Difference between revisions of "6B3x family"

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The '''6B3x family''' of engines are 60 degree angle V6 engines produced by Mitsubishi in [[Shiga|Shiga]], Japan. It features an all-alloy design with overhead camshafts. So far only the 6B31 has been released.
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{{Infobox engine
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| name          = 6B3x
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| image        = [[Image:6B31 Pallet.jpg|250px]]
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| caption      =
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| manufacturer  = Mitsubishi Motors
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| aka          =
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| production    =
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| predecessor  = [[6G7x family|6G7x]]
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| successor    = 
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| configuration = V6
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| displacement  =
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| bore          =
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| stroke        =
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| block        = Die-cast aluminum
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| head          = Die-cast aluminum
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| valvetrain    = Belt-driven SOHC with 24 valves and MIVEC
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| compression  =
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| supercharger  =
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| turbocharger  =
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| fuelsystem    =
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| management    =
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| fueltype      =
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| oilsystem    =
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| coolingsystem =
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| idle          =
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| redline      =
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| power        =
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| specpower    =
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| torque        =
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| length        =
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| width        =
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| emissions level =
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}}
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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.
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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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The weight of the engine has been reduced by the use of an aluminum block, heads and oil pan along with resin rocker covers, resin intake manifold and a guideless dipstick to reduce weight by 25 Kg compared to the [[6G7x family|3.0L 6G72]]. Mitsubishi claims the engine is only 5Kg heavier than the [[4G64|four cylinder engine]] used in the [[1g_Outlander|First Generation Outlander]].
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So far only the 3.0 Litre 6B31 has been released.
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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>
  
 
==6B31==
 
==6B31==
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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.
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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.
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In Australia it has been used in the ZG and ZH Outlander.
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===Specifications===
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{|cellpadding="3" align="left"
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|'''Displacement'''
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|2998 cc (3.0 Litres)
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|-
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|'''Bore'''
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|87.6mm
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|-
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|'''Stroke'''
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|82.9mm
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|-
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|'''Compression Ratio'''
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|9.5:1
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|-
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|'''MIVEC Switch'''
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|4750 rpm
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|-
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|'''Intake Runner Switch'''
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|3600 rpm
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|-
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|'''Output'''
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|162 kW @ 6250 rpm, 276 Nm @ 4000 rpm
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|-
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|}
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{{Clear}}
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==Gallery==
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<Gallery>
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File:6B31.jpg|6B31 Engine in a Mitsubishi Outlander
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File:6B31 Power.png|Power/Torque Graph for the 6B31
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</Gallery>
  
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In Australia it has been used in the ZG Outlander.
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==References==
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<references />
  
 
{{Mitsubishi engines}}
 
{{Mitsubishi engines}}
  
 
[[Category:Other Mitsubishi Technical]]
 
[[Category:Other Mitsubishi Technical]]
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[[Category:6B3x Engine]]

Latest revision as of 11:32, 20 September 2020

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