Difference between revisions of "Orion"

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The '''Orion''' (or '''4G1x''') family of engines are inline 4 cylinder engines which were designed by Mitsubishi to replace their [[Neptune]] (4G4x) series. All have cast iron cylinder blocks, alloy heads and overhead camshafts driven by a belt.
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{{Infobox engine
The Orion series was first introduced in the Mitsubishi Colt in 1978. The Orion ranges from 1.2 to 1.6 Litres in capacity.  
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| name          = Orion (4G1x)
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| image        =
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| caption      =
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| manufacturer  = Mitsubishi Motors
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| aka          = Alpha (Hyundai nomenclature)
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| production    = 1977 - present
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| predecessor  = [[Neptune|Neptune (4G4x)]]
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| successor    = [[4A9x family|4A9x]]
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| configuration = Inline 4
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| displacement  =
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| bore          =
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| block        = Cast Iron
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| head          = Aluminum alloy
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| valvetrain    = SOHC/DOHC
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| supercharger  =
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}}
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The '''Orion''' (or '''4G1x''') family of engines are inline 4 cylinder engines which were designed by Mitsubishi to replace their [[Neptune]] (4G4x) series. All have cast iron cylinder blocks, alloy heads and overhead camshafts driven by a belt. Displacement ranges from 1.2 to 1.6 Litres.
  
As with the [[Sirius family]] Hyundai also produced and used these engines. Hyundai's name for the family was Alpha.
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The Orion series was first introduced in the Mitsubishi Colt in 1977 and production continues today earning it the distinction of being one of the longest lived Japanese engines ever produced. The engine has seen duty in a range of other makes including Hyundai (who call it the Alpha), Proton, Smart, Haval and Geely.
  
 
==4G11==
 
==4G11==
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==4G15==
 
==4G15==
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[[Image:Proton Saga 4G15.jpg|right|200px|thumb|Carbureted 4G15 in a Proton Saga]]
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[[Image:4G15 DOHC.jpg|right|200px|thumb|4G15 DOHC]]
 
The 4G15 is the most common of all the Orion engines. It is a 1.5 Litre engine with a displacement of 1468cc. Its bore and stroke is 75.5x82.0mm and is avaiable in SOHC 2 valve per cylinder, SOHC 3 valve per cylinder, DOHC 3 valve per cylinder and DOHC 4 valve per cylinder forms. SOHC versions use a 9.2:1 compression ratio, while the DOHC versions use a 9.5:1 compression ratio.
 
The 4G15 is the most common of all the Orion engines. It is a 1.5 Litre engine with a displacement of 1468cc. Its bore and stroke is 75.5x82.0mm and is avaiable in SOHC 2 valve per cylinder, SOHC 3 valve per cylinder, DOHC 3 valve per cylinder and DOHC 4 valve per cylinder forms. SOHC versions use a 9.2:1 compression ratio, while the DOHC versions use a 9.5:1 compression ratio.
  
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===4G15 DOHC 16v===
 
===4G15 DOHC 16v===
 
In Australia, the 16 valve DOHC 4G15 was used in the Hyundai Accent and Kia Rio.
 
In Australia, the 16 valve DOHC 4G15 was used in the Hyundai Accent and Kia Rio.
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===4G15 DOHC 16v MIVEC===
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In Australia the 16 valve DOHC 4G15 was used in the Mitsubishi [[Colt (RG)|Colt RG]] in 2004 and 2005where it produced 72kW @ 6,000 rpm and 132Nm @ 4,250 rpm.
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===4G15 DOHC 16v MIVEC Turbo===
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In Australia the 16 valve DOHC Turbo 4G15 was used in the Mitsubishi [[Colt (RG)|Colt RG]] Ralliart where it produced 113kW @ 6,000 rpm and 210Nm @ 3,500 rpm and the [[Colt (RZ)|Colt RZ Cabriolet]] Turbo where it output the same torque but 3kW less power.
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{{clear}}
  
 
==4G17==
 
==4G17==
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==4G19==
 
==4G19==
Mitsubishi introduced the 4G19 in 2002 to power the seventh generation [[Colt RG|Colt]] (in markets other than Australia). The 1.3 Litre engine featured DOHC with 4 valves per cylinder and MIVEC. It outputs 66 kW at 5600 rpm and 121 Nm at 4250 rpm.
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[[Image:2003 Mitsubishi Colt 4G19 engine 1.jpg|left|200px|thumb|4G19 as used in a 2003 Mitsubishi Colt]]Mitsubishi introduced the 4G19 in 2002 to power the seventh generation [[Colt (RG)|Colt]] (in markets other than Australia). The 1.3 Litre engine featured DOHC with 4 valves per cylinder and MIVEC. It outputs 66 kW at 5600 rpm and 121 Nm at 4250 rpm.
  
The 4G19 displaces 1343cc and uses a 75.bore and stroke.
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The 4G19 displaces 1343cc and uses a 75.5mm x 75mm bore and stroke.
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{{clear}}
  
 
==G4ED==
 
==G4ED==

Latest revision as of 01:25, 14 September 2020