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- Quad_4_engine abstract "The engine family known as the Quad 4 was debuted to the public in the spring of 1987. The Quad 4 was a 2,260.5 cc (2.2605 L; 137.94 cu in) DOHC inline 4-cylinder produced by General Motors' Oldsmobile division. Early television ads touting the new engine's abilities showed video of a limited edition Oldsmobile Calais (called the \"GMO Quad 4\") racing around city streets.The Quad 4 name is derived from the engine's four-valve, four-cylinder layout. The engine was a modern design for its time, using a cast-iron block and an aluminum head. Even though belts were more popular for this purpose on OHC engines at the time, chains were used to time the camshafts to the crankshaft, which were useful because of the interference design of the engine. The water pump is also driven by the timing chain. The Quad 4 was the first wholly domestic regular production DOHC four-cylinder engine designed and built by GM; the only prior DOHC four-cylinder engine offered by GM was the Cosworth Vega, which featured a DOHC head designed by Cosworth in England.First released to the public as regular production option for the 1988 Oldsmobile Cutlass Calais and Pontiac Grand Am, the engine's availability expanded to Buick in late 1988 and Chevrolet in 1990, after which it became a mainstay in GM's lineup until its cancellation after the 2002 model year.Simultaneous to the engine's release in 1988, Oldsmobile attempted to further the Quad 4 name through highly publicized events featuring such cars as the Oldsmobile Aerotech. Another such event was the 1988 Indianapolis 500, when Oldsmobile was chosen to pace the Indy 500 with a convertible version of their Cutlass Supreme, and a pre-production turbocharged Quad 4 was the engine of choice for their pace car. Although it was publicized in 1988 that the Quad 4 was forthcoming in a 180 bhp (130 kW) \"HO\", as well as a 250 bhp (190 kW) turbocharged version (the same engine that was in the pace car that year), GM never released the turbocharged version as an option. Also, the engine in Oldsmobile Aerotech was a purpose-built, turbocharged example; it was solely meant to showcase the capability of the engine's design.After the first couple years of rave reviews of the Quad 4, the automotive press began to criticize it for its NVH (noise/vibration/harshness). At the time, the Quad 4 was generally compared to, or against turbocharged four cylinders, V6s, and occasionally V8s. The first changes of the Quad 4 to address NVH were two rounds of exhaust port size reductions, followed by the addition of balance shafts in 1995. Further changes were made for the 1996 model year when the engine's bore and stroke were changed, and the engine was subsequently redubbed Twin Cam.In addition to the 2,260.5 cc (2.2605 L; 137.94 cu in) DOHC versions, there were also both a short-lived SOHC variant, Quad OHC, available from 1992 to 1994, and the 2,392.3 cc (2.3923 L; 145.99 cu in) Twin Cam from 1996 to 2002. The Twin Cam was replaced by the Ecotec for the 2003 model year.All engines in the Quad 4 family were produced at the Lansing Engine Plant (plant 5) in Delta Township near Lansing, Michigan. The Twin Cam was the last engine that was engineered and produced solely by Oldsmobile; the Aurora V8 and Intrigue V6 shared architecture with the Cadillac Northstar.In recent years, the design has gained a minor following in Hot Rodding circles as a period style engine because it looks similar to a 1930s Offenhauser DOHC design.".
- Quad_4_engine blockAlloy Cast_iron.
- Quad_4_engine coolingSystem Water_cooling.
- Quad_4_engine fuelSystem Fuel_injection.
- Quad_4_engine headAlloy Aluminium.
- Quad_4_engine manufacturer Oldsmobile.
- Quad_4_engine oilSystem Wet_sump.
- Quad_4_engine productionEndYear "2002".
- Quad_4_engine productionStartYear "1987".
- Quad_4_engine successor GM_Ecotec_engine.
- Quad_4_engine thumbnail Quad4-89Calais.jpg?width=300.
- Quad_4_engine wikiPageExternalLink quadfourm.
- Quad_4_engine wikiPageExternalLink overview-LD9.html.
- Quad_4_engine wikiPageExternalLink www.quad4forums.com.
- Quad_4_engine wikiPageID "1088194".
- Quad_4_engine wikiPageLength "16063".
- Quad_4_engine wikiPageOutDegree "132".
- Quad_4_engine wikiPageRevisionID "674075418".
- Quad_4_engine wikiPageWikiLink Aluminium.
- Quad_4_engine wikiPageWikiLink Balance_shaft.
- Quad_4_engine wikiPageWikiLink Bore_(engine).
- Quad_4_engine wikiPageWikiLink Buick.
- Quad_4_engine wikiPageWikiLink Buick_LaCrosse.
- Quad_4_engine wikiPageWikiLink Buick_Skylark.
- Quad_4_engine wikiPageWikiLink Cadillac.
- Quad_4_engine wikiPageWikiLink Camshaft.
- Quad_4_engine wikiPageWikiLink Cast_iron.
- Quad_4_engine wikiPageWikiLink Category:Oldsmobile_engines.
- Quad_4_engine wikiPageWikiLink Chevrolet.
- Quad_4_engine wikiPageWikiLink Chevrolet_Beretta.
- Quad_4_engine wikiPageWikiLink Chevrolet_Cavalier.
- Quad_4_engine wikiPageWikiLink Chevrolet_Cosworth_Vega.
- Quad_4_engine wikiPageWikiLink Chevrolet_Equinox.
- Quad_4_engine wikiPageWikiLink Chevrolet_Malibu.
- Quad_4_engine wikiPageWikiLink Compression_ratio.
- Quad_4_engine wikiPageWikiLink Cosworth.
- Quad_4_engine wikiPageWikiLink Crankshaft.
- Quad_4_engine wikiPageWikiLink Cylinder_block.
- Quad_4_engine wikiPageWikiLink Cylinder_head.
- Quad_4_engine wikiPageWikiLink Cylinder_head_porting.
- Quad_4_engine wikiPageWikiLink Delta_Charter_Township,_Michigan.
- Quad_4_engine wikiPageWikiLink Electrical_impedance.
- Quad_4_engine wikiPageWikiLink Emission_standard.
- Quad_4_engine wikiPageWikiLink Engine_control_unit.
- Quad_4_engine wikiPageWikiLink England.
- Quad_4_engine wikiPageWikiLink Exhaust_gas_recirculation.
- Quad_4_engine wikiPageWikiLink File:Quad4-89Calais.jpg.
- Quad_4_engine wikiPageWikiLink File:Quad4-95Z24.jpg.
- Quad_4_engine wikiPageWikiLink Fuel_economy_in_automobiles.
- Quad_4_engine wikiPageWikiLink Fuel_injection.
- Quad_4_engine wikiPageWikiLink GM_Ecotec_engine.
- Quad_4_engine wikiPageWikiLink Gasoline.
- Quad_4_engine wikiPageWikiLink Gasoline_direct_injection.
- Quad_4_engine wikiPageWikiLink General_Motors.
- Quad_4_engine wikiPageWikiLink Getrag.
- Quad_4_engine wikiPageWikiLink Getrag_282_transmission.
- Quad_4_engine wikiPageWikiLink Hot_rod.
- Quad_4_engine wikiPageWikiLink Indianapolis_500.
- Quad_4_engine wikiPageWikiLink Inline-four_engine.
- Quad_4_engine wikiPageWikiLink Interference_engine.
- Quad_4_engine wikiPageWikiLink Iron_Duke_engine.
- Quad_4_engine wikiPageWikiLink Lansing,_Michigan.
- Quad_4_engine wikiPageWikiLink Lansing_Engine_Plant.
- Quad_4_engine wikiPageWikiLink List_of_GM_engines.
- Quad_4_engine wikiPageWikiLink Manifold_(disambiguation).
- Quad_4_engine wikiPageWikiLink Manual_transmission.
- Quad_4_engine wikiPageWikiLink Naturally_aspirated_engine.
- Quad_4_engine wikiPageWikiLink Noise,_vibration,_and_harshness.
- Quad_4_engine wikiPageWikiLink Northstar_engine_series.
- Quad_4_engine wikiPageWikiLink Octane_rating.
- Quad_4_engine wikiPageWikiLink Offenhauser.
- Quad_4_engine wikiPageWikiLink Oil_pump_(internal_combustion_engine).
- Quad_4_engine wikiPageWikiLink Oldsmobile.
- Quad_4_engine wikiPageWikiLink Oldsmobile_442.
- Quad_4_engine wikiPageWikiLink Oldsmobile_Achieva.
- Quad_4_engine wikiPageWikiLink Oldsmobile_Aerotech.
- Quad_4_engine wikiPageWikiLink Oldsmobile_Alero.
- Quad_4_engine wikiPageWikiLink Oldsmobile_Cutlass_Calais.
- Quad_4_engine wikiPageWikiLink Oldsmobile_Cutlass_Supreme.
- Quad_4_engine wikiPageWikiLink Overhead_camshaft.
- Quad_4_engine wikiPageWikiLink Overhead_valve_engine.
- Quad_4_engine wikiPageWikiLink Pontiac_Grand_Am.
- Quad_4_engine wikiPageWikiLink Pontiac_Grand_Prix.
- Quad_4_engine wikiPageWikiLink Pontiac_Sunfire.
- Quad_4_engine wikiPageWikiLink Pontiac_Trans_Sport.
- Quad_4_engine wikiPageWikiLink Quad_4_engine.
- Quad_4_engine wikiPageWikiLink Redline.
- Quad_4_engine wikiPageWikiLink Revolutions_per_minute.
- Quad_4_engine wikiPageWikiLink Safety_car.
- Quad_4_engine wikiPageWikiLink Stroke_(engine).
- Quad_4_engine wikiPageWikiLink Torque.
- Quad_4_engine wikiPageWikiLink Turbocharger.
- Quad_4_engine wikiPageWikiLink V6_engine.
- Quad_4_engine wikiPageWikiLink V8_engine.
- Quad_4_engine wikiPageWikiLink Variable_valve_timing.
- Quad_4_engine wikiPageWikiLink Water_cooling.
- Quad_4_engine wikiPageWikiLink Wet_sump.
- Quad_4_engine wikiPageWikiLink File:2.4L_Twin_Cam.jpg.
- Quad_4_engine wikiPageWikiLink File:Quad_OHC_I4_engine.jpg.
- Quad_4_engine wikiPageWikiLink File:W41engine.jpg.