wellcom to Auto/Motor Cars Space!

显示标签为“Chevrolet Camaro”的博文。显示所有博文
显示标签为“Chevrolet Camaro”的博文。显示所有博文

2010 Chevrolet Camaro SS Road Test

The arrival of the Chevy Camaro finally completes Detroit’s pony-car trifecta. Does the Reborn Ponycar Live Up to Its Name?

Since the last pill-shaped F-body Camaro rolled off the line in 2002, the long-fought, often contentious pony-car game has been one of solitaire, played solely by the Ford Mustang.

The Mustang went all retro in 2005, and the ensuing craze prompted Dodge and Chevy to rouse their own dormant nameplates (and fans) to take on the foe-less leader. Dodge was first in 2008 with its resurrected Challenger, and now—just as Ford is launching its significantly updated 2010 Mustang—Chevrolet has finally commenced production of its reborn Camaro, completing the new-age pony-car trifecta.

While we will save the official comparison test for later, we can aver that the neo Camaro offers the freshest and most modern package of the three. Built as it is on GM’s superb Zeta full-size platform, it sports a fully independent suspension, along with evocative, contemporary styling that thankfully misses being totally retro.

We entered into this first test of the long-awaited 2010 Camaro with high expectations. Indeed, with a 304-hp, 3.6-liter V-6, the base Camaro is nearly as powerful as the Mustang GT, and so we were champing at the bit to see what the Camaro could do in SS form, with a 6.2-liter V-8 stuffed under its hood.

How Quick Is It?

With the six-speed automatic, the Camaro SS can hit 60 mph in a scant 4.6 seconds, with the quarter-mile arriving in 13.1 at 109 mph. At 4.8 seconds, the Camaro with the six-speed manual takes 0.2 second longer to hit 60, but overtakes the automatic by the quarter-mile mark, clocking 13 seconds flat at 111 mph. (The L99 V-8 hooked to the automatic is rated for 400 hp and 410 lb-ft of torque, while the LS3/manual combo is good for 426 hp and 420 lb-ft.)

For comparison, both the 315-hp 2010 Ford Mustang GT and the 376-hp, 5.7-liter Hemi-powered Dodge Challenger R/T do the trick in 5.1 seconds. The better-matched but pricier Challenger SRT8—with a 425-horse, 6.1-liter Hemi—hits 60 in 4.8 seconds. So until Ford gets the Mustang GT into the gym and stuffs more power under its hood, Chevy has earned bragging rights in the segment where burliness arguably counts the most.

On a drive that took us along the scenic roads east of San Diego, California, we also found the Camaro’s roadholding to be quite stellar—it grips with 0.92 g on a skidpad—thanks in part to the independent multilink suspension out back and the stickiness of the fat, Z-rated 245/45 front and 275/40 rear tires mounted on 20-inch wheels. The variable-ratio steering rack delivers great on-center feel, similar to that which we’ve praised on the Camaro’s platform-mate, the Pontiac G8.












Quiet + Calm Ride = Surprising Comfort

The Camaro SS packs a few surprises, however. The engine is remarkably—and to some, disappointingly—quiet, at least from inside the cabin (based on the shell-shocked looks on the faces of people we blew by, it appears that it’s plenty loud on the outside).

For high-speed cruising, this is a good thing, as there is no shred of that exhausting boominess that can add misery to long-haul muscle-car motoring. But at the same time, we found ourselves wanting a bit more of an audible reminder that we were driving something with 426 freakin’ horses under the hood. Even at full tilt, the engine didn’t seem to have the trumpet-like blat of the Challenger R/T’s 5.7-liter, let alone the NASCAR-worthy howl of the 6.1-liter in the SRT8.

Another surprise is the eerily serene ride, which makes the quietness seem even quieter. Particularly at freeway speeds, the Camaro’s Zeta roots pay dividends, striking a brilliant balance between lively, grippy roadholding and wonderfully compliant damping. Meanwhile, the SS offers decent feedback through the steering wheel. A guy could cruise all day in this thing and never feel beat up.


















Drives Big

At higher speeds, however, is where one misses things like outward vision. The very low roof, high waistline, and wall-like rear pillars make the car drive big (not good for twisty two-laners), although the Challenger drives bigger yet.

Lane-changing is a point-and-squirt affair rather than anything involving an over-the-shoulder check. The exterior mirrors help, with the bonus that they give you a close-up view of the Camaro’s sexy hips. The interior mirror is utterly useless; all one sees when glancing rearward is an ocean of black roof and C-pillars the width of a Sequoia (the tree or the Toyota).

Also disappointing are the hard plastics that we had hoped were banished from GM interiors, but they’ve clearly found their way inside the Camaro.

Furthermore, the inset dashboard trim piece that was to be rendered—at least optionally—in a cool illuminated band of light-tube trickery has now become a cloth insert. And finally, as great as the high-mounted squircle-shaped gauges and cool center stack look, the script is tiny and the buttons can be ergonomically challenging in operation.
But the Camaro is beguiling.

It has a strong design, a strong heritage, and delivers seriously strong acceleration. It will do well with its established fan base, and should even earn a few more admirers in its new life.

And not insignificantly, the EPA just gave it excellent fuel-economy ratings. Could it be better? Absolutely, but at least its deficiencies involve its interior detailing more than its dynamics. Besides, in these tumultuous, unpredictable times, we should celebrate the mere fact that pony cars like this are here at all.

Welcome to the herd, little pony.

2010 Chevrolet Camaro to Hit Dealships

DETROIT – When it comes to performance, the 2010 Camaro delivers in unexpected ways. An advanced 3.6L direct-injected V-6 with variable valve timing is standard on LS and LT models. It offers power and efficiency, with 304 horsepower (227 kW) and EPA-rated 29 mpg in highway driving.

The performance-oriented Camaro SS offers a pair of 6.2L V-8s, including one with Active Fuel Management that helps improve fuel economy by shutting down four cylinders during certain light-load driving conditions. That model delivers 25 mpg in EPA-rated highway fuel economy.

Indeed, the surprising fuel economy of the new Camaro enhances the driving experience. LS and LT models are EPA-rated at 18 mpg in the city and 29 on the highway with an automatic transmission; and 17 city and 29 highway with the manual transmission. Camaro SS with an automatic is rated at 16 city and 25 highway; and 16 city/24 highway with the manual transmission. Notably, none of Camaro's models is subject to federal gas guzzler taxes.

For comparison, the more expensive 2009 Dodge Challenger SRT8 offers comparable horsepower to the Camaro SS with the manual transmission – 425 (317 kW) vs. 426 (318 kW) – and is EPA-rated at 14 city and 22 highway.

When automatic-equipped models are compared, the Camaro wins again, with the Challenger SRT8 rated at 13 city and 19 highway.

All of Camaro's engines channel their power to a responsive chassis that features independent front and rear suspensions, large, four-wheel-disc brake systems with standard ABS and GM's StabiliTrak electronic stability control system.

3.6L direct injection V-6

Camaro's 3.6L direct injection (DI) V-6 delivers more power through increased efficiency, while maintaining fuel economy and lowering emissions – including a 25-percent drop in cold-start hydrocarbon emissions. Direct injection optimizes fuel delivery to the combustion chamber by introducing fuel closer to the combustion chamber.

The fuel injectors are located beneath the intake ports and fuel is injected directly into the cylinder. The result is better efficiency in the combustion process leading to increased fuel efficiency at part and full throttle.



The 3.6L DI engine produces 304 horsepower (227 kW) at 5,900 rpm and 273 lb.-ft. of torque (370 Nm) at 5,200 rpm. Its 60-degree cylinder block and cylinder heads are cast aluminum to help reduce mass.

A forged steel crankshaft provides optimal strength in the bottom end. The cylinder heads include four valves per cylinder, with a dual overhead camshaft design incorporating infinitely variable cam phasing.

A full dual exhaust system, with dual catalytic converters, helps reduce back pressure for optimum power. It also helps the engine reach operating temperature quicker to help burn off cold-start emissions. And despite a compression ratio of 11.3:1, the 3.6L DI engine is designed to run on regular gas.



Camaro SS's 6.2L powertrains

Two 6.2L V-8 engines are offered in the Camaro SS, including the new L99 on automatic-equipped vehicles and the LS3 on manual-equipped models. Both engines are derived from the LS3 that debuted on the 2008 Corvette.

The 90-degree V-8 includes an aluminum block (with cast iron cylinder liners) and aluminum cylinder heads. The bottom end of the engine includes a new structural cast aluminum oil pan, with an oil capacity of 8.9 quarts (8.5 liters), while the two-valve cylinder head design is based on race-proven airflow dynamics. The intake valves measure 2.16 inches (55 mm) and exhaust valves are 1.60 inches (40.5 mm) in diameter.

The 6.2L engines also use a roller lifter-style camshaft with 5-percent greater intake-side valve lift than the Corvette's LS3. It manages airflow that is channeled through an acoustically tuned intake manifold with a composite design that reduces runner-to-runner variation. The throttle bore diameter is 90 mm.

Horsepower for the L99 is 400 (298 kW) at 5,900 rpm and torque is 410 lb.-ft. (556 Nm) at 4,300 rpm. The LS3 develops 426 horsepower (318 kW) at 5,900 rpm and 420 lb.-ft. (569 Nm) at 4,600 rpm (all numbers are SAE certified). Output on the L99 is lower than the LS3 because of a slighter lower compression ratio (10.4:1 vs. 10.7:1) and design features of the Active Fuel Management System. The L99 is paired exclusively with an automatic transmission.

As with the 3.6L models, the SS models employ a full dual exhaust system, with two catalytic converters to reduce back pressure.

Transmissions

All Camaro models can be equipped with either a six-speed manual or six-speed automatic transmission. The availability of a six-speed automatic transmission is a first for Camaro.

Standard with the 3.6L engine is the Aisin AY6 six-speed manual. It features lower shift effort and shorter throws for easier shifting and "fun-to-drive" characteristics. A hydraulic clutch and self-adjusting mechanism eliminates the need for adjustments throughout the lifespan of the transmission.

The Hydra-Matic 6L50 six-speed automatic is optional with 3.6L-equipped models. It has an aggressive 4.07:1 first gear ratio that delivers strong launches, but also provides tall overdrive ratios that decrease engine rpm and provide better fuel efficiency.

The 6L50 also includes driver shift control, with the driver taking control via paddle shifts located on the steering wheel after selecting the "M" mode on the console-mounted shifter.

Performance Algorithm Shifting (PAS) is included with the 6L50. It lets the electronic transmission controller override the automatic gear selection during high lateral acceleration maneuvers.

On SS models, the new Tremec TR 6060 six-speed manual is paired with the LS3. It is designed to handle the high torque characteristics of the engine, while providing shorter throws, smoother gear synchronization and greater overall shift feel with little or no vibration. Its specs include a solid 290 mm flywheel and single-plate clutch. The final drive ratio for LS3 vehicles is 3.45:1.

The highest-capacity automatic ever in a GM passenger car, the Hydra-Matic 6L80 six-speed automatic, is matched with the L99 engine. Like the 6L50 transmission, it features driver shift control and PAS. The final drive ratio on all automatic-equipped Camaro models is 3.27:1.