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Mazda L engine Connect

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The Mazda L-series is a mid-sized inline 4-cylinder gasoline engine designed by Mazda, ranging in displacement from 1.8L to 2.5L. Introduced in 2001, it is the evolution of the cast-iron block F-engine. The L-series is used by Ford as their 1.8L to 2.5L 'Duratec' world engine.

The L-engine uses a chain-driven DOHC, 16-valve valvetrain with an all-aluminum block construction and cast-iron cylinder liners. Other features include fracture-split forged powder metal connecting rods and a one-piece cast crankshaft.

Other features are intake cam-phasing VVT, VTCS, VICS, a stainless steel 4:1 exhaust header and a lower main bearing cage for increased block rigidity. Direct-injection is available on the 2.0 L LF-VD and the award-winning (DISI) turbocharged L3-VDT engine introduced in 2006 for the Mazdaspeed lineup of vehicles.

As of 2010, Ford is introducing a GDI turbo variant of the Mazda LF engine design as the EcoBoost 2.0L, using Ford's own manifold and engine control systems. Ford plans to use the L-engine well into the future for their EcoBoost and Duratec 4-cylinder generations. As of 2011, Mazda will cease to develop the L-engine, to be replaced by the SKYACTIV P-engine. At this time, Ford will be the only manufacturer still using the Mazda L-engine design.


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1.8 L (L8-DE, L8-VE)

The 1.8 L (1,798 cc (109.7 cu in)) version has an nearly-square 83.0 mm (3.3 in) bore and a 83.1 mm (3.3 in) stroke. Output is 125 hp (93 kW) at 6000 rpm with 122 lb·ft (165 N·m) of torque at 4250 rpm.

In 2001, Ford introduced its first European Ford engine to use gasoline direct injection technology, badged SCi (Smart Charge injection) for Direct-Injection-Spark-Ignition (DISI). The range will include some turbocharged derivatives, including the 1.1-litre, three-cylinder turbocharged unit showcased at the 2002 Geneva Show. The 1.8 L was the first European Ford engine to use direct injection technology, badged SCi for Smart Charge Injection. This appeared in the Mondeo in 2003 and is today available on the 2.0 L engine as well.

The SCi engines were designed at Ford's Cologne, Germany facility and are assembled in Valencia, Spain. The SCi engine is paired with a specially designed six-speed manual transmission.

European 1.8 L and 2.0 L Duratec HE engines are built at the Valencia Engine Plant in Spain. Duratec FFV is a flex fuel version of the 1.8 L Duratec-HE modified to run on E85 fuel. 1.8L Focus C-Max and Focus Mk II versions use a drive-by-wire throttle to improve responsiveness.

Ford's versions are rated at 92 kW (123 hp) at 6000 rpm and 165 N·m (122 lb·ft) of torque at 4500 rpm with a 10.8:1 compression ratio.

Applications:

  • Mazda6 for Europe
  • Mazda MX-5 for Europe
  • 2005 Mazda Premacy/Mazda5
  • Ford Mondeo
  • Ford Focus

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2.0 L (LF-DE, LF-VE, LF-VD)

The 2.0 L (1,999 cc (122.0 cu in)) version has 10.0:1 compression ratio, an 87.5 mm (3.44 in) bore and it shares the 83.1 mm (3.27 in) stroke of the 1.8 L. Changes to the engine include switching from a cast aluminum to a reinforced plastic intake manifold and from sequential multi-point fuel injection to gasoline direct injection.

Ford's version is rated at 107 kW (143 hp) of power at 6000 rpm and 185 N·m (136 lb·ft) of torque at 4500 rpm with a 10.8:1 compression ratio.

On the 2007 Focus, output is 136 hp (101 kW) at 6000 rpm with 136 lb·ft (184 N·m) of torque at 4250 rpm. The 2007 Focus with the PZEV emissions package produces 130 hp (97 kW) at 6000 rpm with 129 lb·ft (175 N·m) of torque at 4000 rpm. On the 2008 Focus, output is 140 hp (100 kW) at 6000 ;rpm with 136 lb·ft (184 N·m) of torque at 4250 rpm. The 2009 Focus had 143 hp (107 kW) when equipped with manual transmission due to a higher flowing exhaust system. The 2008 Focus with the PZEV emissions package produces 132 hp (98 kW) at 6000 rpm and 133 lb·ft (180 N·m) of torque at 4250 rpm.

Mazda's LF-VD version was equipped with DISI direct injection and a higher compression ratio for improved efficiency in the JDM and EDM markets. It produces 148 hp (110 kW) at 6500 rpm and 138 lb·ft (187 N·m) of torque at 4000 rpm.

In 2011 Ford started selling the third generation Ford Focus in North America which comes with an updated version that utilizes direct injection and Ti-VCT. These features, along with an increased compression ratio of 12.1:1 allow the engine to generate 160 hp (119 kW) at 6000 rpm and 146 lb·ft (198 N·m) of torque at 4250 rpm. This version is referred to as the "Duratec 20."

The Ford Duratec 20 engines are built in Dearborn, Michigan, United States, Chihuahua, Mexico with some being built by Mazda in Hiroshima, Japan.

The plastic intake manifold on early versions of the 1.8 and 2.0 has a major fault due to poor-quality materials. The manifold has swirlplates mounted on a square shaft at the aperture where it mounts to the cylinder head. Early 4-cylinder Duratec engines can be ruined when the swirlplates break off and enter a cylinder. Most cases are of single swirlplates but also the shaft can wear and break. Early signs of this fault are evidenced by a ticking noise emanating from the front of the engine. This can occur as early as 25K miles, with failure typically occurring after about 90K miles. (more details)

Applications:

  • 2007-2010 Ford C-Max
  • 2004- Ford EcoSport
  • 2004-2008 Ford Fiesta ST
  • 2003-2011 Ford Focus
  • 2000-2007 Ford Mondeo
  • 2010-2012 Ford Transit Connect
  • 2004-2005 Mazda Axela/Mazda3
  • 2002-2008 Mazda6 for Europe
  • 2006-2007 Mazda Premacy/Mazda5
  • 2006-2015 Mazda MX-5
  • 2006-2010 Volvo C30
  • 2007-2010 Volvo S40
  • 2007-2010 Volvo V50

A turbocharged EcoBoost version was introduced in 2010.


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2.3L (L3-VE,L3-N5,L3-DE)

The 2.3 L (2,261 cc (138.0 cu in)) version uses the same 87.5 mm (3.44 in) bore as the 2.0 L but with a long 94.0 mm (3.70 in) stroke. It produces around 122 kW (164 hp) at 6000 rpm and 195 N·m (144 lb·ft) between 4000-4500 rpm

The 23EW was built in Chihuahua, Mexico for transverse installation in several front-drive Ford/Mercury/Mazda vehicles through the 2009 model year. "EW" in the Ford designation code denotes East-West configuration, or transverse mounting. Three versions of the 23EW have been produced. A standard DOHC 16V version was used in the North American Focus producing 151 hp (113 kW) at 5750 rpm with 154 lb·ft (209 N·m) of torque at 4250 rpm. An iVCT (intake variable cam timing)-equipped DOHC 16V version was used in the 2006-2009 Ford Fusion/Mercury Milan, and several generations of CD2-based crossovers.

The 23NS was built in Dearborn, Michigan for the Ford Ranger and North American market Mazda B-Series from the 2001 model year to the 2011 model year. "NS" denotes North-South configuration, or longitudinal mounting. These engines are tuned for torque-bias making them suitable for light-truck use and are not equipped with iVCT or VICS. There are two versions of the 23NS with slight differences:

2001-2003 Ranger 2.3L Duratec 135 HP @ 5050 RPM 153 lb-ft @ 3750 RPM intake manifold runner control / swirl control MAF housing a separate piece from the air box lid (with older style MAF sensor) electrically heated thermostat J1850PWM OBD-II protocol rated 24 city 28 hwy (old EPA calcs) for the manual trans

2004+ Ranger 2.3L Duratec 143 HP @ 5250 RPM 154 lb-ft @ 3750 RPM no IMRC / swirl control MAF housing integrated into the air box lid (with newer style MAF sensor) regular t-stat CAN OBD-II protocol rated 24 city 29 hwy (old EPA calcs) for the manual trans

The Duratec 23E is a version of the Duratec 23 with California PZEV emissions.

A high-efficiency Atkinson cycle version was used in the Ford Escape Hybrid, Mercury Mariner Hybrid, and Mazda Tribute Hybrid.

A Cosworth tuned version of this engine is found in the BAC Mono producing 285 bhp (213 kW; 289 PS) and 206 lb-ft (279 N-m)of torque making it the most powerful version of this engine.

Applications:

  • 2003-2007 Ford Focus
  • 2004-2007 Mazda Axela/Mazda3
  • 2003-2008 Mazda Atenza/Mazda6
  • 2005-2008 Ford Escape/Mazda Tribute/Mercury Mariner
  • 2002-2005 Mazda MPV
  • 2006-2010 Mazda Premacy/Mazda5
  • 2006-2009 Ford Fusion/Mercury Milan
  • 2010-BAC Mono (developed by Cosworth)
  • 2010-Thoroughbred Motorsports "Stallion" Trike
  • 2001-2010 Mazda B2300
  • 2001-2011 Ford Ranger

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2.3L DISI Turbo (L3-VDT)

An award-winning turbocharged version of the 2.3 with direct injection spark ignition, or "DISI" is also produced. It develops 263 hp (196 kW) @5,500 rpms and 280 lb·ft (380 N·m) @3,000 rpms and is capable of propelling the Mazdaspeed3 from 0-60 mph in 5.6 seconds.

While the 2.0 Ford EcoBoost engine and its later 2.3 variant share a cylinder block with the L3-VDT and are derived from the Mazda L architecture, little else is shared between the EcoBoost and L3-VDT and they should not be confused with one another. The EcoBoost engines have different turbochargers, Ford-designed heads, different direct injection systems along with featuring Ford's Ti-VCT variable valve timing system instead of Mazda's S-VT.

Applications:

  • 2005-2007 Mazdaspeed6/Atenza MPS
  • 2006-2012 Mazda CX-7
  • 2006-2012 Mazdaspeed3/Axela MPS
  • 2006-2010 Mazda MPV (JDM only)

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2.5 L (L5-VE)

Introduced in non-North American markets for the MY2008 and North American markets for MY2009, the 2.5L L5-VE is an updated, bored and stroked version of the L3-VE 2.3L. The 2.5L (2,488 cc (151.8 cu in)) L5 engine has an 89.0 mm (3.50 in) bore and a 100.0 mm (3.94 in) stroke, with a compression ratio of 9.7:1. The standard crankshaft is forged-steel with eight counterweights like the turbocharged DISI 2.3L L3-VDT. To increase durability of the bore, Mazda uses a 4340 steel-molybdenum alloy material for the cylinder liners. This offers enhanced high-heat tolerance as well as reduced friction. The increased stroke of 100 mm (3.9 in), up from 94 mm (3.7 in) of the L3, allows a taller (numerically lower) final-drive ratio resulting in lower-rpm while cruising to increase fuel economy. It also uses iVCT. It produces 170 bhp (130 kW) at its 6000 rpm redline (168 hp (125 kW) in PZEV trim) and 167 lb·ft (226 N·m) of torque at 4000 rpm (166 lb·ft (225 N·m) in PZEV trim). Certain versions are rated at 175 hp (130 kW) at 6000 rpm with 172 lb·ft (233 N·m) of torque at 4500 rpm.

Ford has developed an Atkinson cycle variant of the Mazda L5 engine for use in the Ford Fusion Hybrid vehicle. The Atkinson cycle engine was named one of Ward's 10 Best Engines for 2010. Fuel saving features include adaptive knock control and aggressive deceleration fuel cutoff. This and the 2.3 L competed with Toyota's 2.4 L 2AZ-FE engine, sharing similar technology.

This engine is built in Chihuahua, Mexico.

Applications:

  • 2008-2012 Mazda Atenza/Mazda6 (non-North America)
  • 2009-2013 Mazda6 (North America)
  • 2009- Mazda Tribute
  • 2010- * Mazda Axela/Mazda3
  • 2011- * Ford Ranger
  • 2010- Ford Fusion
  • 2010-2011 Mercury Milan
  • 2012 Lincoln MKZ Hybrid
  • 2009- Ford Escape
  • 2014- Ford Transit Connect

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MZR-R

In late 2006, Mazda announced an agreement with Advanced Engine Research (AER) to develop the MZR-R motor for sports car racing. The engine is a 2.0 L turbocharged I4 based on the production MZR block [1]. The engine will initially be used by the Mazda factory team in the American Le Mans Series as a replacement for their R20B rotary, then later sold to customer teams.

Source of the article : Wikipedia



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