Toyota UZ engine

Toyota UZ engine

Infobox Automobile engine
name=Toyota UZ engine


manufacturer=Toyota Motor Corporation
production=1989–
class=DOHC 90° V8
similar=Jaguar AJ-V8
Ford Modular V8
Ford/Yamaha V8
GM Premium V
Mercedes-Benz M113/M155
BMW M62
BMW N62
Nissan VH
Nissan VK
successor=Toyota UR engine
The Toyota UZ engine family is a 32-valve quad-camshaft V8 piston engine series used in Toyota's luxury offerings and sport utility vehicles. It was produced in three basic versions, the 1UZ-FE, 2UZ-FE, and 3UZ-FE. A modified version of the 3UZ-FE was used in GT500 race vehicles. The first variant of the Toyota UZ engine, the 1UZ-FE, was introduced in 1989 with the original Lexus LS 400.__TOC__

1UZ-FE

The 4.0 L (3968 cc) all-alloy 1UZ-FE debuted in 1989 in the first generation Lexus LS 400/Toyota Celsior and the engine was progressively released across a number of other models in the Toyota/Lexus range. The engine is oversquare by design, with a bore size of 87.5mm and stroke of 82.5mm. It has proved to be a strong, reliable and smooth powerplant with features such as 6-bolt main bearings and belt-driven quad-camshafts. The connecting rods and crankshaft are constructed of steel. The pistons are hypereutectic.

In its standard, original trim with 10:1 compression, power output is 191 kW (256 hp), torque of 353 N·m (260 ft·lbf).

The engine was slightly revised in 1995 with lighter connecting rods and pistons and an increased compression ratio to 10.4:1 resulting in peak power of Convert|195|kW|hp|0|abbr=on and torque of auto Nm|363.

In 1997, Toyota's VVT-i variable valve timing technology was introduced along with a further CR increase to 10.5:1 bumping power and torque to 216 kW (290 hp) and 407 N·m (300 ft·lbf).

The 1UZ-FE was voted to the Ward's 10 Best Engines list for 1998 through 2000.

Applications:
* 1989-2000 Lexus LS 400/Toyota Celsior
* 1990-2002 Toyota Crown
* 1991-2000 Lexus SC 400/Toyota Soarer
* 1992-2000 Lexus GS 400/Toyota Aristo
* Toyota MR2 Le Mans Car

See also:
* [http://waw.wardsauto.com/ar/auto_toyotalexus_dohc Ward's article]

2UZ-FE

The 2UZ-FE is a 4.7 L (4664 cc) cast iron block version built in Tahara, Aichi, Japan and at Toyota Motor Manufacturing Alabama. Designed for low-revving, high-torque SUV applications, its bore is 94 mm and stroke is 84 mm. Output is 179 kW (271 hp) at 4800 rpm with 427 N·m (315 ft·lbf) of torque at 3400 rpm. Like the 1UZ-FE it has aluminium DOHC cylinder heads, MFI fuel injection, 4 valves per cylinder with bucket tappets, one-piece cast camshafts, and a cast aluminium intake manifold.

Applications:
* 1998-2005 Toyota Land Cruiser
* 1998-2005 Lexus LX 470
* 2001-2003 Toyota Tundra
* 2001-2003 Toyota Sequoia

Another 2UZ-FE variation adds VVT-i and electronic throttle control.

Applications:
* 2004 Toyota Tundra
* 2004 Toyota Sequoia
* 2004 Lexus GX 470
* 2005 Toyota 4Runner
* 2008 Toyota Land Cruiser 200

3UZ-FE

The 3UZ-FE is a 4.3 L (4292 cc) version built in Japan. Bore is 91 mm and stroke is 82.5 mm. Output is 216 to 224 kW (290 to 300 hp) at 5600 rpm with 441 N·m (325 ft·lbf) of torque at 3400 rpm. It has an aluminum engine block and aluminum DOHC cylinder heads. It uses SEFI fuel injection, has 4 valves per cylinder with VVT-i. It replaced the 3S-GTE as the engine that powers Toyota's Super GT race cars.

Applications:
* Lexus LS 430
* Lexus GS 430
* Lexus SC 430/Toyota Soarer
* Super GT
** Toyota Supra GT500 Race Car
** Lexus SC 430 GT500 Race Car

ee also

* List of Toyota engines


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