GM Family 1 engine

From Wikipedia, the free encyclopedia

The Family 1 is a straight-4 piston engine that was developed by GM-Opel Powertrain, a subsidiary of Adam Opel A.G. to replace low-displacement versions of GM Family II engine for use on subcompact cars from Opel/Vauxhall.

Contents

[edit] Ecotec

First generation, features DOHC valvetrain driven by toothed belt and a cast-iron cylinder block with aluminum cylinder head.

  • 1.4 L (1389 cc) (phased out): 10.5:1 compression, 90 hp (66 kW) and 92 ft·lbf (125 N m) of torque.
  • 1.6 L (1598 cc): 79 mm (3.11  in) bore, 81.5 mm (3.21 in) stroke, 10.5:1 compression, 100 hp (74 kW) and 111 ft·lbf (150 N m) of torque. .
  • 1.8 L (1796 cc): 80.5 mm (3.17  in) bore, 88.2 mm (3.47 in) stroke, 10.5:1 compression, 115 hp (85 kW), 122 hp (90 kW) or 125 hp (92 kW) and 123 ft·lbf (167 N m) of torque. Later versions features variable intake technology.

Family 1 Ecotec engines are used in:

[edit] TwinPort

Updated version introduced in 2002, with lighter cast-iron cylinder block and camshaft driven by toothed belt. Features EGR valve and TwinPort variable intake geometry - twin intake ports with a choke closing one of the ports at low RPM, providing strong air swirl pattern for higher torque levels and better fuel economy. The drive belt for the camshafts is wider and stronger than before, and water pump is not driven by it anymore which improves reliability. Turbocharged versions exist.

  • 1.6 L (1598 cc): TwinPort, 79 mm (3.11  in) bore, 81.5 mm (3.21 in) stroke, 10.5:1 compression, 105 hp (77 kW) and 111 ft·lbf (150 N m) of torque.

Ecotec TwinPort Family 1 engine is used in:

[edit] DCVCP

A new variant of 1.8L Family 1 engine, featuring Euro IV compliancy, DCVCP (Double Continuous Variable Cam Phasing technology, a variant of VVT) and integrated catalytic converter, will enter production Spring 2005. It is based on the lighter cast-iron block, although there's no TwinPort in this version.

  • 1.8 L (1796 cc): DCVCP, 80.5 mm (3.17  in) bore, 88.2 mm (3.47 in) stroke, 10.5:1 compression, 140 hp (103 kW) and 129 ft·lbf (175 Nm) of torque.

Ecotec DCVCP engines are used in:

[edit] D-TEC

D-TEC was an older variant of Family 1 SOHC engine licensed by Daewoo Motors for their range of Opel-derived cars such as Daewoo Espero and Daewoo Nexia. These engines are built exclusively at Bupyeong engine plant. They feature valvetrain driven by toothed belt, in a DOHC configuration for most versions, and aluminum cylinder head.

[edit] E-TEC II

Updated version of D-TEC. Most models feature Euro III-compliancy, and 1.4 L and 1.6 L (1598cc) DOHC versions employ variable intake geometry.

Higher-displacement versions of D-TEC and E-TEC II are indeed Family II engines built by Holden.

[edit] GM do Brasil

GM do Brasil specializes on SOHC, petrol-powered and FlexPower (powered with ethanol and/or petrol, mixed in any percentage) engines.

GM Brasil also made 16-valve versions of the 1.0, 1.6 and 1.8-liter engines.

The 1.0 L 16v was available in the Corsa line-up from 1999 to 2001. The 1.6 L 16v was available in the Corsa GSi hatchback and the Chevrolet Corsa sedán and station wagon GLS trim. Finally, the 1.8 16v with 122cv was available in the Chevrolet Meriva and Fiat Stilo.

[edit] See also