Toyota UZ engine

Last updated
Toyota UZ Engine
Toyota 3UZ-FE engine 001.JPG
3UZ-FE engine
Overview
Manufacturer Toyota Motor Corporation
Production1989–2013
Layout
Configuration 90° V8
Valvetrain DOHC 4 valves x cyl. w/VVT-i
Combustion
Fuel system Multi-point fuel injection
Fuel type Gasoline
Cooling system Water cooled
Output
Power output 191–373 kW (256–500 hp; 260–507 PS)
Torque output 353–441 N⋅m (260–325 lb⋅ft)
Chronology
Predecessor Toyota V engine
Successor Toyota UR engine

The Toyota UZ engine family is a gasoline [1] fueled 32-valve quad-camshaft V8 piston engine series used in Toyota's luxury offerings and sport utility vehicles. [2] Three variants have been produced: the 1UZ-FE, 2UZ-FE, and 3UZ-FE. Production spanned 24 years, from 1989 to mid 2013, ending with the final production of the 3UZ-FE-powered Toyota Crown Majesta I-FOUR. [3] Toyota's UZ engine family was replaced by the UR engine family.

Contents

1UZ-FE

The 4.0 L (3,969 cc; 242.2 cu in) 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 and stroke size of 87.5 mm × 82.5 mm (3.44 in × 3.25 in). [2] It has proven to be a strong, reliable and smooth powerplant with features such as 6-bolt main bearings and belt-driven quad-camshafts. The water pump is also driven by the timing/cam belt. The connecting rods and crankshaft are constructed of steel. The pistons are hypereutectic.

1UZ-FE (rear view) 1989 Toyota 1UZ-FE Type engine rear.jpg
1UZ-FE (rear view)

The FV2400-2TC derivative is one of the few road-going engines that is FAA approved for use in an airplane.

Its resemblance to a race engine platform (6 bolt cross mains and over square configuration) was confirmed in 2007 by David Currier (in an interview with v-eight.com), vice president of TRD USA, stating that the 1UZ platform was based on CART/IRL engine design. It was planned to be used on GT500 vehicles, however its subsequent use in the Daytona Prototype use had not been planned.[ citation needed ]

In its original, Japanese domestic market trim with 10.0:1 compression, power output is 191 kW JIS (256 hp; 260 PS), torque of 353 N⋅m (260 lb⋅ft). [2] The European-market version produces a claimed 245 PS DIN (180 kW; 242 hp).

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 195 kW (261 hp; 265 PS) at 5,400 rpm and torque of 365 N⋅m (269 lb⋅ft) at 4,400 rpm.

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 4,000 rpm.

The 1UZ-FE was voted to the Ward's 10 Best Engines list for 1998 through 2000. [4] [5]

Applications (calendar years):

2UZ-FE

2UZ-FE V8 2UZ-FE.jpg
2UZ-FE

The 2UZ-FE was a 4.7 L; 284.6 cu in (4,663 cc) version built in Tahara, Aichi, Japan and at Toyota Motor Manufacturing Alabama. Unlike its other UZ counterparts, this version uses a cast iron block to increase durability, as it was designed for low-revving, high-torque pickup and SUV applications. Its bore and stroke is 94 mm × 84 mm (3.70 in × 3.31 in). [2] Output varies by implementation, but one VVT-i variant produces 202 kW (271 hp; 275 PS) at 4800 rpm with 427 N⋅m (315 lb⋅ft) of torque at 3400 rpm. JDM versions produce 173 kW (232 hp; 235 PS) at 4800 rpm and 422 N⋅m (311 lb⋅ft) at 3600 rpm, while Australian models produce 170 kW (228 hp; 231 PS) at 4800 rpm and 410 N⋅m (302 lbf⋅ft) at 3600 rpm. [2]

Like the 1UZ-FE, it has aluminum DOHC cylinder heads, multi-port fuel injection, 4 valves per cylinder with bucket tappets, one-piece cast camshafts, and a cast aluminum intake manifold. For 2010, it was replaced by the 1UR-FE or 3UR-FE, depending on the country.

Applications (calendar years): [7]

Toyota Racing Development offered a bolt-on supercharger kit for the 2000–2003 Tundra/Sequoia and the 1998–2003 LX 470.

Another 2UZ-FE variation adds VVT-i, electronic throttle control, and a plastic intake manifold.

Applications (calendar years): [7]

3UZ-FE

3UZ-FE Lexus 3UZ-FE.jpg
3UZ-FE

The 3UZ-FE is a 4.3 L; 261.9 cu in (4,292 cc) version built in Japan. Bore and stroke is 91 mm × 82.5 mm (3.58 in × 3.25 in) . [2] Output is 216 to 224 kW (290 to 300 hp; 294 to 305 PS) at 5600 rpm with 441 N⋅m (325 lb⋅ft) of torque at 3400 rpm. The engine block and heads are aluminum. It has a DOHC valvetrain with 4 valves per cylinder and VVT-i. It uses SEFI fuel injection. In 2003, the engine was paired with a six-speed automatic transmission, resulting in improved fuel economy over the previous five-speed automatic. [2]

A 4.5L version replaced the 3S-GTE as the engine used in Toyota's 500 hp (373 kW) Super GT race cars up to 2009[ citation needed ] and a 5.0L version was used in the Grand American Road Racing (Grand Am) Series. [8]

Applications (calendar years): [2]

Derivatives

FV2400-2TC

In 1997, the US Federal Aviation Administration granted production certification for the FV2400-2TC, a twin-turbocharged airplane powerplant based on the 1UZ-FE. [9] The 360 hp (268 kW; 365 PS) FV2400 was developed in partnership with Hamilton Standard, which provided the digital engine-control system. [9] The goal was to produce a four-seat propeller aircraft. [10]

VT300i

In 1998, a marine derivative of the UZ powerplant was produced for boating applications. The 4.0 L VT300i engine, producing 224 kW; 304 PS (300 hp) at 6000 rpm and 420 N⋅m (310 lb⋅ft) at 4200 rpm, used the same block as the UZ engine on the Lexus SC 400, GS 400, and LS 400.

Applications (calendar years):

Related Research Articles

<span class="mw-page-title-main">Lexus SC</span> Motor vehicle

The Lexus SC is a grand tourer that was retailed by Lexus, and built from 1991 until 2010. It features a front-engine, rear-wheel-drive design and seating for up to four passengers. The first-generation SC debuted as the V8-powered SC 400 in 1991, and the I6-powered SC 300 was added in 1992. Both first-generation models were produced until 2000. The second-generation model, the SC 430, went into production in 2001. The SC 430 features a hardtop convertible design and a V8 engine. The first-generation SC was largely styled in California at Calty, and the second-generation SC was mainly conceived at design studios in Europe.

<span class="mw-page-title-main">Toyota Soarer</span> Personal luxury car/grand tourer made by Toyota

The Toyota Soarer is a personal luxury GT coupé produced from 1981 to 2005 by Toyota and sold in Japan. It was available at both Japanese Toyota dealerships called Toyota Store and Toyopet Store, and it debuted with the Z10 series, replacing the Toyopet Store exclusive Mark II coupé, and the Toyota Store exclusive Crown coupé.

<span class="mw-page-title-main">Toyota JZ engine</span> Reciprocating internal combustion engine

The Toyota JZ engine family is a series of inline-6 automobile engines produced by Toyota Motor Corporation. As a replacement for the M-series inline-6 engines, the JZ engines were 24-valve DOHC engines in 2.5- and 3.0-litre versions.

<span class="mw-page-title-main">Toyota NZ engine</span> Reciprocating internal combustion engine

The Toyota NZ engine family is a straight-4 piston engine series. The 1NZ series uses aluminum engine blocks and DOHC cylinder heads. It also uses sequential fuel injection, and has 4 valves per cylinder with VVT-i.

<span class="mw-page-title-main">Toyota ZZ engine</span> Reciprocating internal combustion engine

The Toyota ZZ engine family is a straight-4 piston engine series. The ZZ series uses a die-cast aluminium engine block with thin press-fit cast iron cylinder liners, and aluminium DOHC 4-valve cylinder heads. The camshafts are chain-driven. The two 1.8 L members of the family, the 1ZZ and 2ZZ, use different bore and stroke. The former was optimised for economy, with torque emphasised in lower revolutions per minute operating range, while the latter is a "square" design optimised for high-RPM torque, yielding higher peak power. The ZZ family replaced the extremely popular cast-iron block 4A engines.

<span class="mw-page-title-main">Toyota AZ engine</span> Reciprocating internal combustion engine

The Toyota AZ engine family is a straight-4 piston engine series. The AZ series uses an aluminium engine block with cast iron cylinder liners and aluminium DOHC cylinder head. The engine series features many advanced technologies including slant-squish combustion chambers, offset cylinder and crank centers, and the VVT-i continuously variable intake valve timing system. The aluminium engine measures 626 mm (24.6 in) long, 608 mm (23.9 in) wide, and 681 mm (26.8 in) tall.

<span class="mw-page-title-main">Toyota RZ engine</span> Reciprocating internal combustion engine

The Toyota RZ engine family is a straight-four piston engine series built in Japan. The RZ series uses a cast-iron engine block and aluminum SOHC or DOHC cylinder heads. It has electronic fuel injection (EFI), 2 or 4 valves per cylinder and features forged steel connecting rods.

<span class="mw-page-title-main">Toyota MZ engine</span> Reciprocating internal combustion engine

The Toyota MZ engine family is a piston V6 engine series. The MZ series has an aluminium engine block and aluminium alloy DOHC cylinder heads. The cylinders are lined with cast iron, and is of a closed deck design. The engine is a 60 degree V6 design. It uses multi-port fuel injection (MFI), four valves per cylinder, a one-piece cast camshaft and a cast aluminium intake manifold. The MZ family is a lightweight V6 engine of an all-aluminium design, using lighter weight parts than the heavier duty VZ block engines in an effort to lower production costs, decrease engine weight, and decrease reciprocating weight without sacrificing reliability. Toyota sought to enhance the drivability pattern of the engine at exactly 3000 rpm, since that was the typical engine speed for motors cruising on the highway. The result was less cylinder distortion coupled with the decreased weight of rotating assemblies, smoother operation at that engine speed, and increased engine efficiency.

<span class="mw-page-title-main">Toyota VZ engine</span> Reciprocating internal combustion engine

The Toyota VZ engine family is a series of V6 gasoline piston engines ranging from 2.0 to 3.4 L in displacement and both SOHC and DOHC configurations. It was Toyota's first V6 engine, being made as a response to Nissan’s VG engine, one of Japan’s first mass-produced V6 engines.

<span class="mw-page-title-main">Toyota G engine</span> Reciprocating internal combustion engine

The Toyota Motor Corporation G-family engine is a family of straight-6 piston engines produced from 1979 to 2008. It is notable in that only a single displacement, 2.0 L (1,988 cc), was produced in this series. Initially belt-driven OHC non-interference engines, multivalve DOHC and variable valve timing were added later during the production run. The 1G-GEU was Toyota's first mass produced four-valve twincam engine. A prototype version of the 1G-GEU called the LASREα–X, featuring twin-turbos, variable valve timing and intake as well as variable displacement, was fitted to the Toyota FX-1 show car at the 1983 Tokyo Motor Show. It showcased a number of technologies which were later to become commonplace.

Toyota Motor Corporation's A family is a family of automatic FWD/RWD/4WD/AWD transmissions built by Aisin-Warner. They share much in common with Volvo's AW7* and Aisin-Warner's 03-71* transmissions, which are found in Suzukis, Mitsubishis, and other Asian vehicles.

<span class="mw-page-title-main">Toyota GR engine</span> Reciprocating internal combustion engine

The Toyota GR engine family is a gasoline, open-deck, piston V6 engine series. The GR series has a 60° die-cast aluminium block and aluminium DOHC cylinder heads. This engine series also features 4 valves per cylinder, forged steel connecting rods and crankshaft, one-piece cast camshafts, a timing chain, and a cast aluminium lower intake manifold. Some variants use multi-port fuel injection, some have D4 direct injection, and others have a combination of direct injection and multi-port fuel injection or D4-S.

<span class="mw-page-title-main">Toyota S engine</span> Reciprocating internal combustion engine

The Toyota S Series engines are a family of straight-four petrol engines with displacements between 1.8 and 2.2 litres, produced by Toyota Motor Corporation from January 1980 to August 2007. The S series has cast iron engine blocks and aluminium cylinder heads.

<span class="mw-page-title-main">Toyota UR engine</span> Type of engine made by Toyota

The Toyota UR engine family is a 32-valve dual overhead camshaft V8 piston engine series which was first introduced in 2006, as the UZ series it replaced began phasing out. Production started with the 1UR-FSE engine with D-4S direct injection for the 2007 Lexus LS. The series launched with a die-cast aluminum engine block, aluminum cylinder heads and magnesium cylinder head covers. All UR engines feature variable valve timing for both intake and exhaust cams or Dual VVT-i. Timing chains are used to drive the camshafts. The UR engine has been produced in 4.6, 5.0, and 5.7-liter displacement versions.

<span class="mw-page-title-main">Toyota TR engine</span> Reciprocating internal combustion engine

The Toyota TR engine is a family of gasoline engines that appeared in 2004. They are mainly used for Toyota Hilux and other vehicles in the Toyota IMV platform; and are designed to be mounted longitudinally for pickup RWD and 4WD pickup applications.

<span class="mw-page-title-main">Toyota ZR engine</span> Type of engine created by Toyota

The ZR engine is a family of straight-four 16-valve all-aluminum and water cooled gasoline engines with a die-cast aluminum block and variable valve timing developed by Toyota Motor Corporation, produced from 2007. Engines displace from 1.6 to 2.0 liters. Most engines in this family are equipped with Toyota's dual VVT-i technology that optimizes both intake and exhaust valve timing. This engine family is also the first to use Toyota's Valvematic system, first appearing on the Noah and Voxy in 2007 and then the European Avensis in 2009.

<span class="mw-page-title-main">Toyota Crown Majesta</span> Motor vehicle

The Toyota Crown Majesta is a full-size luxury sedan from Toyota. It is an upmarket variant of the Crown and serves as Toyota's flagship model in various countries.

<span class="mw-page-title-main">Toyota AR engine</span> Toyota 4-cylinder engine introduced in 2008

The AR engine family is an Inline-4 piston engine series by Toyota, first introduced in 2008 for the RAV4, and subsequently for the Highlander, Venza, Camry and Scion tC.

<span class="mw-page-title-main">Toyota NR engine</span> Reciprocating internal combustion engine

The Toyota NR engine family is a series of small inline-four piston engines designed and manufactured by Toyota, with capacities between 1.2 and 1.5 litres.

References

  1. "Toyota Gasoline 2UZ-FE Engine". WikiMotors. Retrieved 2016-07-27.
  2. 1 2 3 4 5 6 7 8 9 "The Toyota UZ-series Engine Guide". AutoSpeed. Archived from the original on 2009-08-02. Retrieved 2009-08-11.
  3. "TOYOTA CROWN MAJESTA catalog - reviews, pics, specs and prices | Goo-net Exchange". www.goo-net-exchange.com. Retrieved 2016-09-06.
  4. Visjic, Bill (1998-01-01). "Revved up! The 10 best engines of 1998". Ward's Auto World. Archived from the original on 2007-02-11. Retrieved 2007-05-15.
  5. Visnic, Bill (2000-02-01). "10 Best Engines 2000". Ward's Auto. Retrieved 2017-09-03.
  6. 1 2 3 Visnic, Bill (1998-01-01). "Toyota/Lexus 4L DOHC V-8". Ward's Auto World. US. Archived from the original on 2004-11-05.
  7. 1 2 "Used Car Information - MSN Autos". Microsoft. Archived from the original on 2008-12-17. Retrieved 2009-01-02.
  8. "Toyota Outlines Motor Sports Activities for 2009" (Press release). Japan: Toyota. 2009-03-16. Archived from the original on 2009-07-06.
  9. 1 2 "Toyota is cleared to produce piston aero-engine". 1997-01-08. Retrieved 2017-09-20 via Flight Global.
  10. "Look, Up in the Air, It May Be a Toyota". The New York Times. 1996-12-20. Retrieved 2017-09-20.
  11. Plueddeman, Clarles (July 1998). "Rising Fun - Toyota 21: Where does Godzilla go skiing..." Boating. US.
  12. "Toyota Epic S22". Waterski Magazine. US. 2001-06-15. Archived from the original on 2011-07-19. Retrieved 2017-09-03.
  13. "Toyota Epic X22". Waterski Magazine. US. 2001-06-15. Archived from the original on 2012-03-23. Retrieved 2017-09-03.
  14. "Toyota Launches Into Wakeboarding with Epic X22". WakeWorld. US. 1999-01-19. Archived from the original on 2001-06-27. Retrieved 2007-05-15.

See also