Toyota GZ engine

Toyota GZ engine
Overview
Manufacturer Toyota
Production 1997–2016
Layout
Configuration V12
Displacement 5.0L
Cylinder bore 81 mm (3.2 in)
Piston stroke 80.8 mm (3.18 in)
Valvetrain DOHC
Compression ratio 10.5:1
Output
Power output 280 PS (210 kW) (official)
312 PS (229 kW) (actual, estimated)
Torque output 460 N⋅m (340 lbf⋅ft) at 4000rpm

The Toyota GZ engine family consists of a single model, the 1GZ-FE. This engine is used as the powerplant for the Japanese market-only Toyota Century limousine from 1997 to 2016.

1GZ-FE

The 1GZ-FE is a 5.0 L (4996 cc) V12 48-valve DOHC 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 206 kW (276 hp) at 5200 rpm although true power output is estimated to be around 230 kW (310 hp). Peak torque of 481 N⋅m (355 lbf⋅ft) is at 4000 rpm with over 400 N⋅m (300 lbf⋅ft) available from as little as 1200 rpm. The fuel injection system is controlled by two ECUs, one for each bank of cylinders. The engine is capable of running on just 6 cylinders 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 (340 lbf⋅ft).[2]

Applications

1GZ-FNE

A version is available running on compressed natural gas which produces 190 kW (250 hp) and 405 N⋅m (299 lbf⋅ft) and qualifies the 2-ton limousine as a low emissions vehicle.[3][4]

Applications

See also

References

  1. ↑ "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.
  2. ↑ "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.
  3. ↑ "TOYOTA CENTURY catalog - reviews, pics, specs and prices". Goo-net Exchange. Retrieved 2017-10-15.
  4. ↑ "TOYOTA CENTURY, CNG CAR FLOOR SHIFT catalog - reviews, pics, specs and prices". Goo-net Exchange. Retrieved 2017-10-15.


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