ENGINE UNIT


  1. OUTLINE


    1. The 2AR-FE engine is an in-line, 4-cylinder, 2.5-liter, 16-valve DOHC engine. This engine uses the Dual Variable Valve Timing-intelligent (Dual VVT-i) system, Direct Ignition System (DIS), Acoustic Control Induction System (ACIS) and Electronic Throttle Control System-intelligent (ETCS-i). It has been developed to achieve high performance, quietness, fuel economy and clean emissions.

  2. SPECIFICATION

    No. of Cyls. and Arrangement 4-cylinder, In-line
    Valve Mechanism

    16-valve DOHC, Chain Drive

    (with Dual VVT-i)
    Combustion Chamber Pentroof Type
    Manifolds Cross-flow
    Fuel System Sequential Multiport Fuel Injection (SFI)
    Ignition System Direct Ignition System (DIS)
    Displacement

    2494 cm3(152.2 cu. in.)
    Bore x Stroke 90.0 x 98.0 mm (3.54 x 3.86 in.)
    Compression Ratio 10.4 : 1
    Max. Output (SAE-NET) 132 kW @ 6000 rpm*1
    131 kW @ 6000 rpm*2
    Max. Torque (SAE-NET) 233 N*m @ 4100 rpm
    Valve Timing Intake Open 3° to 43° BTDC
    Closed 61° to 21° ABDC
    Exhaust Open 60° to 20° BBDC
    Closed 4° to 44° ATDC
    Spark Plug Manufacture DENSO
    Type SK16HR11
    Plug Gap 1.0 to 1.1 (0.039 in. to 0.043 in.)
    Firing Order 1 - 3 - 4 - 2
    Research Octane Number 91 (Octane Rating 87) or higher
    Emission Regulation*3 EURO 5
    BRLEV 2
    BRLEV 2+
    ULEV2
    Engine Service Mass (Reference)*4 147 kg (324.0 lb)

    • *1: Except models for Korea

    • *2: Models for Korea

    • *3: Emission regulation differ by country and region.

    • *4: Weight shows the figure with oil and engine coolant fully filled.

    Tech Tips

    Toyota allows the use of ethanol blended gasoline where the ethanol content is up to 10%. Make sure that the ethanol blended gasoline to be used has a Research Octane Number that follows the above.

  3. MAIN FEATURES


    1. The following performance features have been achieved for the 2AR-FE engine through the use of the items listed below:


      1. High performance and reliability

      2. Low noise and vibration

      3. Lightweight and compact design

      4. Good serviceability

      5. Clean emissions and fuel economy

        Item (1) (2) (3) (4) (5)
        Engine Proper A cylinder head cover sub-assembly made of magnesium alloy is used. - - ○ - -
        A taper squish shape is used for the combustion chamber. ○ - - - ○
        Spiny-type liners are used in the cylinder bores. ○ - ○ - ○
        A cylinder block water jacket spacer is used. ○ - - - ○
        The piston skirt is coated with resin. ○ ○ - - ○
        Low tension piston rings are used. ○ - - - ○
        A resin gear balance shaft is used. - ○ ○ - -
        Valve Mechanism A timing chain and chain tensioner are used. - ○ - ○ -
        Valve lash adjuster assemblies are used. - ○ - ○ -
        Valve rocker arm sub-assemblies are used. ○ - - - ○
        Lubrication System An oil filter with a replaceable element is used. - - - ○ -
        Cooling System TOYOTA Genuine Super Long Life Coolant (SLLC) is used. - - - ○ -
        Intake and Exhaust System A charcoal filter is used in the air cleaner cap.*1 - - - - ○
        An intake manifold made of plastic is used. - - ○ - -
        A linkless-type throttle body assembly is used. - - ○ ○ ○
        A thin-wall ceramic Three-Way Catalyst (TWC) is used. - - - - ○
        Fuel System A fuel returnless system is used. - - ○ ○ ○
        Quick connectors are used to connect the fuel hose with the fuel pipe. - - ○ ○ ○
        12-hole type fuel injector assemblies with high atomizing performance are used. ○ - - - ○
        Serpentine Belt Drive System A serpentine belt drive system is used. - - ○ ○ -
        Engine Control System Long-reach type iridium-tipped spark plugs are used. ○ - - ○ ○
        The Direct Ignition System (DIS) makes ignition timing adjustment unnecessary. ○ - - ○ ○
        An Electronic Throttle Control System-intelligent (ETCS-i) is used. ○ - - - ○
        A Dual Variable Valve Timing-intelligent (Dual VVT-i) system is used. ○ - - - ○
        An Acoustic Control Induction System (ACIS) is used. ○ - - - ○
        A tumble control system is used.*1 ○ - - - ○
        A starter control (cranking hold function) is used.*2 ○ - - - -

        • *1: Models for Brazil and Korea

        • *2: Models with entry and start system

        Tech Tips

        ○: Applicable

        -: Not applicable