Suzuki K engine | |
---|---|
Overview | |
Manufacturer | Suzuki |
Production | 1994–present |
Layout | |
Configuration | |
Displacement |
|
Cylinder bore |
|
Piston stroke |
|
Cylinder block material | Aluminium |
Cylinder head material | Aluminium |
Valvetrain | DOHC 4 valves per cylinder with VVT (since 1999)[1] |
Valvetrain drive system | Timing Chain |
Compression ratio | 8.4–13.0:1 |
RPM range | |
Max. engine speed | 6200–8500 rpm |
Combustion | |
Turbocharger | IHI, Mitsubishi |
Fuel system | multipoint fuel injection or direct injection |
Fuel type | |
Oil system | Wet sump |
Cooling system | Water-cooled |
Output | |
Power output | 37–146 PS (36–144 hp; 27–107 kW) |
Torque output | 55–235 N⋅m (6–24 kg⋅m; 41–173 lb⋅ft) |
Chronology | |
Predecessor | |
Successor | Suzuki R engine |
The Suzuki K engine family is a series of automobile engines from Suzuki, introduced in 1994. Displacements range from 0.7 L to 1.5 L. All engines have aluminium cylinder blocks with three or four cylinders in-line. Cylinder heads have two overhead camshafts, driven by chain, and four valves per cylinder. Fuel is gasoline/petrol, metered by multipoint fuel injection or direct injection. Some variants are turbocharged.
Since 2013, some of the K engines range have been upgraded with Dualjet technology.[2] The upgrades include new two injectors per cylinder, increased compression ratio (improving the thermal efficiency), redesigned water jacket shape, piston cooling by oil jets, water-cooled EGR system and several other changes for fuel efficiency.[3] The turbocharged variant with direct injection fuel system is called Boosterjet.[4][5]
Furthermore, a mild hybrid technology with 12 or 48-volt Integrated Starter Generator (ISG) dubbed as Smart Hybrid Vehicle by Suzuki (SHVS) is available for markets with stricter emission regulation, such as Europe, Japan, Singapore and India. This mild hybrid technology helps to increase fuel mileage, providing optional acceleration and also reduces emissions.[6][7] A strong hybrid variant with Motor Generator Unit (MGU) is available in Europe and Japan.