Mazda Z engine

Mazda Z engine
Mazda Z engine
	Mazda ZY-VE engine
Overview
Manufacturer	Mazda
Production	1995-2014
Layout
Configuration	Inline 4
Displacement	1.3 L; 82.3 cu in (1,348 cc); 1.5 L; 90.9 cu in (1,489 cc); 1.5 L; 91.4 cu in (1,498 cc); 1.6 L; 97.5 cu in (1,598 cc);
Cylinder bore	74 mm (2.91 in); 75.3 mm (2.96 in); 78 mm (3.07 in);
Piston stroke	78.4 mm (3.09 in); 83.6 mm (3.29 in);
Cylinder block material	Cast iron, Aluminum
Cylinder head material	Aluminum
Valvetrain	DOHC 4 valves x cyl. with VVT
Combustion
Fuel system	Fuel injection
Fuel type	Gasoline
Oil system	Wet sump
Cooling system	Water-cooled
Output
Power output	88 hp (66 kW; 89 PS); 90 hp (67 kW; 91 PS); 91 hp (68 kW; 92 PS); 92 hp (69 kW; 93 PS); 105 hp (78 kW; 106 PS); 110 hp (82 kW; 112 PS); 111 hp (83 kW; 113 PS); 130 hp (97 kW; 132 PS)
Chronology
Predecessor	Mazda B engine
Successor	Mazda SKYACTIV-G engine

The Mazda Z-series is a smaller gasoline inline-four engine ranging in displacements from 1.3 L to 1.6 L. They are the evolution of the cast-iron block B-engine.

The Z-engine has 16-valves operated by dual overhead camshafts, which are in turn driven by a timing chain (ZJ/Z6/ZY only). The block of the 98-02 Z5, ZM and ZL engine is cast iron same as the earlier B series of engines.

Other Z engines have aluminum alloy block and head, with cast-iron cylinder liners. The block features split upper and lower block assembly for added strength and rigidity, special long intake manifold for added torque, S-VT continuous variable valve timing, and a stainless steel 4:1 exhaust header.

In 2011, Mazda started to introduce the SkyActiv G-engine as a new, more economical option with vehicles that also ran the Mazda Z-engine. Production was finally halted in 2014, being the last year of the Demio/Mazda2, Verisa as well as Axela/Mazda3 of their generations. From here on in, Mazda moved on to the full SkyActiv architecture vehicles including running only the aforementioned SkyActiv G-engine but now offering it in also larger displacements, as well as a new SkyActiv D-engine turbo-diesel.

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