Difference between revisions of "C20NE"

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{{Unreferenced|date=June 2008}}
[[Image:C20NE T001.jpg|right|thumb|250px|Opel Calibra's C20NE engine tuned up to {{convert|142|bhp|kW PS|0|abbr=on}}.]]
{{Infobox Automobile engine
The '''C20NE''' is a [[Family II]] fuel injected, four cylinder engine developed by [[General Motors]] in the late 80's.  It is essentially very similar to the [[C20XE]], but has a simpler cylinder head design which features 2 valves per cylinder (rather than the four of the [[C20XE]]) and single overhead camshaft.  For this reason, the powerplant is commonly referred to as '8 Valve'.  The C20NE was factory fitted to early [[Opel Astra]] and [[Vauxhall Cavalier]] models, but also found its way into the entry spec [[Calibra]]. Subsequently, the fitment of the C20NE engine permitted the use of an automatic transmission, particularly in the [[Calibra]] where the [[C20XE]] developed excessive amounts of power and torque for the automatic box.  Although lacking the power of its bigger siblings, the C20NE has proven to be an economical and robust engine, with many examples still running flawlessly today.
|name=54° V6
|aka=Ellesmere V6
|manufacturer=[[General Motors Corporation|General Motors]]
|production=1994–2004
|predecessor=[[Opel Straight-6 engine|Opel Straight-6]]
|successor=[[GM High Feature engine|High Feature V6]]
|class=[[DOHC]] 54° [[Multi-valve|24-valve]] [[V6 engine|V6]]
|similar=[[Chrysler LH engine|Chrysler LH V6]]<br>[[Mazda K engine]]<br>[[Nissan VQ engine]]<br>[[Nissan VE engine]]<br>[[Suzuki H engine]]<br>[[Toyota VZ engine]]
}}
[[General Motors Corporation|General Motors]]' [[Opel]] division in Europe designed a compact [[V6]] engine with an odd 54° vee angle. It was an iron block/aluminum head [[DOHC]] design with 4 valves per cylinder. All 54° engines are assembled at [[Ellesmere Port]] in [[England]].   


This engine was used in the American versions of these models as well. The engine was reworked substantially between the 3.0&nbsp;L L81 and 3.2&nbsp;L LA3, but the bore centers and deck height were retained. In its 3.0 L form, this engine has a notable history for recalls of all units installed in U.S. Cadillac Cateras due to problems with timing belt tensioner bearing failures, which could cause catatrophic damage to the engine with its interference design.   
==Engine code==
The engine code (C20NE) describes the engines specifications<ref>{{cite web | title = "Engine Codes Explained" | work = ''Topbuzz Website'' | year = 2002 | accessdate = 2007-05-25 | url = http://topbuzz.co.uk/info/engine_codes/engine_codes.htm}}</ref>.   


==L81 3.0==
*C  -  Emissions Classification
The '''L81''' was used [[longitudinal engine|longitudinal]]ly in the [[Opel Omega]], [[Cadillac Catera]] and [[transverse engine|transverse]]ly in the [[Saturn L-Series]], [[Saturn Vue]] and [[Saab 9000]]. Bore and stroke were 86&nbsp;mm (3.38&nbsp;in) × 85&nbsp;mm (3.35&nbsp;in), for 2962&nbsp;cc (180.75&nbsp;cu&nbsp;in) displacement. with 10.8:1 compression, the engine produced between {{Convert|182|hp|kW|0|abbr=on}} and {{Convert|208|hp|kW|0|abbr=on}} with {{auto ftlbf|190}} to {{auto ftlbf|199}}.
*20 - Displacement (2000CC)
*N  -  Compression Threshold (9.0:1 - 9.5:1)
*E  -  Fuel System (Electronic - Multipoint, Sequential)


Saab's [[Turbocharger|turbocharged]] version for [[Saab 9-5]] (the X30) produced {{Convert|200|hp|kW|0|abbr=on}} at 5000&nbsp;rpm and {{auto ftlbf|229}} at 2500-4000&nbsp;rpm. [[Saab Automobile|Saab]] equipped the engine with special version of [[Saab Direct Ignition]].
==Engine characteristics==
 
{| class="wikitable"
This engine was used in:
! '''Engine'''
* 1994 [[Opel Omega]]
| '''C20NE'''
* 1996-1999 [[Opel Sintra]]
|-
* 1997-2001 [[Cadillac Catera]]
!Configuration
* 2000-05 [[Saturn L-Series]]
|Inline, SOHC, Transverse 4 Cylender
* 2002-03 [[Saturn Vue]]
|-
* [[Saab 9-5]]
!Displacement
* [[Saab 9000]]
|1998cc (121.88 cu in)
 
|-
==2.5==
!Bore 
[[Saab Automobile|Saab]] used a 2.5&nbsp;L version of this engine in the [[Saab 900 (NG)]] from 1994 and [[Opel]] used it in many different models. It produced {{Convert|170|hp|kW|0|abbr=on}} and {{auto ftlbf|167}}.
|86.0mm (3.4in)
 
|-
This engine was used in:
!Stroke 
* Opel Vectra A
|86.0mm (3.4in)
* Opel Vectra B
|-
* Opel Calibra
!Power 
* Opel Omega B
|115 BHP @ 5200 RPM
* Saab 900 NG
|-
!Torque
|170 NM (125 lb/ft) @ 2600 RPM
|-
!Max rpm
|6400
|-
!Compression ratio
|9.2:1
|-
!Valve-Train
|Belt Driven, 2 Valves per Cylender
|-
!Engine Management
|Bosch, Motronic M1.5 / Motronic M1.5.2<ref>{{cite web | title = "Modules - Liste" | work = "ODB-2 Website"| year =  2005 | accessdate = 2008-05-25 | url = http://www.obd-2.de/liste.xls}}</ref>.
|-
!Firing order
|1-3-4-2
|}


==References==
{{reflist}}


==2.6==
This engine was used in:
* Opel Omega B
* Opel Vectra B<br />
==LA3 3.2==
The 3.2&nbsp;L '''LA3''' is a complete redesign of the L81 for the [[Cadillac CTS]] and [[Opel Omega]] B. It had an iron block and used aluminum [[DOHC]] heads with fixed (non-variable) valve timing, and a [[VLIM|variable intake]]. The bore was 87.5&nbsp;mm and it had an {{Auto mm|88|1}} stroke. This was a 3175cc (194&nbsp;cu&nbsp;in) engine and produced {{Convert|220|hp|kW|0|abbr=on}} and {{auto ftlbf|218}}. Production started in July 2001, but the engine was replaced by the new [[GM High Feature engine]] starting in 2004.
This engine was used in:
* 2003-2004 [[Cadillac CTS]]
* Opel Omega B
* Opel Vectra C
* Opel Signum
== See also ==
[[X25XE|X25XE/X30XE]] - detailed information about 2.5 and 3.0 motors
==References==
{{Reflist}}


[[Category:GM engines|54-Degree V6]]
[[Category:GM engines|2.0L]]


[[it:GM V6-54 Gradi]]
[[el:C20ne]]
[[ja:GM・54度V6エンジン]]

Revision as of 15:28, 3 February 2009

Opel Calibra's C20NE engine tuned up to 142 bhp (106 kW; 144 PS).

The C20NE is a Family II fuel injected, four cylinder engine developed by General Motors in the late 80's. It is essentially very similar to the C20XE, but has a simpler cylinder head design which features 2 valves per cylinder (rather than the four of the C20XE) and single overhead camshaft. For this reason, the powerplant is commonly referred to as '8 Valve'. The C20NE was factory fitted to early Opel Astra and Vauxhall Cavalier models, but also found its way into the entry spec Calibra. Subsequently, the fitment of the C20NE engine permitted the use of an automatic transmission, particularly in the Calibra where the C20XE developed excessive amounts of power and torque for the automatic box. Although lacking the power of its bigger siblings, the C20NE has proven to be an economical and robust engine, with many examples still running flawlessly today.

Engine code

The engine code (C20NE) describes the engines specifications[1].

  • C - Emissions Classification
  • 20 - Displacement (2000CC)
  • N - Compression Threshold (9.0:1 - 9.5:1)
  • E - Fuel System (Electronic - Multipoint, Sequential)

Engine characteristics

Engine C20NE
Configuration Inline, SOHC, Transverse 4 Cylender
Displacement 1998cc (121.88 cu in)
Bore 86.0mm (3.4in)
Stroke 86.0mm (3.4in)
Power 115 BHP @ 5200 RPM
Torque 170 NM (125 lb/ft) @ 2600 RPM
Max rpm 6400
Compression ratio 9.2:1
Valve-Train Belt Driven, 2 Valves per Cylender
Engine Management Bosch, Motronic M1.5 / Motronic M1.5.2[2].
Firing order 1-3-4-2

References

  1. ↑ ""Engine Codes Explained"". 'Topbuzz Website'. 2002. http://topbuzz.co.uk/info/engine_codes/engine_codes.htm. Retrieved on 2007-05-25. 
  2. ↑ ""Modules - Liste"". "ODB-2 Website". 2005. http://www.obd-2.de/liste.xls. Retrieved on 2008-05-25. 

el:C20ne

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