Source - General Motors Corp
Chevrolet and GM Performance Division took the sizzling Cobalt SS Supercharged coupe and turned it into an Unlimited Class Time Attack machine, which already bested the legendary Nissan Skyline's times by seven seconds in Street Tuner Challenge's Time Attack on July 21.

The Time Attack Cobalt SS Supercharged coupe's Stage 2+ Ecotec engine was developed by GM Performance Division and GM Powertrain. It features an Eaton M-62 Gen 5 Hybrid supercharger and delivers 264 horsepower at 7000 rpm and 230 lb.-ft. of torque at 4000 rpm. When nitrous boost is added, performance jumps to 344 horsepower at 6800 rpm and 350 lb.-ft. of torque at 3600 rpm.


The Cobalt SS Supercharged Coupe Time Attack Unlimited will race Nov. 8 at Buttonwillow Raceway Park in central California, the same track where it bested an 801-horsepower AWD, twin-turbo Nissan Skyline and a nitrous charged Volkswagen Jetta.


Led by GM Performance Division and Chevrolet, with help from Lotus Engineering among others, a new contender burst onto the scene this summer in the increasingly popular Time Attack competitions – the Chevrolet Cobalt SS Supercharged. Driven by John Heinricy in the Unlimited Class, the FWD Cobalt SS Supercharged beat the fastest times of the legendary AWD Nissan Skyline by seven seconds in Street Tuner Challenge's Time Attack event on July 21.


Now with some further modifications and added nitrous boost, the Cobalt SS Supercharged looks to make an even bigger splash on Tuesday, Nov. 8 in a return to California's Buttonwillow Raceway Park for the PRIMEDIA Time Attack, where it will seek to record the fastest time in the Unlimited Class as well as overall.


Working in partnership with GM Performance Division and other specialists, Lotus Engineering provided calibration and engineering expertise to help maximize the performance potential of the base supercharged 2.0L ECOTEC engine in the Cobalt SS. In race-ready trim, the nitrous oxide boosted engine delivers an impressive 344 horsepower and 350 lb.-ft. of torque.


Tim Holland, director of Powertrain Engineering at Lotus' USA office in Michigan, commented: 'Handling the calibration aspect of the supercharged 2.0-liter ECOTEC engine was a very rewarding job. Lotus Engineering had already been involved in the development of the standard production engine; therefore being given the chance to make it even more powerful was fantastic. By adding nitrous oxide the engine can now deliver a conservative 344 horsepower in short bursts. I can't wait to see the race for myself on November 8.'


Time Attack racing has been popular in Japan for some time, and finally made its way to America in 2003. Taking cues from the Japanese competitions, Time Attack races feature street-based cars on ordinary street tires trying to complete the fastest flying lap time possible on a given track.

2006 Chevrolet Cobalt SS Time Attack Unlimited
Year 2006
Make Chevrolet
Model Cobalt SS Time Attack Unlimited
Engine Location Front
Drive Type Front Wheel
Weight 2350 lbs | 1066 kg
MPG City 25
MPG Highway 34

Engine [Optional Engines]
Engine Configuration I
Cylinders 4
Engine Stage II. Ecotec.
Aspiration/Induction Supercharged
Nitrous-Assited
Displacement 2.00 L | 122 cu in. | 1999.6 cc.
Valves 16 valves.
4 valves per cylinder.
Valvetrain DOHC
Horsepower 344.00 HP (253.2 KW) @ 6800.00 RPM
Torque 350.00 Ft-Lbs (474.6 NM) @ 3600.00 RPM
HP to Weight Ratio 6.8 LB / HP (Vehicles with similar ratio)
HP / Liter 172.0 BHP / Liter
Redline 6500
Fuel Type Gasoline - Petrol
Block Aluminum
Head Aluminum
Vehicles with similar horsepower and weight

Standard Transmission
Gears 5
Transmission Manual

Dimensions
Cargo Volume 13.90 cu. ft.
Passenger Volume 83.001 cu. ft.
Interior Volume 97.001 cu. ft.
Fuel Capacity 13.2 Gal
Seating Capacity 5
Doors 4
Exterior
Length 180.501 in | 4584.7 mm.
Width 67.901 in | 1724.7 mm.
Height 57.101 in | 1450.4 mm.
Wheelbase 103.301 in | 2623.8 mm.
Front Track 58.701 in | 1491 mm.
Rear Track 58.101 in | 1475.8 mm.
Ground Clearance 5.361 in | 136.2 mm.
Interior
Front Headroom 38.501 in | 977.9 mm.
Rear Headroom 37.70
Front Legroom 41.80
Rear Legroom 33.70
Front Hip Room 49.5
Rear Hip Room 49.6

Suspension
Suspension Front : Independent strut-type suspension with stabilizer bar
Rear : Semi-independent torsion beam with stabilizer bar


Steering
Rack and Pinion with Speed Sensitive Power Assist
Steering Overall Ratio 16.63:1
Turns lock to lock 3.60
Turning Circle 37.401 ft

Tires / Wheels
Tires 225/40ZR18 Goodyear Eagle F1 tires
Wheels Front : Asanti AF123B aluminum wheels
Rear : Asanti AF123B aluminum wheels

 

The exact article you posted that refers to the Toyo Tires Time Trial (or whatever) was on last night on SPEED.

Quite interesting. They didn't do a whole lot on it, but they gave it about a 7 minute segment, all about the Balt they brought.

 

good stuff I hope they smash the previous track best

 

This is on my birthday and its only a 3 hour drive from where im at. And if I speed maybe a 2:30 hour drive . I think this is a race ill have to go to.

 

take a video camera man so if you go we can all view the goods when a video is posted.

 

Bump for the afternoon peeps

 

Four days after my birthday... Nice present!

 

 

Notice under the specs, it says gm stage II ecotec but the redline is still at 6500??

 

poor car never got reflashed, lol.

 

the redline is 6500 that doesn't mean the rev LIMITER is at 6500

 

it's likely done that way as a custom tune

 

It says in the article that the car's peak horsepower without nitrous is at 7000 rpm, so it must be capable of higher rpms then 6500.

 

Yeah, I was wondering about the 6500 RPM redline. It is probably a missprint since they did say it goes to 7,000 RPM under nitrous.

Then again, your redline is 6,500 RPM with stage II. You are just able to exceed it until you hit the rev limiter!

Thanks for posting that. It will be interesting to see how the car does!