Editing GM Ecotec engine (section)

===2.0 LNF (Z20NHH Opel) ===
[[File:Car show 013.jpg|right|thumb|250px|Ecotec LNF in a [[Pontiac Solstice]]]]
A turbocharged [[Gasoline direct injection|direct-injected]] (redubbed ''Spark Ignition Direct Injection'') Ecotec was introduced in the 2007 [[Pontiac Solstice|Pontiac Solstice GXP]] and [[Saturn Sky|Saturn Sky Red Line]]. In these applications, the engine is mounted longitudinally. Displacement is {{cvt|1998|cc|L|1|order=flip}} with a square {{cvt|86|mm|in}} bore and stroke. Compression is 9.2:1 and maximum boost is {{cvt|1.4|bar|psi|order=flip}}, delivering {{cvt|260|hp|kW}} at 5300&nbsp;rpm and {{cvt|260|lbft|N.m}} of torque from 2500 to 5250&nbsp;rpm. Engine redline is at 6300&nbsp;rpm and premium fuel is recommended. The sodium filled exhaust valves were based on technology developed for the Corvette V8 powertrains. The sodium fuses and becomes a liquid at idle, which improves thermal conductivity and draws heat away from the valve face and valve guide towards the stem to be cooled by the engine oil circulating in this area. The camshaft-driven direct injection systems pressurizes the fuel to {{cvt|31|bar|psi|order=flip}} at idle, and up to {{cvt|155|bar|psi|order=flip}} at wide-open throttle. The "Gen II" block is similar to the 2.4&nbsp;L and also features [[Variable valve timing|VVT]] technology. The Gen II block was developed using data from racing programs and computer simulations. The bore walls and bulkheads were strengthened with a weight increase of {{cvt|2.5|lb}}. The coolant jackets were expanded to improve heat transfer, resulting in a coolant capacity increase of 0.5&nbsp;liters.

In December 2008, GM released a Turbo Upgrade Kit for the LNF engine which increases horsepower to {{cvt|290|hp|kW}} and torque to up to {{cvt|340|lbft|N.m}}, depending on the model. The kit retailed for $650 and includes remapped engine calibration and upgraded 3 MAP sensors. The kit is covered by the cars' existing GM warranties.<ref>{{cite web|author= Chris Shunk |url=http://www.autoblog.com/2008/12/18/gm-releases-turbo-upgrade-kit-for-solstice-gxp-sky-redline-and/ |title=GM releases turbo upgrade kit for Solstice GXP, Sky Redline and HHR SS |publisher=Autoblog.com |access-date=2012-01-24}}</ref> Boost pressure was increased from 18psi (1.24 bar) to 21psi (1.44 bar).

Unique LNF features<ref>{{cite web|url=http://autoweek.com/apps/pbcs.dll/article?AID=/20060403/FREE/60403004/1024/LATESTNEWS|title=Big Power, Small Package|work=[[AutoWeek]]|access-date=April 4, 2006}}</ref> include:
* a twin-scroll [[turbocharger]]
* cam-driven high-pressure [[gasoline direct injection]] fuel system
* dual-camshaft continuously [[variable valve timing]]
* [[sodium]]-filled stainless steel [[Inconel]] exhaust [[poppet valve|valves]]
* low-friction cast aluminium pistons with oil squirters
* forged steel crankshaft
* forged steel connecting rods
* cast stainless steel exhaust manifold
* foam-cast Gen2 block
* Bosch injectors (0 261 500 055) or slightly larger (0 261 500 089) injectors in 2010 models

This engine is used in:
{| class="wikitable"
! scope="col" | Year(s)
! scope="col" | Model
! scope="col" | Power
! scope="col" | Torque
|-
| 2007&ndash;2010
| [[Opel GT#Modern Opel GT|Opel GT]]
| {{cvt|264|hp|0}} @ 5300&nbsp;rpm
| {{cvt|264|lbft|Nm|0}} @ 2000&nbsp;rpm
|-
| 2007&ndash;2010
| [[Pontiac Solstice##GXP (2007&ndash;2009)|Pontiac Solstice GXP]]
| {{cvt|260|hp|0}} @ 5300&nbsp;rpm
| {{cvt|260|lbft|Nm|0}} @ 2000&nbsp;rpm
|-
| 2007&ndash;2010
| [[Saturn Sky#Red Line|Saturn Sky Red Line]]
| {{cvt|260|hp|0}} @ 5300&nbsp;rpm
| {{cvt|260|lbft|Nm|0}} @ 2000&nbsp;rpm
|-
| 2008&ndash;2010
| [[Chevrolet HHR#SS Turbocharged|Chevrolet HHR SS]]
| {{cvt|260|hp|0}} @ 5300&nbsp;rpm
| {{cvt|260|lbft|Nm|0}} @ 2000&nbsp;rpm
|-
| 2008&ndash;2010
| [[Chevrolet Cobalt SS#SS Turbocharged|Chevrolet Cobalt SS]]
| {{cvt|260|hp|0}} @ 5300&nbsp;rpm
| {{cvt|260|lbft|Nm|0}} @ 2000&nbsp;rpm
|-
| 2009
| [[Elfin Sports Cars|Elfin T5]]
| {{cvt|264|hp|0}} @ 5300&nbsp;rpm
| {{cvt|259|lbft|Nm|0}} @ 2000&nbsp;rpm
|-
| 2012
| [[Fisker Karma]]
| {{cvt|260|hp|0}} @ 5300&nbsp;rpm
| {{cvt|260|lbft|Nm|0}} @ 2000&nbsp;rpm 
|}