The Toyota UR engine family is a 32-valve quad-camshaft V8 piston engine series which was first introduced in 2006, starting with the 1UR-FSE engine with direct injection for the 2007 Lexus LS. The series launched with a die-cast aluminum block, aluminum heads, and magnesium cylinder covers. The UR engine has been produced in 4.6, 5.0, and 5.7 liter displacement versions. All UR engines feature variable valve timing for both intake and exhaust cams.

4.6L

1UR-FSE

The 1UR-FSE V8 engine, introduced with the Lexus LS 460 & LS 460 L luxury sedans in 2006 has a 4.6 liter (4608cc) displacement, which it gets from a 94 mm bore and 83 mm stroke. The engine includes D-4S gasoline direct injection and dual VVT-iE and produces at 6,400 RPM and at 4,100 RPM.

Applications:

• 2007 Lexus LS 460 & LS 460 L

1UR-FE

The 1UR-FE is based on the 1UR-FSE but lacks the gasoline direct injection D-4S technology. The engine produces at 6,400 RPM and at 4,100 RPM. Due to this power deficit compared to the 1UR-FSE the Middle East market LS 460 (equipped with the 1UR-FE) is 0.6 seconds slower than the 1UR-FSE equipped variant in 0-100km/hr acceleration, at 6.3s.

Applications:

• 2007 Lexus LS 460 & LS 460 L (Middle East)
• 2008 Lexus GS 460

5.0L

2UR-GSE

The 2UR-GSE is a 5 liter (4969 cc) engine and powers the Lexus IS-F. It has D-4S gasoline direct injection, dual VVT-i, and VVT-iE on the intake. Bore of 94 mm and stroke of 89.5 mm, it will produce at 6,600 RPM and at 5,200 RPM.

Applications:

• 2008 Lexus IS-F

2UR-FSE

The 2UR-FSE is a 5 liter (4969 cc) engine and powers the Lexus LS600h. It has D-4S gasoline direct injection, dual VVT-i, and VVT-iE on the intake. It has the same bore and stroke as the 2UR-GSE, but produces at 6,400 RPM and at 4,000 RPM. The electric motors (Lexus Hybrid Drive) in the system add extra power into the drivetrain, allowing the combination to deliver in total.

The engine heads are made from magnesium alloy, while the block is die-cast to save weight.

Applications:

• 2008 Lexus LS 600h & LS 600h L

5.7L

3UR-FE

The 3UR-FE is a 5.7 liter (5663 cc) engine designed for use in Toyota trucks, and as a result, the D-4S gasoline direct injection will not be included, but dual VVT-i will be included. Bore of 94 mm (3.7 in.) and stroke of 102 mm (4.02 in.), it produces 381 hp (283 kW) at 5,600 rpm and 401 ft·lbf (543 Nm)of torque at 3,600 rpm. E85 ethanol capability will be included for the 2009 model year.

Applications:

• 2007 Toyota Tundra
• 2008 Toyota Sequoia
• 2008 Toyota Land Cruiser 200 Series - US market only
• 2008 Lexus LX 570

Footnotes

http://www.toyota.co.jp/en/tech/environment/powertrain/engine/engine2.html

See also

List of Toyota engines