Toyota KR engine
Encyclopedia
The Toyota KR engine family is a straight-3
piston engine series, designed by Daihatsu, which is a subsidiary of Toyota. The 1KR series uses aluminium engine blocks and chain driven DOHC cylinder heads. It also uses multi-point fuel injection
, and has 4 valves per cylinder with VVT-i
.The engine is also exceptionally light with a 69KG weight with all ancillaries. This is due to the nature of the applications and weight of city cars.
The 1KR-FE is a 1.0 L (996 cc) version built in Japan
and Poland
. Bore is 71 mm and stroke is 84 mm, with a compression ratio
of 10.5:1. Output is 67 PS (50 kW) at 6000 RPM with 67.07 ft·lbf (91 N·m) of torque at 4800 RPM or 71 PS (53 kW) at 6000 RPM with (94 N·m) of torque at 3600 RPM. Carbon emission levels are 109 g/km. This engine has been given the 2007, 2008, 2009 and 2010 International Engine of the Year
awards in the sub-1.0 liter category.
Applications:
Straight-3
A straight-three engine, also known as inline-three engine, or a triple, is a reciprocating piston internal combustion engine with three cylinders arranged in a straight line or plane, side by side....
piston engine series, designed by Daihatsu, which is a subsidiary of Toyota. The 1KR series uses aluminium engine blocks and chain driven DOHC cylinder heads. It also uses multi-point fuel injection
Fuel injection
Fuel injection is a system for admitting fuel into an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s....
, and has 4 valves per cylinder with VVT-i
VVT-i
VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota, similar in performance to the BMW's VANOS. The Toyota VVT-i system replaces the Toyota VVT offered starting in 24 December 1991 on the 5-valve per cylinder 4A-GE engine. The...
.The engine is also exceptionally light with a 69KG weight with all ancillaries. This is due to the nature of the applications and weight of city cars.
1KR-FE
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
and Poland
Poland
Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...
. Bore is 71 mm and stroke is 84 mm, with a compression ratio
Compression ratio
The 'compression ratio' of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its largest capacity to its smallest capacity...
of 10.5:1. Output is 67 PS (50 kW) at 6000 RPM with 67.07 ft·lbf (91 N·m) of torque at 4800 RPM or 71 PS (53 kW) at 6000 RPM with (94 N·m) of torque at 3600 RPM. Carbon emission levels are 109 g/km. This engine has been given the 2007, 2008, 2009 and 2010 International Engine of the Year
International Engine of the Year
The International Engine of the Year is an annual competition for automotive industry internal combustion engines, judged by a panel of automobile journalists from around the world. It is organised by the United Kingdom's largest technical motoring, aerospace and traffic management publication...
awards in the sub-1.0 liter category.
Applications:
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