Among other innovations described earlier, the 1UZ-FE engine was equipped with Variable Valve Timing system or VVT-I (I - intelligent). The throttle body now is controlled electronically and the all system got its name ETCS-I (Electronic Throttle Control System - intelligent).

In 1997, Toyota's VVT-i variable valve timing technology was introduced along with a further compression ratio increase to 10.5:1, [2] bumping power and torque to 216 kW (290 hp; 294 PS) at 5,900 rpm and 407 N⋅m (300 lb⋅ft) at 4,100 rpm. For the GS 400, output was rated at 224 kW (300 hp; 305 PS) at 6,000 rpm and 420 N⋅m (310 lbf⋅ft) at ...

2023年2月17日 · 1998年至2000年，搭载VVT-i系统的丰田1UZ发动机被权威的Ward's AutoWorld杂志评为美国市场最佳发动机前10名。 3 种修改 1UZ-FE 的特性和设计特点。 最大限度。 冰功率，马力/轴速，rpm. 最大限度。 扭矩，Nm / 轴速，rpm. 在雷克萨斯 GS400 上，借助发动机控制单元 (ECU) 的额外设置，1UZ-FE VVT-i 的功率和扭矩达到了 300 马力的创纪录值。 和 420 牛米。 尽管发动机的体积和功率令人印象深刻，但由于节气门和喷射系统的良好调整操作， …

The 4.0-liter V8 Toyota 1UZ-FE engine was assembled at the Tahara plant from 1989 to 2004 and installed on the most powerful rear-wheel drive models of the Japanese concern of that time. There are two generations of the motor: 1989 without a phase regulator and …

2023年2月8日 · 1997年，丰田VVT-i技术的应用改变了这一切，使铝制车身在4000转/分钟的转速下达到290匹马力和310磅·英尺的扭矩。 在1UZ-FE之后，出现了不受欢迎的铸铁2UZ-FE，其最大输出功率为232马力。

Двигатели Toyota 1UZ-FE и 1UZ-FE VVT-i: этапы разработки и совершенствования, технические параметры и применяемость, опыт эксплуатации, достоинства и недостатки

2024年11月17日 · Since 1997, 1UZ-FE received VVTi system on the intake shaft, changed intake channels, increased diameter of intake and exhaust valves, changed cylinder-head gasket, used a long two-stage intake manifold ACIS, improved ignition system. Also on the 1UZ-FE VVTi used new pistons for increased to 10.5 compression ratio, as well as electronic throttle.

Smoothness: The 1UZ-FE has a very smooth power delivery, due to its V8 configuration and use of advanced technologies like variable valve timing (VVT-i), introduced in later models. The engine is also very quiet, which aligns with Lexus’ brand identity for luxury and refinement.

2023年4月27日 · VVT-i stands for variable valve timing with intelligence and is arguably the best variable valve system to come out of the 1990s. VVT-i works by changing intake valve timing based on the relationship between the cam belt and the intake camshaft.

The VVT-i system is designed to control the intake camshaft within a wide range of 50° (of crankshaft angle) to provide a valve timing that is optimally suited to the engine condition, thus realizing improved torque in all the speed ranges and fuel economy, and exhust emissions. VVT-i Controller Camshaft Timing Oil Control Valve VVT Sensor ECM ...