Toyota GZ engine
ManufacturerToyota
Production1997–2017
PredecessorToyota V engine (V8)
SuccessorToyota 2UR-FSE engine (V8)
Configuration60° V12[1]
Displacement4,996 cm3 (304.9 cu in)
Bore81 mm (3.189 in)
Stroke80.8 mm (3.181 in)
ValvetrainDOHC
Compression10.5:1
FuelsystemElectronic port fuel injection
FueltypeGasoline
CoolingsystemWater-cooled
Power
  • 206 kW; 276 hp; 280 PS (280 PS) (official)
  • 229 kW; 308 hp; 312 PS (312 PS) (actual, estimated)
Specpower
  • PS kW hp PS 1 per liter (official)
  • PS kW hp PS 1 per liter (actual, estimated)
Torque481 N⋅m (355 lb⋅ft)

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 2017.

1GZ-FE

The 1GZ-FE is a 4,996 cm3 (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. The official power output advertised in Japan per the gentlemen's agreement is 206 kW; 276 hp; 280 PS (280 PS) at 5,200 rpm, though it was advertised as 220 kW (295 hp; 299 PS) in export markets. Peak torque of 481 N⋅m (355 lb⋅ft) is at 4,000 rpm with over 400 N⋅m (295 lb⋅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.[2]

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 lb⋅ft) although this torque figure had been advertised in export markets since at least 2004.[3]

Applications

1GZ-FNE

A version is available running on compressed natural gas which produces 190 kW (255 hp) and 405 N⋅m (299 lb⋅ft).[4][5]

Applications

See also

References

  1. ^ Cleveland, Bryce (2021-08-13). "Toyota 1GZ-FE: Everything You Need To Know". Dust Runners Automotive Journal. Retrieved 2021-10-18.
  2. ^ "トヨタ センチュリー - 安全装備 - 予防安全" [Toyota Century Safety Equipment Preventive Safety] (in Japanese). Goo-net. Archived from the original on 2015-05-08.
  3. ^ "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) Catalog information by model and grade] (in Japanese). Goo-net.com. Retrieved 2017-10-15.
  4. ^ "TOYOTA CENTURY catalog - reviews, pics, specs and prices". Goo-net Exchange. Retrieved 2017-10-15.
  5. ^ "TOYOTA CENTURY, CNG CAR FLOOR SHIFT catalog - reviews, pics, specs and prices". Goo-net Exchange. Retrieved 2017-10-15.