Toyota 2UZ engine characteristics
| Parameter | Value |
|---|---|
| Manufacturing | Toyota Motor Manufacturing Alabama |
| Engine make | 2UZ |
| Years of production | 1998-2011 |
| Cylinder block material | Cast iron |
| Power system | Injector |
| Type | V-shaped |
| Number of cylinders | 8 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 84 |
| Cylinder diameter, mm | 94 |
| Compression ratio | 9.6 |
| Engine displacement, cc | 4664 |
| Engine power, hp/rpm | 230/4800, 232/4800, 271/4800 (VVTi), 282/4800 (VVTi) |
| Torque, Nm/rpm | 410/3600, 422/3600, 427/3400 (VVTi), 440/3400 (VVTi) |
| Fuel consumption, l/100 km | City: 16.5, Highway: 10.0, Mixed: 12.5 |
| Oil consumption, gr./1000 km | To 1000 |
| Engine oil | 0W-30, 5W-30, 5W-40, 10W-30, 10W-40 |
| How much oil in the engine, liters | 6.2 |
| Oil change is carried out, km | 7000-10000 |
| Engine operating temperature, deg. | – |
| Engine life, thousand km | Factory data: -, In practice: 400+ |
| Tuning, hp | Potential: 1000+, Without loss of resource: – |
| Motor installed | Toyota 4Runner, Toyota Land Cruiser, Toyota Sequoia, Toyota Tundra, Lexus GX 470, Lexus LX 470 |
Reliability, problems and repair of the Toyota 2UZ engine
In 1998, the largest representative of the UZ family appeared under the name 2UZ. Slowly this motor began to displace the big inline six 1FZ. Unlike its 1UZ and 3UZ brethren, the 2UZ-FE engine received a cast iron cylinder block to increase reliability and durability. At the same time, the cylinder diameter has increased to 94 mm, and a crankshaft with a piston stroke of 84 mm is used. As a result, the engine has a rather low engine with a working volume of 4.7 liters.
The cylinder heads are aluminum, twin-shaft, with 4 valves per cylinder. The first versions were not equipped with VVTi and had an output of 230-232 hp. Since 2005, these engines received VVTi system and the power increased to 270-280 hp.
The 2UZ uses a toothed timing belt, replacement of which is required every 100 thousand kilometers.
The 2UZ engine was produced until 2011, when it gave way to the newer 1UR-FE.
Toyota 2UZ 4.7 engine problems
- The most significant disadvantage is the huge fuel consumption
- It is periodically necessary to adjust the thermal clearances of the valves
- Low life of the timing belt and pump, often less than 100 thousand kilometers
- The hydraulic tensioner breaks very easily during timing belt replacement
Benefits:
- Reliability and durability: Thanks to the robust cast iron cylinder block, the 2UZ engine is known for its durability and reliability, which is confirmed by a practical life of more than 400 thousand kilometers.
- High tuning potential: The engine has the potential to significantly increase power to 1000+ hp
- Multiplicity of applications: It has been installed in a wide range of vehicles such as Toyota 4Runner, Toyota Land Cruiser, Toyota Sequoia, Toyota Tundra, as well as Lexus GX 470 and LX 470.
Disadvantages:
- Fuel consumption: High fuel consumption, especially in city conditions, which can be a significant disadvantage for owners seeking fuel efficiency.
- Oil consumption: The engine can consume up to 1,000 grams of oil per 1,000 kilometers, which requires regular oil level checks.
- Lack of operating temperature data: Lack of information on engine operating temperature can make it difficult to monitor and diagnose engine health.
Recommendations for use:
- Timely oil change: It is recommended to change oil every 7000-10000 km, using oils that meet the specifications (0W-30, 5W-30, 5W-40, 10W-30, 10W-40).
- Oil consumption control: Check the oil level regularly to avoid problems with oil shortage.
- Cooling system maintenance: Make sure the cooling system is working properly to avoid engine overheating and related problems.
The UZ engine family has been extremely successful and trouble free, these motors have no design flaws or shortcomings. Normal operation with regular maintenance and the use of quality oil will keep you from thinking about the condition of the motor. The resource of 2UZ-FE engines is more than 500 thousand kilometers.
Tuning the engine Toyota 2UZ
Compressor. Turbo
The easiest way to increase the power of this motor will be to buy a compressor kit from TRD, on sale you can find used versions. Such kits are put bolt-on and provide up to 350 hp.
Otherwise it is the same representative of the UZ family and tuned similarly.
ENGINE RATING: 5