OUTLINE
The 8NR-FTS engine is an in-line, 4-cylinder, 1.2-liter, 16-valve DOHC, turbocharged engine with intercooler. This engine is a Direct injection 4-stroke gasoline engine (D-4). In addition, this engine uses the Variable Valve Timing-intelligent Wide (VVT-iW) control, Variable Valve Timing-intelligent (VVT-i) control, Direct Ignition System (DIS), Electronic Throttle Control System-intelligent (ETCS-i). It has been developed to achieve high performance, quietness, fuel economy and clean emissions.
This engine uses ESTEC D-4T.
Tech Tips
Economy with Superior Thermal Efficient Combustion (ESTEC): An engine series which achieves thermal efficiency (fuel economy) improvements through continuous improvements to engine combustion.
Direct injection 4-stroke gasoline engine with Turbo (D-4T): A direct injection technology which uses a system to comprehensively perform supercharging control for the D-4 system and turbocharger to achieve a higher dimension of high tumble flow and turbo pressure control by optimizing the cylinder head ports and shape of the piston faces. As a result, fuel economy and low-speed torque are achieved.
SPECIFICATION
| Item | Specification | ||
|---|---|---|---|
| Engine Type | 8NR-FTS | ||
| No. of Cyls. and Arrangement | 4-cylinder, In-line | ||
| Valve Mechanism | 16-valve DOHC, Chain Drive (with VVT-iW and VVT-i) | ||
| Combustion Chamber | Pentroof Type | ||
| Manifolds | Cross-flow | ||
| Fuel System | Sequential Multiport Fuel Injection (SFI) D-4 | ||
| Ignition System | Direct Ignition System (DIS) | ||
| Displacement | 1197 cm3(73.0 cu. in.) |
||
| Bore x Stroke | 71.5 x 74.5 mm (2.81 x 2.93 in.) | ||
| Compression Ratio | 10.0 : 1 | ||
| Max. Output (EEC) | 85 kW @ 5200 to 5600 rpm | ||
| Max. Torque (EEC) | 185 N*m @ 1500 to 4000 rpm | ||
| Valve Timing | Intake | Open | -29° to 41° BTDC |
| Closed | 99° to 29° ABDC | ||
| Exhaust | Open | 34° to -6° BBDC | |
| Closed | -4° to 36° ATDC | ||
| Spark Plug | Manufacture | NGK | |
| Type | DILKAR8J9G | ||
| Plug Gap | 0.8 to 0.9 mm (0.0315 to 0.0354 in.) | ||
| Firing Order | 1 - 3 - 4 - 2 | ||
| Research Octane Number (RON) | 95 or higher | ||
| Emission Regulations* | EURO 5+, EURO 6 | ||
Tech Tips
*: Emission regulations differ by country and region.
MAIN FEATURES
The following performance features have been achieved for the 8NR-FTS engine through the use of the items listed below:
(A): High performance and reliability
(B): Low noise and vibration
(C): Lightweight and compact design
(D): Good serviceability
(E): Clean emissions and fuel economy
| Item | (A) | (B) | (C) | (D) | (E) |
|---|---|---|---|---|---|
| A high-expansion cycle (Atkinson cycle) is used. | ○ | - | - | - | ○ |
| Variable Valve Timing-intelligent Wide (VVT-iW) is used. | ○ | - | - | - | ○ |
| Variable Valve Timing-intelligent (VVT-i) is used. | ○ | - | - | - | ○ |
| A cylinder head sub-assembly made of aluminum alloy is used. | - | ○ | ○ | - | - |
| A cylinder block sub-assembly made of aluminum alloy is used. | - | ○ | ○ | - | - |
| A stiffening crankcase assembly made of aluminum alloy is used. | - | ○ | ○ | - | - |
| A cylinder head sub-assembly with integrated exhaust manifold is used. | ○ | - | - | - | ○ |
| No. 1 valve rocker arm sub-assemblies are used. | ○ | ○ | - | ○ | ○ |
| Valve rush adjuster assemblies are used. | ○ | ○ | - | ○ | - |
| A sodium-filled valve is used. | ○ | - | - | - | - |
| A piston made of aluminum alloy is used. | - | - | ○ | - | ○ |
| The piston skirt is coated with resin. | ○ | - | - | - | ○ |
| Piston jets (No. 1 oil nozzle sub-assemblies) for cooling pistons are used. | ○ | - | - | - | ○ |
| Spiny-type liners are used in the cylinder bores. | ○ | - | - | - | ○ |
| An offset crankshaft is used. | ○ | - | - | - | ○ |
| A timing chain and chain tensioner are used. | - | ○ | - | ○ | - |
| An intake manifold made of plastic is used. | - | - | ○ | - | - |
| A turbocharger is used. | ○ | ○ | ○ | - | ○ |
| A water cooled type intercooler assembly is used. | ○ | - | ○ | - | ○ |
| A thermostat for cylinder block is used. | ○ | - | - | - | ○ |
| The Electronic Throttle Control System-intelligent (ETCS-i) is used. | ○ | - | - | - | ○ |
| The Direct injection 4-stroke gasoline engine (D-4) system is used. | ○ | - | - | - | ○ |
| A slit nozzle type high pressure fuel injector assembly is used. | ○ | ○ | ○ | - | ○ |
| Iridium-tipped spark plugs are used. | ○ | - | - | - | ○ |
| The wastegate valve control is used. | ○ | - | - | - | ○ |
| The air bypass valve control is used. | - | ○ | - | - | - |
| The piston jet control system is used. | ○ | - | - | - | ○ |
Tech Tips
○: Applicable
-: Not applicable