Less fuel is required to produce the equivalent horsepower, especially at normal cruising speeds, of a conventional port-injection combustion system. With direct injection, fuel is delivered directly to the combustion chamber to create a more complete burn of the air/fuel mixture. Gasoline direct-injection technology helps the engine produce more power while maintaining lower fuel consumption. It produces 2.1 horsepower per cubic inch of displacement (130 hp / 97 kW per liter) and is the most powerful engine in the Ecotec family. The Cobalt SS’s Ecotec 2.0L turbo engine is the same that powers the recently introduced HHR SS. “With the Cobalt SS, fun is balanced with a serious degree of capability, on both the street and racetrack.”įeatures such as “no-lift shift” and other driver-selectable performance modes help the Cobalt SS achieve 0-60 mph in approximately 5.7 seconds and cover the quarter-mile in approximately 14.2 seconds, with minimal torque steer. “Chevrolets are about fun and the SS models are the most fun of all,” said John Heinricy, GM Performance Division executive. of torque (353 Nm) with the standard five-speed manual transmission. The Cobalt SS is powered by a turbocharged and intercooled 2.0L Ecotec DI engine that delivers 260 horsepower (194 kW) and 260 lb.-ft. The engineers from GM told me that they designed the new turbo Cobalt “one step away from going for the kill.”įor street driving leave the stability control in normal mode and enjoy the comfortable race inspired seats which works great for daily driving and for the weekend warriors track events. There was a hint of under steer then the stability control would kick in and drag the rear brake and the rear end would begin to rotate around and give the driver a neutral feel. Most front wheel drive cars would have a tendency to under steer when pushed past the limit of adhesion. The car was very nimble and with a good power range and minimal turbo lag on the track. The stability control in the sport mode was fabulous. I would opt for the limited slip differential. You get a turbo charged front wheel drive car with launch control, stability control and no lift shift. It is the best bang for the buck in the low 20K range. To get this discount, you're more than likely buying a higher mileage car, and a used Mercedes can be the most expensive cheap car you can buy.GM’s new turbo charged Cobalt is a blast to drive. The E55 slips quietly through what seems an unusually thin atmosphere. There's no wind noise, no lightness in the steering wheel, no unnerving shiver through the body. Never have we experienced speed so divorced from the sensation thereof. They also note that all of that speed and power comes with an almost unsettling amount of manners and stability, noting, "You're aware of the speed because your brain tells you objects couldn't possibly be thrown into your field of vision so quickly. All that with four doors and a proper trunk. 3 ticks behind a Ferrari 575 with over 500 hp. Related: Supercharged Ariel Nomad Tactical Pops Up At AuctionĪnother contender in the fast luxury sedan shootout of the early 2000s, the E55 AMG had the requisite mind-numbing numbers of 469 hp and a 0-60 time of 4.5 seconds. That mechanical whine of a supercharger, as well as the immediate push into the back of the seat, has a fantastic allure. This makes what's known as turbo lag.Ī supercharger, on the other hand, has its turbine spun up by the crankshaft of the motor, meaning as soon as the motor is spinning, the supercharger starts jamming air in the cylinders, creating an instant-on power boost, making them popular with dragsters and cars that need that boost off the line. However, this creates a bit of a lag as the turbo can't come on power until it spools up from the exhaust. This creates a feedback loop of power the more you put out, the more you can shove in. Turbos operate with two turbines, one in the exhaust that is spun by spent fuel and air on the way out that in turns spins the second turbine that force-feeds the cylinder air. The most common is the trusty turbocharger. There are two accepted and standard methods to shovel air, or forced induction, into the motor. We've updated this list to include some new awesome cars with superchargers that weren't as affordable a couple of years ago, but as used cars go, you can afford them now! Despite being a cheaper way to gain some horsepower, many of these supercharged vehicles don't come cheap brand new. Updated February 2022: Superchargers are a great way to unlock the power hidden under the hood.
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