Toyota KR engine

The Toyota KR engine family is a straight-three piston engine designed by Daihatsu, a subsidiary of Toyota. The 1KR series uses aluminium engine blocks and chain-driven DOHC cylinder heads with multi-point fuel injection and four valves per cylinder, some versions have VVT-i variable valve timing, and the engine typically weighs 69 kg with all ancillaries but no fluids. The 1KR-FE is a 1.0 litre (998 cc) version built in Japan and Poland, with a bore and stroke of 71 mm by 84 mm and a 10.5:1 compression ratio, making 67 PS or 71 PS. It won the International Engine of the Year award in the sub-1.0 litre category in 2007, 2008, 2009 and 2010. It is fitted to the Toyota Aygo, Yaris, Belta and iQ, and to Citroen, Peugeot, Daihatsu and Subaru models.