GM Stage Two Performance For The Supercharged LSJ Ecotec - Power Up

Unbolt the four 6mm bolts holding the blower onto the intake manifold and remove blower. Cover the inlet on the intake to prevent debris from falling into the engine and causing damage.

Rest the pulley on the 'press plate' with the blower hanging below and use a spacer to push the shaft out of the stock pulley.

Install the Stage Two blower pulley hub by carefully pulling it onto the blower shaft with an 8x1.25mm pitch threaded rod pulley installer.

Install the smaller Stage Two blower pulley on the Stage Two hub and torque the four provided fasteners with the provided tool to 18 lb-ft in a radial pattern.

Reinstall the now-Stage Two upgraded blower on the engine intake manifold. Make sure the blower aligning pins are seated in the intake manifold and that the intake-to-blower gasket is in place. Thread the new blower belt over the pulley. Torque the 6mm bolts to 18 lb-ft. Install throttle body and gasket, torquing the four bolts to 89 lb-in. Install other components removed in previous steps.

Remove the injector electrical connectors on each of the injectors by depressing the connector lock tab and pulling up. Remove the injectors from the fuel rail by pulling the 'C' shaped metal lock tabs off the side of the fuel injectors with a flat screwdriver-saving them for reuse. Note the 'clocking' of the fuel injector, the new injectors need to be installed in the same position. Lube up each of the O-rings on the fuel injectors with Vaseline. Preinstall the fuel injector rail hold-down clips on all four injectors.

Now that you know how to safely remove the injectors you can install the Stage Two injectors/rail onto the engine after checking to make sure the green washer and blue O-ring are seated in the fuel rail fitting. Make sure the injector wiring is not crushed between the mounting points before torquing down the two hold-down bolts. Install all previously removed wiring, lines and fasteners.

Install the battery cable and turn the ignition key to the 'on' position to check for fuel system leaks. If there are no leaks, crank the engine until it starts and let it run for a few minutes. Check the fuel rail again for leaks once everything has come up to operating temperature. With no leaks, shut the engine off and install the engine cover.

Once the parts are installed, immediately and carefully drive the vehicle to a GM dealership to receive the performance calibration... Finally, slap on the supplied EO sticker over the existing engine sticker to signify the 50-state legality of this system (and to keep the po-po at bay). Make sure you give her premium fuel to allow you to break people off by the largest of margins-on a sanctioned track of course.