mitsubishi Technical]]~~
	[[Category:6B3x Engine]]		[[Category:6B3x Engine]]

Cartman02au at 10:16, 3 January 2026

2026-01-03T10:16:48Z

← Older revision		Revision as of 10:16, 3 January 2026
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	\| manufacturer = Mitsubishi Motors		\| manufacturer = Mitsubishi Motors
	\| aka =		\| aka =
	\| production =		\| production = 2005 - 2021
	\| predecessor = [[6G7x family\|6G7x]]		\| predecessor = [[6G7x family\|6G7x]]
	\| successor =		\| successor =
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	\| head = Die-cast aluminum		\| head = Die-cast aluminum
	\| valvetrain = Belt-driven SOHC with 24 valves and MIVEC		\| valvetrain = Belt-driven SOHC with 24 valves and MIVEC
	\| compression =		\| compression = 9.5:1 (until 2010)<br>10.5:1 (after 2010)
	\| supercharger =		\| supercharger =
	\| turbocharger =		\| turbocharger =

Cartman02au at 11:32, 20 September 2020

2020-09-20T11:32:32Z

← Older revision		Revision as of 11:32, 20 September 2020
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	\| block = Die-cast aluminum		\| block = Die-cast aluminum
	\| head = Die-cast aluminum		\| head = Die-cast aluminum
	\| valvetrain = SOHC with 24 valves and MIVEC		\| valvetrain = Belt-driven SOHC with 24 valves and MIVEC
	\| compression =		\| compression =
	\| supercharger =		\| supercharger =
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	[[Category:Other Mitsubishi Technical]]		[[Category:Other Mitsubishi Technical]]
			[[Category:6B3x Engine]]

Cartman02au at 11:27, 8 December 2018

2018-12-08T11:27:45Z

← Older revision		Revision as of 11:27, 8 December 2018
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	File:6B31 Power.png\|Power/Torque Graph for the 6B31		File:6B31 Power.png\|Power/Torque Graph for the 6B31
	</Gallery>		</Gallery>

			==References==
			<references />

	{{Mitsubishi engines}}		{{Mitsubishi engines}}

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

Cartman02au at 11:26, 8 December 2018

2018-12-08T11:26:58Z

← Older revision		Revision as of 11:26, 8 December 2018
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	So far only the 3.0 Litre 6B31 has been released.		So far only the 3.0 Litre 6B31 has been released.

	The engine was the last in Mitsubishi's early to mid 2000s 'engine renovation program' following the [[4A9x family\|4A9x]], [[4B1x family\|4B1x]] and [[3B2x family\|3B2x]] [https://web.archive.org/web/20070929124340/http://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2007/19e_13.pdf].		The engine was the last in Mitsubishi's early to mid 2000s 'engine renovation program' following the [[4A9x family\|4A9x]], [[4B1x family\|4B1x]] and [[3B2x family\|3B2x]].<ref>[https://web.archive.org/web/20070929124340/http://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2007/19e_13.pdf Newly Developed V6 MIVEC Engine], Mitsubishi Technical Review, 2007/19 (archived)</ref>

	==6B31==		==6B31==