Puneet Varma (Editor)

Honda E07A engine

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The E07A is a three-cylinder gasoline engine developed and manufactured by Honda, with a total displacement of 656 cc. The engine is intended for light-vehicle applications. The E05A and E07A were replaced by the Honda P engine.

Contents

The E07A is based on the Honda EH Engine, a SOHC 2-cylinder engine. Like the Honda D engine, it rotates anti-clockwise from the timing belt side. The engine was available with either a computer-controlled variable venturi-type side draft carburetor (PGM-CARB) or a multi-point fuel-injected (PGM-FI) version.

Utilizing a cross-flow design, the intake and exhaust valves are opened and closed by the rocker arm driven by a camshaft timing belt. The two intake and two exhaust valves are positioned on either side of the spark plug which is mounted on the top center of the combustion chamber. The cylinder block and cylinder bore are made of die-cast aluminum, as are the valve covers and oil pan. Early Japanese emissions requirements for passenger automobiles required that exhaust gas purification be accomplished by means of a three-way catalyst. The requirement was later amended to include commercial vehicles as well.

E05A (PGM-CARB)

  • SOHC 12 valve CV carburetor
  • Displacement: 547cc
  • Inside diameter × stroke: 62.5 × 59.5
  • Compression ratio: 9.8
  • Horsepower: 26 kW (35 hp) / 6,500 rpm
  • Torque: 44 N·m (4.5 kg·m) / 5,200 rpm
  • 1988-1990 Honda Today
  • 1988-1990 Honda Acty
  • E05A (PGM-FI)

  • PGM-FI SOHC 12 Valve
  • Displacement: 547cc
  • Bore × Stroke (mm): 62.5 × 59.5
  • Compression ratio: 9.8
  • Horsepower: 32 kW (43 hp) or 42 PS (31 kW) / 8,000 rpm (Today)
  • Torque: 4.7 kg·m (46 N·m) or 45 N·m (4.6 kg·m) / 4,500 rpm (Today)
  • 1988-1990 Honda Today
  • 1988-1990 Honda Acty
  • E07A Basic specifications

  • Water-cooled 3-cylinder
  • Gasoline Fuel
  • 656cc total displacement
  • 2 belt drive mechanism of the intake and exhaust valve SOHC 2
  • Bore × Stroke (mm): 66.0 × 64.0
  • There were three versions of fuel supply systems for this motor: Carburetor (PGM-CARB), fuel injection (PGM-FI) and MTREC (Multi Throttle Responsive Engine Control). The MTREC version of this engine has the highest power output of the various configurations.
  • Vehicles equipped with E07A

  • Honda Today
  • Honda Beat
  • Honda Life
  • Honda Acty
  • Honda Z
  • E07A (PGM-CARB)

  • SOHC 12 Valve CV carbureto
  • Displacement: 656cc
  • Bore × Stroke (mm): 66.0 × 64.0
  • Horsepower: 31 kW (42 hp) / 6,000 rpm
  • Torque: 53 N·m (5.4 kg·m) / 5,000 rpm
  • JA2 Honda Today
  • E07A (PGM-FI)

  • SOHC 12 Valve PGM-FI
  • Displacement: 656cc
  • Bore × Stroke (mm): 66.0 × 64.0
  • Horsepower: 43 kW (58 hp) / 6,300 rpm
  • Torque: 57 N·m (5.8 kg·m) / 5,500 rpm
  • JA4 Honda Today
  • E07A (MTREC)

    In order to extract higher horsepower from a naturally aspirated engine, Honda modified the E07A with a MTREC (Multi Throttle Responsive Engine Control) system, placing individual throttle-bodies on each of the three cylinders.

    The system modified the air-fuel ratio of individual cylinders based on RPM to give sharper throttle response while also maintaining a stable idle.

  • E07A (MTREC version)
  • SOHC 12 valve MTREC
  • Displacement: 656cc
  • Bore × Stroke (mm): 66.0 × 64.0
  • Horsepower: 47 kW (63 hp) / 8,100 rpm
  • Torque: 60 N·m (6.1 kg·m) / 7,000 rpm
  • PP1 Honda Beat
  • JA4 Honda Today
  • E07Z

  • PGM-FI SOHC 12 Valve
  • Displacement: 656cc
  • Bore × Stroke (mm): 66.0 × 64.0
  • Horsepower: 39 kW (53PS) / 7,000 rpm
  • Torque: 61N m (6.2 kg m) / 4,000 rpm (HM2 Honda Vamos)
  • Honda Acty truck (HA6 / 7)
  • Honda Acty van (HH5 / 6)
  • Honda Vamos / Honda Vamos Hobio (HM1 / 2)
  • Honda Vamos Hobio (commercial grade HJ1 / 2)
  • Honda Life (JB1 / 2)
  • Honda Z (PA1)
  • Honda That's (JD1/2)
  • E07Z (turbo version)

  • PGM-FI SOHC 12 valve turbo
  • Displacement: 656cc
  • Bore × Stroke (mm): 66.0 × 64.0
  • Horsepower: 47 kW (64PS) / 6,000 rpm
  • Torque: 93N m (9.5 kg m) / 3,700 rpm (HM1 Vamos)
  • Honda Vamos / Vamos Hobio (HM1 / 2)
  • Honda Life Dunk (JB3 / 4)
  • Honda Z (PA1)
  • Honda That's (JD1/2)
  • S07A (Earth Dreams)

  • PGM-FI DOHC 12 Valve
  • VTC (continuous variable valve timing)
  • Displacement: 656cc
  • Bore × Stroke (mm): 64.0 × 68.2
  • Horsepower: 43 kW (58PS) / 7,300 rpm
  • Torque: 65N m (6.6 kg m) / 3,500 rpm
  • Compression Ratio: 11.2:1
  • Honda N-One Van
  • Honda N-Box sedan
  • Honda S660 roadster
  • S07A Turbo (Earth Dreams)

  • PGM-FI DOHC 12 Valve
  • VTC (continuous variable valve timing)
  • Turbo Charger
  • Displacement: 656cc
  • Bore × Stroke (mm): 64.0 × 68.2
  • Horsepower: 47 kW (64PS) / 6,000 rpm
  • Torque: 104N m (10.6 kg m) / 2,600 rpm
  • Compression Ratio: 11.2:1
  • Honda S660 (2014+)
  • Honda N-One
  • Honda N-Box
  • ECA1

    The ECA1 engine was used in the first-generation Honda Insight, as part of the car's Integrated Motor Assist gasoline-electric hybrid drive system. A three-cylinder engine, it displaces 995 cc (0.995 L; 60.7 cu in) and features a SOHC 12-valve head. The engine produces 67 hp (50 kW) @ 5700 rpm, 73 hp (54 kW) @ 5700 rpm (with IMA) and 67 lb·ft of torque @ 4800, 91 lb·ft of torque @ 2000 (with IMA) supplemented in various circumstances by a 10 kW permanent magnet DC electric motor adding 13 horsepower (9.7 kW) and 16 lb·ft (22 N·m) torque throughout the entire rpm range.

  • ECA1
  • 2000-2006 Honda Insight
  • SOHC 12 valve VTEC PGM-FI
  • Compression ratio: 10.8:1
  • Displacement: 995cc
  • Inside diameter × stroke: 72.0 × 81.5
  • Horsepower: 67 hp (50 kW) / 73 hp (54 kW) (with IMA) @ 5,700 rpm
  • Torque: 92N m (9.4 kg m) (66 lb·ft) / 4,800 rpm & 91 lb·ft / 2000 rpm (with IMA) (ZE1 Honda Insight)
  • References

    Honda E07A engine Wikipedia