- GM High Feature engine
Infobox Automobile engine
name=High Feature V6
aka=Alloytec V6
manufacturer=General Motors
production=2004–predecessor=54° V6
class=DOHC 60° 24-valve V6
similar=Chrysler SOHC
Chrysler Phoenix
Ford Cyclone
Honda J-series
Nissan VQ
Toyota GRThe 3600 LY7 (and derivative LP1) are members of General Motors' new High Feature (or HFV6) engine family of modern
DOHC V6 s. This new family of engines was introduced in 2004 with theCadillac CTS .Holden sells the HFV6 under the name Alloytec. The block was designed to be expandable from 2.8 L to 4.0 L.It is a 60° 24-valve design with aluminum block and heads and Sequential Electronic Fuel Injection. Most versions feature continuously-variable cam phasing on both intake and exhaust valves and electronic throttle control. Other features include piston oil-jet capability, forged crankshaft and connecting rods, a variable intake manifold, twin knock control sensors and coil-on-plug ignition. It was developed by the same international team responsible for the Ecotec, including the
Opel engineers responsible for the 54° V6, with involvement with design and development engineering from Ricardo, Inc.High Feature V6 engines are produced at Fisherman's Bend in
Port Melbourne ,Australia ,St. Catharines inCanada , andFlint Engine South inFlint, Michigan .History
The HFV6 was first designed, tested and produced in a joint team by
Cadillac andHolden . A majority of design into the new alloy construction, transmission pairing and first use in production were all undertaken in Detroit (and manufactured in St Catherines). Holden had the job of developing smaller engines (Holden 3.2, LP1 and LP9 Turbo) as well as their own Holden HFV6 (called the Alloytec V6) for local models.Cadillac and Holden both tested variations of these engines in US and Australia.
North America and Australia remain the only two places that manufacture the HFV6.
Alfa Romeo
Alfa Romeo uses the High Feature engine design, though with many modifications, as the JTS V6. The Alfa unit features lean-burn technology as on many other engines from the company. It displaces 3.2 L (3195 cc) and has an output of convert|256|hp|kW PS|lk=on|abbr=on at 6200 rpm and convert|237|ftlbf|Nm|abbr=on|lk=on torque, withgasoline direct injection allowing a highcompression ratio of 11.25:1. The engine is also equipped with cam-phasing on both inlet and exhaust side, thus the name "TwinPhaser".Alfa Romeo only acquires the core designs and productions of the HFV6. It is then taken to their factory and modified for their performance, fuel economy and soundtrack.
Applications:
* 2005Alfa Romeo 159
* 2006 Alfa Romeo 159 Sportwagon
* 2005Alfa Romeo Brera
* 2006 Alfa Romeo SpiderHolden 3.2
Holden has built its own 3.2 L version of the High Feature engine in Australia. Branded with the Alloytec name like the 3.6 L version, this version produces Convert|227|hp|kW|0|abbr=on at 6600 rpm and auto ftlbf|219 at 3200 rpm.Applications:
* 2007Holden Captiva
* 2007Opel Antara LY7
The 3.6 L (3564 cc) LY7 version was introduced in the 2004
Cadillac CTS sedan. It has a 10.2:1 compression ratio and produces Convert|255|hp|kW|0|abbr=on at 6200 rpm and auto ftlbf|252 at 3100 rpm. The bore is 3.70 in (94.0 mm) and the stroke is 3.37 in (85.6 mm). In some applications, including theBuick LaCrosse andHolden Commodore , the LY7 has an output of 235 to 262 hp (175 to 195 kW) and 225 to 251 ft·lbf (305 to 340 N·m) depending on the vehicle induction and exhaust system designs. Selected models also include variable intake. The engine weighs convert|370|lb|abbr=on as installed.This engine is produced in North America and Australia.
On the Lambda crossover SUVs (
Saturn Outlook ,GMC Acadia , andBuick Enclave ) it produces Convert|275|hp|kW|0|abbr=on and auto ftlbf|251. The Holden Alloytec version has been modified to meetEuro III emissions standards and has an output of 262 hp (195 kW) and 251 ft-lbf (340 N-m). A Convert|235|hp|kW|0|abbr=on version able to run on autogas (LPG) has also been produced by Holden in Australia.Applications:
* 2004Cadillac CTS
* 2004Buick Rendezvous CXL/Ultra
* 2004Cadillac SRX
* 2004Holden VZ Commodore
* 2005Buick LaCrosse CXS
* 2005Cadillac STS
* 2006Holden VE Commodore
* 2006Holden WM Statesman
* 2006Holden WM Caprice
* 2007Saturn Aura XR
* 2007Saturn Outlook
* 2007Pontiac G6 GTP
* 2007GMC Acadia
* 2008Buick Enclave
* 2008Chevrolet Malibu
* 2008Saturn Vue XR
* 2008Pontiac G8
* 2008Chevrolet Equinox Sport
* 2008Pontiac Torrent GXP
* 2008Pontiac G6 GXPLLT
The 3.6 liter (3564 cc) LLT is a direct injected version of the LY7. It was first unveiled in May 2006, and was claimed to have 15 per cent greater power, 8 per cent greater torque, and 3 per cent better fuel economy than its port-injected counterpart. It has a
compression ratio of 11.4:1, and has been certified by the SAE to produce convert|302|hp|kW at 6300 rpm and auto ftlbf|272 of torque at 5200 rpm on regular unleaded (87 octane) gasoline. This engine debuted on the 2008Cadillac STS and CTS. [ [http://www.edmunds.com/insideline/do/Features/articleId=119071?tid=edmunds.il.home.photopanel..2.*#5 Detroit Auto Show: 2008 Cadillac CTS ] ] [ [http://news.windingroad.com/body-stylesmarket-segment/sedans/cadillac-ups-sts-horsepower-rating-to-302/ Uncategorized | NextAutos.com and Winding Road ] ] GM will use a LLT in all 2009 Lambda-derivedcrossover SUV s to allow class-leading fuel economy in light of the newCorporate Average Fuel Economy (CAFE) standards. In the Lambdas, LLT engine produces convert|286|hp|kW and auto ftlbf|255 of torque. [ [http://eogld.ecomm.gm.com/NASApp/domestic/graytabcontroller.jsp?graytabtype=1&rpoid=39719&vehicleid=6650§ion=engineAxle Engine - Power Curve ] ] [ [http://eogld.ecomm.gm.com/NASApp/domestic/graytabcontroller.jsp?graytabtype=1&rpoid=36105&vehicleid=6795®ionID=1§ion=oi_def Engine - Power Curve ] ] [ [http://eogld.ecomm.gm.com/NASApp/domestic/graytabcontroller.jsp?graytabtype=1&rpoid=40162&vehicleid=6858§ion=engineAxle Engine - Power Curve ] ]Applications:
* 2008Cadillac CTS
* 2008Cadillac STS
* 2009Chevrolet Traverse [ [http://www.autoshow.ca/2008/downloads/SHOWBIZ-JAN08.pdf SHOWBIZ JAN08.qxd (Page 1) ] ]
* 2009Saturn Outlook
* 2009GMC Acadia
* 2009Buick Enclave Future Applications:
* 2009Holden Commodore
* 2010Chevrolet Camaro LCS
The 3.6 L (3564 cc) LCS is derived from the direct-injected LLT for use in hybrids, using the two-mode system [ [http://eogld.ecomm.gm.com/NASApp/domestic/proddesc.jsp?year=2009®ionID=1&divisionID=10&type=0&vehicleID=6861§ion=engineAxle&page=5&butID=3 Model Information - Online Ordering Guide ] ] . Differences from the LLT include a slightly lower compression ratio, 11.3:1, and lower power and torque peaks. It will debut in the 2009 Saturn Vue Hybrid, where it will make Convert|262|hp|kW|0|abbr=on at 6100 rpm and auto ftlbf|250 of torque at 4800 rpm. [http://media.gm.com/us/powertrain/en/product_services/2009a/HPT%20Library/HFV6/2009%2036L%20Hybrid_SAE.pdf]
Applications:
* 2009Saturn Vue HybridLP1
A 2.8 L (2792 cc) LP1 variant was introduced in the 2005
Cadillac CTS . It has a 3.50 in (89.0 mm) bore, a 2.94 in (74.8 mm) stroke, and a 10.0:1 compression ratio. It generates Convert|210|hp|kW|0|abbr=on at 6500 rpm, and auto ftlbf|194 at 3300 rpm.Applications:
* 2005–2007Cadillac CTS LP9 Turbo
The LP9 is a 2.8 L turbocharged version is used for the
Saab 9-3 and other GM vehicles. It produces Convert|255|hp|kW|0|abbr=on EEC at 5500 rpm and auto ftlbf|258 between 1800 and 5000 rpm. It has the same bore and stroke as the naturally-aspirated LP1, however the compression ratio is reduced to 9.5:1. There is also other variants available, with Convert|230|hp|kW|0|abbr=on EEC and auto ftlbf|280 EEC. GM Powertrain Sweden (Saab Automobile Powertrain) has been responsible for the turbocharging of the engine. The engine is built in Port Melbourne, Australia.Applications:
* 2007Cadillac BLS
* 2006Opel Vectra
* 2006Opel Signum
* 2009Opel Insignia
* 2006Saab 9-3 Suzuki
Suzuki builds the High Feature V6 at itsSagara, Japan plant for theSuzuki XL-7 SUV under license fromGeneral Motors . Displacing 3.6 L, this engine produces Convert|252|hp|kW|0|abbr=on at 6500 rpm and auto ftlbf|243 at 2300 rpm.Applications:
* 2007Suzuki XL-7 V12
On March 21, 2007 it was reported by
AutoWeek that GM is planning to develop a 60-degreeV12 based on this engine family to power the top version ofCadillac 's upcoming flagship sedan. This engine would essentially consist of two 3.6 L High Feature V6s attached end-to-end on a singlecrankshaft , and would feature such high-end technologies asdirect injection andcylinder deactivation . If so, the engine would displace 7.2 liters, and produce approximately Convert|600|hp|kW|0|abbr=on and auto ftlbf|540 of torque. Development of the engine is reportedly being conducted in Australia by Holden. [http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/story/03-21-2007/0004550743&EDATE=]See also
*
List of GM engines
*GM High Value engine
*Cadillac Northstar engine
*GM 3500 engine References
External links
* [http://www.autospeed.com/cms/A_2264/article.html Technical article from AutoSpeed]
* [http://www.cadillac.com/cadillacjsp/model/gallery.jsp?model=cts/ Cadillac CTS Homepage]
* [http://www.caddyinfo.com/ Caddyinfo.com] - Cadillac Discussion Forum, How-To, and Technical Information
* [http://subscribers.wardsauto.com/ar/new_gm_engine/ GM Unveils New Direct Injection V-6] - Ward's Auto World.
*http://www.webwombat.com.au/motoring/news_reports/gmengine.htm
*http://www.autoshow.ca/2008/downloads/SHOWBIZ-JAN08.pdf
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