Circle L engine
The Circle L is an automobile engine produced by GM Powertrain Poland in Poland. It is a 1.7 L; 102.9 cu in (1,686 cc) inline-four 16-valve turbocharged diesel engine originally designed by Isuzu but now owned by General Motors. The engine was produced in Europe by General Motors for use in the Opel, Vauxhall and Chevrolet vehicles and by Honda for use in the Civic compact car.
| Circle L engine | |
|---|---|
| Overview | |
| Manufacturer | GM Powertrain Poland |
| Layout | |
| Configuration | Inline-4 |
| Displacement | 1.7 L; 102.9 cu in (1,686 cc) |
| Cylinder bore | 79 mm (3.11 in) |
| Piston stroke | 86 mm (3.39 in) |
| Cylinder head material | Aluminium alloy |
| Valvetrain | DOHC |
| Compression ratio | 16.5:1, 18.2:1, 18.4:1 |
| Combustion | |
| Turbocharger | Mitsubishi TD025 variable-geometry |
| Fuel system | Common rail direct injection |
| Management | Denso or Bosch |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Output | |
| Power output | 65–130 PS (48–96 kW) |
| Torque output | 130–300 N⋅m (96–221 lb⋅ft) |
| Emissions | |
| Emissions target standard | Euro 3, 4 & 5 |
| Emissions control systems | EGR |
| Chronology | |
| Successor | MDE engine |
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