DESCRIPTION
The 3UR-FE engine is a 5.7-liter, 32-valve DOHC V8. This engine uses the Dual Variable Valve Timing-intelligent (VVT-i) system, Direct Ignition System (DIS), Acoustic Control Induction System (ACIS), Electronic Throttle Control System-intelligent (ETCS-i), and air injection control*. These control functions achieve improved engine performance, fuel economy, and clean emissions.
*: Models with air injection control
| No. of Cyls. and Arrangement | 8-cylinder, V Type | ||
| Valve Mechanism | 32-valve DOHC, Chain Drive (with Dual VVT-i) | ||
| Combustion Chamber | Pentroof Type | ||
| Manifolds | Cross-Flow | ||
| Fuel System | EFI | ||
| Ignition System | DIS | ||
| Displacement | 5663 cm3 (345.6 cu. in.) | ||
| Bore x Stroke | 94.0 mm x 102.0 mm (3.70 in. x 4.02 in.) | ||
| Compression Ratio | 10.2 : 1 | ||
| Max. Output (ECC) | 270 kW @ 5600 rpm | ||
| Max. Torque (ECC) | 530 N*m @ 3200 rpm | ||
| Valve Timing | Intake | Open | - 2° to 58° BTDC |
| Close | 70° to 10° ABDC | ||
| Exhaust | Open | 62° to 32° BBDC | |
| Close | 0° to 30° ATDC | ||
| Firing Order | 1 - 8 - 7 - 3 - 6 - 5 - 4 - 2 | ||
| Research Octane Number (RON) | 91 or higher | ||
| Emission Regulation | EURO 4 | ||
| Engine Service Mass* (Reference) | 219.3 kg (483.5 lb) | ||
*: The figure shown is the weight of the part without coolant and oil.
Figure 1. Valve Timing