Toyota KR engine

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Toyota KR engine
1KR-FE in a Daihatsu Sirion
Overview
Manufacturer	Daihatsu
Production	2004–present
Layout
Configuration	Straight-3
Displacement	1.0 L (998 cc)
Cylinder bore	71 mm (2.8 in)
Piston stroke	84 mm (3.31 in)
Cylinder block material	Aluminium
Cylinder head material	Aluminium
Valvetrain	DOHC 4 valves x cyl. with VVT-i
Combustion
Turbocharger	On 1KR-VET only
Fuel system	Multi-point fuel injection
Fuel type	Gasoline
Cooling system	Water-cooled
Output
Power output	48–72 kW (64–97 bhp; 65–98 PS)
Torque output	85–140 N⋅m (63–103 lb⋅ft)
Dimensions
Dry weight	69 kg (152 lb)
Chronology
Predecessor	Daihatsu EJ engine (I3) Toyota 1SZ-FE (I4)

The Toyota KR engine family is a straight-3 piston engine, designed by Daihatsu, a subsidiary of Toyota. The 1KR series uses aluminium engine blocks and chain driven DOHC cylinder heads. It uses multi-point fuel injection, and has 4 valves per cylinder. Some versions have VVT-i variable valve timing. The engine is exceptionally light: 69 kg (152 lb) with all ancillaries.