Horsepower: 205 hp (153 kw) @ 5600 rpm
Torque: 200 lb-ft (272 Nm) @ 4400 rpm
Fuel shut off: 6500 rpm
Emissions controls: three-way catalyst
Applications: Chevrolet Cobalt SS
Saturn ION Red Line
Block: cast aluminum with cast iron cylinder liners
Cylinder head: cast aluminum
Intake manifold: aluminum
Exhaust manifold: cast iron
Crankshaft: forged steel with induction hardened fillet
Camshaft: cast iron
Connecting rods: forged steel
Additional features: high pressure ( 56 psi ) fuel pump
extended life platinum spark plugs
extended life coolant
electronic throttle control
Individual coil on plug high energy ignition
Now, at 205HP from the factory, if you go to the
http://www.cobaltss.net/forums/index.php? or the
http://www.redlineforums.com/index.php you will find that most 2.0SC cars are dyno'ing 200 at the TIRES ! Yes, GM underrates on purpose sometimes to keep a car in an insurance bracket. Maybe its a honest mistake of bad dyno info that day too...
Now, what else makes this exciting? The factory is going to release UPGRADE kits to make this engine 250HP at the tires, and still keep the warranty. GM is going to allow a LSD upgrade and still maintain warranty on the transmission. GM has obliviously did its homework and found excellent results from the 5 speed manual transmission the Ion and Cobalt have.
The Stage 1 kit includes higher flow injectors and a new PCM calibration. The injectors give the engine enough fuel to rev higher, and the new engine calibration allows it all to happen by raising the rev limiter to 6700rpm. The new calibration also allows full boost instead of limiting it to a 205hp maximum with the stock PCM. Stage 1 would be a modest improvement over the stock configuration, but perhaps that’s because the best is yet to come.
Stage 2 adds the same injectors and calibration as Stage 1, but also includes a smaller 79mm supercharger pulley which increases boost by 2psi. According to Jim Minneker, Engineering Group Manager at GM HPVO, the Stage 1 calibration is configured to account for the smaller pulley if it is added, so there’s no need for different calibrations for each stage.
Factory release Stage 1 and Stage 2 upgrades that are currently undergoing CARB certification and will hopefully be released around SEMA time in November.
