2008 Cobalt SS TURBOCHARGED!!!!

[Brian Hamilton]

I know this prolly should be in the drivetrain section, but what an awesome engine idea for the SL-R!!!

Check it out...

msrp starts at $22,995

FWD nurburgring record, and 13.9 quarter mile.


Engines

Ecotec 2.0L DI Turbo VVT
Application: std on SS
Type: 2.0L DOHC I-4
Displacement (cu in / cc): 122 / 1998
Bore & stroke (in / mm): 3.39 x 3.39 / 86 x 86
Block material: cast aluminum
Cylinder head material: cast aluminum
Valvetrain: DOHC, 4 valves per cylinder; dual continuous variable valve timing
Ignition system: individual coil-on-plug
Fuel delivery: direct-injection with a variable high-pressure rail and electronic throttle control
Compression ratio: 9.2:1
Horsepower (hp / kW @ rpm): 260 / 194 @ 5300*
Torque (lb-ft / Nm @ rpm): 260 / 353 @ 2000*
Recommended fuel: premium recommended but not required
Maximum engine speed (rpm): 6300 rpm
Emissions controls: close-coupled catalytic converters, Quick-Sync 58x ignition system; returnless fuel rail; wide-range O 2 sensor
Estimated fuel economy: TBD

Transmission

GM Powertrain Sweden F35 5-speed manual
Gear ratios: 1):
First: 3.38
Second: 1.76
Third: 1.18
Fourth: 0.89
Fifth: 0.70
Reverse: 3.17
Final drive ratio: 3.82:1

Chassis/Suspension

Front: MacPherson independent strut-type with direct acting, 24mm solid stabilizer bar
Rear: semi-independent torsion beam with montoube gas shocks; 24mm solid stabilizer bar
Steering type: electric, power-assisted variable-speed rack-and-pinion
Steering ratio: 14.8:1 (variable)
Steering wheel turns, lock-to-lock: TBD
Turning circle, curb-to-curb (ft / m): 39.4 / 12

Brakes

Type: power 4-wheel disc with standard anti-lock; 38mm Brembo four-piston fixed calipers in front and 40mm single-piston rear calipers
Rotor diameter x thickness (in / mm): front: 12.4 x 1.02 / 315 x 26 (vented)
Disc diameter x width (in / mm): rear: 11.5 x 0.79 / 292 x 20 (vented)

Wheels/Tires

Wheel size and type: 18 x 7.5-inch split-spoke polished forged aluminum
Tires: P225/40ZR18 high-performance

Dimensions

Exterior

Wheelbase (in / mm): 103.5 / 2628
Overall length (in / mm): 180.5 / 4585
Overall width (in / mm): 67.9 / 1725
Overall height (in / mm): 55.7 / 1415.4
Track (in / mm): front: 58.6 / 1490 rear: 58.1 / 1476
Minimum ground clearance (in / mm): TBD
Curb weight (lb / kg): 2975 / 1349
Weight distribution (% front / rear): 60 / 40


Imagine that with a turbo upgrade in the back of the SL-R... Awesome!!

 

[Bill Tracy]

Let's see what an actual, operable SL-R does first before getting too excited about the engine possibilities. I know the car looks fantastic (that's one of the reasons I ordered one a few months ago), but nobody has ever driven one that I am aware of.
I can tell you from the pictures that a Honda K20Z3 is a pretty tight fit in the chassis, so a physical sample of a complete engine and trans that you are considering would be best test fitted prior to purchasing an engine swap. The performance numbers do look good though!
BT

 

[Fran Hall RCR]

My proto has a Cobalt engine installed and was the original engine of choice until GM dropped it as a crate engine.
We have driven the SL-R in full electric trim...it will be seen on the Discovery Channel, CBS and was used as the camera car at the Hagerstown, MD, electric race meet by the Travel channel too...It is a riot.

 

[Bill Tracy]

Can't wait to see the video Fran! Also, glad to hear that my car is on a truck on its way to Florida (as of last Friday). I'm a little nervous as to my mechanical skills required to finish the car, but I'm looking forward to the project. Thanks for the update!
BT