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The 1ZZ-FE engine is a newly developed in-line 4-cylinder, 1.8-liter, DOHC 4-valve engine mounted in the new Corolla. Abounding in new technologies including the laser-clad valve seat, high-pressure die-cast aluminum cylinder block, and the small-pitch chain drive DOHC, coupled with the fundamentally reviewed basic specifications, the new engine is compact and lightweight, offering high performance and good fuel economy. Anticipating even more stringent emission regulations in the future, in addition to the revision of the engine body, the layout of the exhaust system has been improved to enhance warm-up performance of the converter.

The newly-developed 2JZ engine series is available in two types; a naturally aspirated 2JZ-GE and a turbo charged 2JZ-GTE. Both have in-Line-6 cylinder arrangement and displacement volume of 2.997 liters and have attained many features expected for the engines of new era by utilizing new technologies, such as DOHC 4 valve, high compression ratio, a highly rigid structural design which is realized by extensive use of the CAE, a serpentine accessory drive belt, and auto tensioners for timing belt and accessory belt systems. These engines are stroke up versions of the 1JZ engines. The 2JZ-GE engine, which has been developed for the SC300, delivers high performance of 169 KW/6000rpm and 284 Nm/4800rpm by adopting a variable induction system, a knock-control system with two sensors, etc. The other type, the 2JZ-GTE engine which has been developed for the Aristo in japan includes a TWO-WAY-TWIN-TURBO’ system equipped with ceramic turbine wheels.