Daewoo S-TEC engine

Daewoo S-TEC engine
Overview
ManufacturerDaewoo Motors (1991-2002)
General Motors (2002-present)
Also called
  • M-TEC
  • P-TEC
  • SMARTECH II
Production1991-present
Layout
ConfigurationInline-3, Inline-4
Displacement
  • 0.8 L (796 cc)
  • 1.0 L (995 cc)
  • 1.2 L (1,150 cc)
  • 1.2 L (1,199 cc)
  • 1.2 L (1,206 cc)
  • 1.2 L (1,249 cc)
  • 1.4 L (1,399 cc)
  • 1.5 L (1,451 cc)
  • 1.5 L (1,485 cc)
Cylinder bore
  • 68.5 mm (2.70 in)
  • 69.7 mm (2.74 in)
  • 70.5 mm (2.78 in)
  • 74.71 mm (2.94 in)
Piston stroke
  • 67.5 mm (2.66 in)
  • 72 mm (2.83 in)
  • 78 mm (3.07 in)
  • 79 mm (3.11 in)
  • 80 mm (3.15 in)
  • 84.7 mm (3.33 in)
Cylinder block materialCast iron
Cylinder head materialAluminum
Valvetrain
Compression ratio9.3:1, 9.5:1, 9.8:1, 10.2:1, 10.5:1
Combustion
TurbochargerMitsubishi Heavy Industries one-stage single-scroll (Daewoo S-TEC III LL5 versions)
Fuel systemFuel injection
Fuel type
Oil systemWet sump
Cooling systemWater-cooled
Output
Power output36–110 kW (49–150 PS; 48–148 hp)
Torque output71.5–230 N⋅m (52.7–169.6 lb⋅ft)
Emissions
Emissions control systemsEGR
Chronology
SuccessorSmall Gasoline Engine

S-TEC or M-TEC is a low-displacement engine range co-developed by Suzuki and Daewoo Motors for use in micro and subcompact cars. The original version was a license-built version of the Suzuki F8B engine; later generations were derived from the original design in South Korea.

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