OUTLINE
The 8AR-FTS engine is an in-line, 4-cylinder, 2.0-liter, 16-valve DOHC, turbocharged engine with intercooler. This engine is a Direct injection 4-stroke gasoline engine Superior version (D-4S) which uses both direct injection and port injection systems. 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-4ST.
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 Superior version with Turbo (D-4ST): A direct injection technology which uses a system to comprehensively perform supercharging control for the D-4S 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
| No. of Cyls. and Arrangement | 4-cylinder, In-line | ||
| Valve Mechanism | 16-valve DOHC, Chain Drive, VVT-iW (Intake), VVT-i (Exhaust) | ||
| Combustion Chamber | Pentroof Type | ||
| Manifolds | Cross-flow | ||
| Fuel System | Sequential Multiport Fuel Injection (SFI) D-4S | ||
| Ignition System | Direct Ignition System (DIS) | ||
| Displacement | 1998 cm3 (121.9 cu. in.) | ||
| Bore x Stroke | 86.0 x 86.0 mm (3.39 x 3.39 in.) | ||
| Compression Ratio | 10.0 : 1 | ||
| Max. Output | 175 kW @ 4800 to 5600 rpm*1 | ||
| 175 kW @ 5200 to 5600 rpm*2 | |||
| Max. Torque | 350 N*m @ 1650 to 4000 rpm | ||
| Valve Timing | Intake | Open | 39° to -31° BTDC |
| Closed | 25° to 95° ABDC | ||
| Exhaust | Open | 67° to 17° BBDC | |
| Closed | 3° to 53° ATDC | ||
| Spark Plug | Manufacture | NGK | |
| Type | DILFR7K9G | ||
| Plug Gap | 0.9 mm (0.0355 in.) | ||
| Firing Order | 1 - 3 - 4 - 2 | ||
| Research Octane Number | 95 or higher | ||
| Emission Regulations*3 | EURO 6d-TEMP | ||
| EURO 6 | |||
| Tier 3 | |||
*1: Models without gasoline particulate filter (GPF) system
*2: Models with gasoline particulate filter (GPF) system
*3: Emission regulations differ by country and region.
MAIN FEATURES
The following performance features have been achieved for the 8AR-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 dual-chamber oil pan sub-assembly is used. | ○ | - | - | - | ○ |
| A cylinder head sub-assembly with integrated exhaust manifold is used. | ○ | - | - | - | ○ |
| No. 1 valve rocker arm sub-assemblies are used. | ○ | - | - | - | ○ |
| Valve lash 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 (oil pipe sub-assembly) 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 twin-scroll turbocharger is used. | ○ | ○ | ○ | - | ○ |
| A water cooled type intercooler assembly is used. | ○ | - | ○ | - | ○ |
| A thermostat for cylinder block is used. | ○ | - | - | - | ○ |
| A manifold thermostat is used. | ○ | - | - | - | - |
| A replaceable oil filter element type oil filter is used. | - | - | ○ | - | - |
| The Electronic Throttle Control System-intelligent (ETCS-i) is used. | ○ | - | - | - | ○ |
| The Direct injection 4-stroke gasoline engine Superior version (D-4S) system is used. | ○ | - | - | - | ○ |
| The variable fuel pressure control (low pressure) is used. | ○ | ○ | - | - | ○ |
| A double slit nozzle type high pressure fuel injector assembly is used.*1 | ○ | ○ | ○ | - | ○ |
| A multiple injection holes (6-hole type) high pressure fuel injector assembly is used.*2 | ○ | ○ | ○ | - | ○ |
| A 12-hole type injector assembly is used.*1 | ○ | - | ○ | - | ○ |
| A 10-hole type injector assembly is used.*2 | ○ | - | ○ | - | ○ |
| A variable oil pressure oil pump 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. | ○ | - | - | - | ○ |
*1: Models without gasoline particulate filter (GPF) system
*2: Models with gasoline particulate filter (GPF) system
Tech Tips
○: Available
-: Not available