Toyota RZ engine

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Toyota RZ engine
Overview
Manufacturer	Toyota Motor Corporation
Production	1989–2004
Layout
Configuration	Naturally aspirated Straight-4
Cylinder bore	86 mm (3.39 in) 95 mm (3.74 in)
Piston stroke	86 mm (3.39 in) 95 mm (3.74 in)
Cylinder block material	Cast iron
Cylinder head material	Aluminum
RPM range
Max. engine speed	5,500
Combustion
Fuel system	Electronic fuel injection
Fuel type	Gasoline
Cooling system	Water-cooled
Output
Power output	101–150 hp (75–112 kW; 102–152 PS)
Torque output	118–177 lb⋅ft (160–240 N⋅m)
Chronology
Predecessor	Toyota K engine Toyota Y engine
Successor	Toyota TR engine

The Toyota RZ engine family is a straight-four piston engine series built in Japan. The RZ series uses a cast-iron engine block and aluminum SOHC or DOHC cylinder heads. It has electronic fuel injection (EFI), 2 or 4 valves per cylinder and features forged steel connecting rods.