Mazda Z engine

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Mazda Z engine
Mazda ZY-VE Engine.JPG
Mazda ZY-VE engine
Overview
Manufacturer Mazda
Production1995-2014
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)
Block material Cast iron, Aluminum
Head materialAluminum
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.

Contents

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.

Z5

The 1.5 L (1,489 cc)92 hp (69 kW; 93 PS)Z5-DE was used in the 1995-1998 Mazda Protegé, Mazda Lantis (Astina) and in Mazda Familia Neo (1994–1997). Bore and stroke were 75.3 mm × 83.6 mm (2.96 in × 3.29 in).

The Z5 engine was introduced as the first of a newer line of Mazda Z-series engines. The Z series was a new design based on the B-series block, block internals and oil-pan and a different DOHC head. [1] Early versions of this motor had a chain driven exhaust cam.

The block is cast iron, the oil-pan is a 2-piece design with an upper aluminum and lower stamped steel, piston oil squirters are standard. The cylinder head was a compact design with round intake and exhaust ports. JDM versions produce 97 PS (71 kW; 96 hp) and 110 PS (81 kW; 108 hp). There was also lean-burn version introduced in August 1995; this model produces 94 PS (69 kW; 93 hp) and sees gas mileage improvements of ten to fifteen percent in the standard Japanese test cycle.

ZJ

Mazda ZJ-VEM Mazda ZJ-VEM engine.jpg
Mazda ZJ-VEM

The 1.3 L (1,348 cc)ZJ74 mm × 78.4 mm (2.91 in × 3.09 in) is available with either continuous cam-phasing VVT ZJ-VE91 hp (68 kW; 92 PS) or a high-efficiency Miller cycle ZJ-VEM90 hp (67 kW; 91 PS).

Applications:

ZY

1.5 L (1,498 cc)111 hp (83 kW; 113 PS)ZY-VE78 mm × 78.4 mm (3.07 in × 3.09 in)

ZL

1.5 L (1,498 cc)88 hp (66 kW; 89 PS) EEC, 110 hp (82 kW; 112 PS) JIS, ZL-DE78 mm × 78.4 mm (3.07 in × 3.09 in)

1.5 L (1,498 cc)130 hp (97 kW; 132 PS) JIS ZL-VE78 mm × 78.4 mm (3.07 in × 3.09 in) The 1.5 L ZL-VE makes more power than the slightly larger 1.6 L Z6/M-DE its due to variable valve timing on the intake cam (S-VT).

Applications:

ZM

1.6 L (1,598 cc)105 hp (78 kW; 106 PS)ZM-DE78 mm × 83.6 mm (3.07 in × 3.29 in) The ZM engine, has an identical bore yet slightly longer stroke than the ZL as well as a revised head with round intake and exhaust ports. It has exactly the same bore and stroke as the previous generation B6. Some European variants would use VICS on the intake manifold.

1.6 L (1,598 cc)97 hp (72 kW; 98 PS)ZM-II was a variant of the ZM designated to the company Haima to use on the Haima Family. When the Mazda contract to Haima expired the engine was rebranded as a ZM-D and no longer would bear any Mazda markings on the valve cover.

The 1.5 L (1,498 cc)130 hp (97 kW; 132 PS)ZL-VE and 1.6 L (1,598 cc)105 hp (78 kW; 106 PS)ZM-DE are closely related engines with an equal bore 78 mm (3.1 in) and share some major parts. The ZL has a stroke of 78.4 mm (3.09 in) whilst the ZM has 83.6 mm (3.29 in).

Applications:

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References

  1. Z5 Dohc Manual 1994 1999. Mazda.