TOYOTA ZZ ENGINE

The Toyota ZZ engine family is a straight-4 piston engine series. The ZZ series uses a die-cast aluminum engine block with aluminum silicon cylinder liners, and aluminum DOHC 4-valve cylinder heads, a first for Toyota.[1] The camshafts are chain-driven. The two 1.8 L members of the family, the 1ZZ and 2ZZ, use different bore and stroke. The former was optimized for economy and torque, while the latter is a "square" design optimized for high-RPM power. The ZZ family replaced the extremely popular cast-iron block 4A engines. Toyota engine names are interpreted as follows. The leading number denotes the generation, and the next one or two letters, followed by a hyphen, specify the engine family. The remaining letters, following the hyphen, describe the engine's major features. For example, the 2ZZ-GE can be decoded as being the second generation of the ZZ engine series and features a performance-oriented cylinder head with widely-angled valves (G) and electronic fuel injection 1ZZ-FE 1ZZ-FE The 1ZZ-FE is a 1.8 L (1794 cc, 225 lb) version built in Buffalo, West Virginia. Its production in Cambridge, Ontario was discontinued in December 2007. Bore is 79 mm and stroke is 91.5 mm. Compression ratio is 10.0:1. Output is between 120 hp 89 kW) at 5600 rpm with 122 ft·lb (165 N·m) of torque at 4400 rpm, and 143 hp (105 kW) at 6400 rpm with 125.8 ft·lb 170.6 N·m) of torque at 4200 rpm. It uses multi-point fuel injection, has VVT-i and features fracture-split forged powder metal connecting rods, a one-piece cast camshaft, and either a cast aluminum intake manifold or a molded plastic one.[3] A bolt-on TRD supercharger kit is available on the 2003–2004 Corolla, Matrix, and Vibe. The bolt-on TRD supercharger kit can also run on other vehicles with the non VVT-i or VVT-i versions of the 1ZZ-FE