Upgraded Ecotec Engines
If you own a 2003 to 2005 model year Chevrolet Cavalier or Pontiac Sunfire and the 2.2-litre Ecotec inline-four simply isn't quick enough, the Performance Parts division of General Motors can help.
GM Performance Parts is now selling a supercharger kit that attaches to the 2.2-litre inline-four that powers both of those models, or a supercharged 2-litre Ecotec inline-four that replaces the larger but less powerful engine altogether.
Sport performance freaks who go for the kit with the 11-pound boost from the Eaton M62 helical roots-type supercharger on the existing engine will get 175 hp, which is a 25 percent increase. Pull out all the stops and the existing engine and put in the 2-litre crate engine and you can get 205 hp at 5,600 rpm and 200 lb.-ft. of torque at 4,400 rpm.
The more modest supercharger kit includes the supercharger assembly, intake manifold, all required gaskets, accessory drive brackets, a tensioner, belt and new high-flow injectors. It will also include a throttle body adapter new inlet air duct, new cruise control cable and all of the fasteners required to assemble it to the engine.
The kit is planned to be emissions certified and include a calibration to be downloaded by the dealer after installation.
The GM Performance Parts 2.2L supercharger kit will be offered as either a hard parts kit with no calibration or harness, or a platform-based street kit that will have both a calibration and harness.
Both will be factory engineered and extensively tested to ''rigorous'' GM standards for performance and durability. Because the unit isn't offered as a factory option, you'll have to get yours through your local dealership.The same Eaton M62 supercharger plays a key role in the dual-overhead camshaft 2-litre crate engine, but it brings 12 pounds in this application. With that boost and an air-to-water intercooler, GM says this unit delivers ''enhanced power and reduces a supercharged engine's propensity to 'knock' at high boost levels.''
Tuners can purchase the GM Performance Parts Ecotec supercharged 2-litre crate engine from any GM dealership using part number 12499466.
