GM 54-Degree V6 Engine - L81 3.0

L81 3.0

The L81 was used longitudinally in Cadillac Catera and transversely in the Saturn L-Series, Saturn Vue, Saab 9-5 and Saab 9000. Bore and stroke were 86 mm (3.38 in) × 85 mm (3.35 in), for 2962 cc (180.75 cu in) displacement. with 10.8:1 compression, the engine produced between 182 hp (136 kW) and 208 hp (155 kW) with 190 lb·ft (258 N·m) to 199 lb·ft (270 N·m).

Saab's turbocharged version (referred to by Saab as 'B308') for the Saab 9-5 produced 200 hp (149 kW) at 5000 rpm and 229 lb·ft (310 N·m) at 2500-4000 rpm. The engine was unique in that an asymmetrical turbocharging method was employed with the turbocharger using the exhaust gases from one bank of cylinders and produced a charge pressure of 3.6PSI (.25 Bar) using a Garrett GT15 turbo. Saab equipped the engine with a special version of Saab Direct Ignition and utilized the Trionic T7 engine management system.

This engine was used in:

• 1997–2001 Cadillac Catera
• 1996–2000 Opel Sintra Vauxhall Sintra
• 1995–2000 Opel Omega Vauxhall Omega
• 1995–1997 Saab 9000
• 1997–2003 Saab 9-5 (turbocharged)
• 2000–2005 Saturn L-Series
• 2002–2003 Saturn Vue