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Description
Take your Cobalt SS to the next level with our Stage 3 Off-Road kit!
The Stage 3 kit consists of the following:
• Smaller, 76mm supercharger pulley
• 2-pass intercooler end plate
• Unique PCM which includes a calibration for the smaller pulley, an adjustable rev limiter, a 100 octane mode, and a nitrous algorithm.
Our Stage 3 kit will take your supercharged Ecotec to a whole new level of performance. Stage 3 takes horsepower output to 248 on 93 octane fuel and to 260 horsepower on 100 octane fuel.
In addition to the power increase, you'll also get an adjustable rev limiter and calibration for a 50 shot of nitrous (nitrous kit not included).
For best power, we recommend also installing a high-flow exhaust.
The PCM is equipped with a user adjustable rev limit from 6750 to 8000 rpm. The rev limit is adjusted by pressing on the throttle pedal with the ignition on and engine off. At about 50% throttle the tachometer will show the current rev limit. Pressing the throttle further will adjust the rev limit in 250 rpm increments. This PCM is also equipped with a control scheme for the equivalent of a 50-horse shot of Nitrous. The PCM will automatically provide the proper spark and fuel for A Nitrous up to 500 rpm below the current selected rev limit when the trigger is activated.
More Details
The features provided in this kit are increase the potential horsepower up to 260 hp and provides a greater level of adjustability for off-road use. The custom PCM included in the kit allows the user to set rev limits up to 8000 rpm (further engine modifications required for 7000+ rpm use), change calibration to maximize potential of 100 octane fuel, and also offers the ability to add a 50 shot nitrous kit.
The 76 mm pulley increases the boost and therefore increases horsepower and torque to 250 hp on 93 octane and 260 hp on 100 octane. The modified intercooler improves cooling of the intake charge during extended running at higher boost conditions, thereby allowing the engine to maintain the increased horsepower for longer periods of time.
A low restriction, high flow exhaust system is also suggested to maximize your vehicles performance. GMPP offers an extrude honed exhaust manifold P/N 19131972 that would be a good start to a low restriction exhaust system.
