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.
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.
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
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
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.
Honda Today
Honda Beat
Honda Life
Honda Acty
Honda Z
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
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
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
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)
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)
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
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
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)