Suzuki K engine

Suzuki K engine
Suzuki K15B engine
Overview
ManufacturerSuzuki
Production1994–present
Layout
Configuration
Displacement
  • 658 cc (0.66 L)
  • 996 cc (1.0 L)
  • 998 cc (1.0 L)
  • 1,171 cc (1.2 L)
  • 1,197 cc (1.2 L)
  • 1,242 cc (1.24 L)
  • 1,373 cc (1.4 L)
  • 1,462 cc (1.5 L)
Cylinder bore
  • 68 mm (2.7 in)
  • 71 mm (2.80 in)
  • 73 mm (2.87 in)
  • 74 mm (2.91 in)
Piston stroke
  • 60.4 mm (2.38 in)
  • 68.6 mm (2.70 in)
  • 71.5 mm (2.81 in)
  • 74 mm (2.91 in)
  • 74.2 mm (2.92 in)
  • 79.5 mm (3.13 in)
  • 82 mm (3.23 in)
  • 83 mm (3.27 in)
  • 85 mm (3.35 in)
Cylinder block materialAluminium
Cylinder head materialAluminium
ValvetrainDOHC 4 valves per cylinder with VVT (since 1999)[1]
Valvetrain drive systemTiming Chain
Compression ratio8.4–13.0:1
RPM range
Max. engine speed6200–8500 rpm
Combustion
TurbochargerIHI, Mitsubishi
Fuel systemmultipoint fuel injection or direct injection
Fuel type
Oil systemWet sump
Cooling systemWater-cooled
Output
Power output37–146 PS (36–144 hp; 27–107 kW)
Torque output55–235 N⋅m (6–24 kg⋅m; 41–173 lb⋅ft)
Chronology
Predecessor
SuccessorSuzuki 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.

  1. ^ "スズキ ワゴンR". www.carsensor.net (in Japanese).
  2. ^ "スズキ・スイフトXS-DJE(FF/CVT) - 真面目グルマの秘密兵器" [Suzuki Swift XS-DJE (FF/CVT) - Serious Gurma's Secret Weapon]. www.webcg.net (in Japanese). 2013-09-23. Retrieved 2020-12-06.
  3. ^ Kumar, Sukrit. "What Makes The 2020 Maruti Suzuki Dzire's K12C Dualjet Engine So Efficient?". www.zigwheels.com.
  4. ^ "Meet the Suzuki BOOSTERJET engine (video)". SuzukiCarsUK.
  5. ^ "BOOSTERJET Technology". www.suzuki.co.nz.
  6. ^ "SHVS mild hybrid + DUALJET (Video)". Suzuki Global (YouTube).
  7. ^ "SMART HYBRID TECHNOLOGY". www.marutisuzuki.com.