Toyota GZ engine
| Toyota GZ engine | |
|---|---|
 Toyota's 1GZ-FE engine installed in the GZG50 Century | |
| Overview | |
| Manufacturer | Toyota |
| Production | 1997–2016 |
| Layout | |
| Configuration | V12 |
| Displacement | 4,996 cc (304.9 cu in) |
| Cylinder bore | 81 mm (3.189 in) |
| Piston stroke | 80.8 mm (3.181 in) |
| Valvetrain | DOHC |
| Compression ratio | 10.5:1 |
| Combustion | |
| Fuel system | Electronic port fuel injection |
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Output | |
| Power output |
|
| Specific power |
|
| Torque output | 481 N⋅m (355 lb⋅ft) |
| Chronology | |
| Predecessor | Toyota V engine (V8) |
| Successor | Toyota 2UR-FSE engine (V8) |
The Toyota GZ engine family consists of a single model, the 1GZ-FE. This engine is used as the powerplant for the second generation Century limousine from 1997 to 2016.
1GZ-FE[]
The 1GZ-FE is a 4,996 cc (5.0 L) 48-valve DOHC V12 engine with variable valve timing (VVT-i). Bore is 81 mm and stroke is 80.8 mm, with a compression ratio of 10.5:1. Official output as per Japanese Manufacturers' Agreement is 220 kW (295 hp) at 5,200 rpm although true power output is estimated to be around 230 kW (308 hp)[citation needed]. Peak torque of 481 N⋅m (355 lbf⋅ft) is at 4,000 rpm with over 400 N⋅m (295 lbf⋅ft) available from as little as 1200 rpm. The Electronic fuel-injection system is controlled by two ECUs, one for each bank of six cylinders. The engine is capable of running on either bank should a malfunction occur.[1]
In 2010 the standard engine was revised in order to meet tough fuel economy and emissions standards, reducing power slightly and peak torque to 460 N⋅m (339 lbf⋅ft).[2]
- Applications
- 1997–2016 Toyota Century (GZG50)
- 2006–2008 Toyota Century Royal
1GZ-FNE[]
A version is available running on compressed natural gas which produces 190 kW (255 hp) and 405 N⋅m (299 lbf⋅ft).[3][4]
- Applications
- 2003–2004 Toyota Century
See also[]
References[]
- ^ "トヨタ センチュリー | 安全装備 | 予防安全" [Toyota Century Safety Equipment Preventive Safety]. Goo-net (in Japanese). Archived from the original on 2015-05-08.
- ^ "センチュリー（トヨタ）のモデル・グレード別カタログ情報" [Century (Toyota) model· Catalog information by grade]. Goo-net (in Japanese). Retrieved 2017-10-15.
- ^ "TOYOTA CENTURY catalog - reviews, pics, specs and prices". Goo-net Exchange. Retrieved 2017-10-15.
- ^ "TOYOTA CENTURY, CNG CAR FLOOR SHIFT catalog - reviews, pics, specs and prices". Goo-net Exchange. Retrieved 2017-10-15.
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