Mazda L engine

Mazda L engine
2.0 MZR LF-VE engine in a Mazda MX-5 (NC)
Overview
Manufacturer	Mazda Ford Motor Company
Also called	MZR Duratec EcoBoost
Production	2001–present
Layout
Configuration	Inline-four
Displacement	1.8 L; 109.7 cu in (1,798 cc) 2.0 L; 122.0 cu in (1,999 cc) 2.3 L; 138.0 cu in (2,261 cc) 2.5 L; 151.8 cu in (2,488 cc)
Cylinder bore	83 mm (3.27 in) 87.5 mm (3.44 in) 89 mm (3.50 in)
Piston stroke	83.1 mm (3.27 in) 94 mm (3.70 in) 100 mm (3.94 in)
Cylinder block material	Aluminum
Cylinder head material	Aluminum
Valvetrain	DOHC 4 valves x cyl. with VVT (some versions)
Compression ratio	9.7:1, 10.0:1, 10.8:1, 12.1:1
Combustion
Turbocharger	On some versions since 2010
Fuel system	Sequential multi-port fuel injection Direct injection
Fuel type	Gasoline
Oil system	Wet sump
Cooling system	Water-cooled
Output
Power output	92–209 kW (125–284 PS; 123–280 hp)
Torque output	122–280 lb⋅ft (165–380 N⋅m)
Chronology
Predecessor	Mazda F engine
Successor	Mazda Skyactiv-G engine

The Mazda L-series is a mid-sized inline 4-cylinder gasoline piston engine designed by Mazda as part of their MZR family, ranging in displacement from 1.8 to 2.5 liters. Introduced in 2001, it is the evolution of the cast-iron block F-engine. It was co-developed with Ford, who owned a controlling stake in Mazda at the time. Ford uses it as their 1.8 L to 2.5 L Duratec world engine and holds a license to develop engines based on the L-series in perpetuity.

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 manifold and a lower main bearing cage for increased block rigidity. Direct-injection is available on the 2.0-liter LF-VD and the DISI turbocharged L3-VDT engine introduced in 2006 for the Mazdaspeed lineup of vehicles.

In 2010, Ford introduced a 2.0-liter GDI turbo variant of the Mazda LF engine design as the EcoBoost, 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 four-cylinder generations. In 2011, Mazda ceased further developments of the L-engine and replaced it with the SkyActiv-G engine—an extensive evolution of the Mazda L-engine. At this time, Ford will be the only manufacturer still using the Mazda L-engine design.