Showing posts with label Chevy. Show all posts
Showing posts with label Chevy. Show all posts

Sunday, August 31, 2008

2010 Chevrolet Camaro V-6 Overview

2010 Chevrolet Camaro V-6

For this early drive, Chevy served up only the base, V-6 version of its new ponycar (V-8 drives will follow in about two months), but that quickly proved no disappointment. The headline news: The "base" engine is the same DOHC, 24-valve 3.6L V-6 that serves in the 2008 Motor Trend Car of the Year, the Cadillac CTS. Outfitted with variable valve timing and direct injection, this high-tech beauty will romp with more than 300 hp (final output is still TBD) and should deliver EPA city/highway fuel economy ratings of least 18/26 mpg - though Chevy is aiming for 19/27 mpg.

Yes, two six-speeds will be offered with the V-6 (and, by the way, the V-8): an Aisin manual and a HydroMatic automatic with wheel-mounted manual shift buttons (the V-8 manual will be a Tremec unit). All base Camaros will be equipped with an FE2 suspension package, though chief engineer Doug Houlihan says Chevy is "considering" adding, as an option, the uprated FE3 suspension that'll be standard on V-8 cars. Base tires are 245/55R18 M+S BFGoodrich Traction T/As on 18-in. alloys; optional rubber will include 19- and 20-in. Pirellis (the latter available in summer or snow versions) plus an available 21-in. wheel-and-tire upgrade (summer only). Brakes are single-piston calipers all around, with cast-iron rotors (12.6 in.) up front and aluminum discs (12.4 in.) in back. (All Camaro V-8s will sport bigger, four-piston Brembo binders and a larger master cylinder for improved brake feel.) An optional RS package will include the 20-in. rims plus HID headlamps, a rear spoiler, and door-sill trim, among other upgrades.

Inside, the 2010 Camaro recalls the flavor of the '67 model that inspired it -- squarish primary instruments plus a rectangular four-pack of secondary gauges in the center console -- but it's far too stylish and modern to appear "retro." A thick, deep-dish steering wheel is unique to the new Camaro, another reminder of project cash well-dispensed. Seats will be trimmed in cloth or optional leather; one gripe, as on the Pontiac G8, is the lack of a power backrest adjustment (on the Camaro it's a manual ratchet). The wheel is a tilt-telescoping model, which in combo with the smartly placed pedals helps deliver a near-ideal driving position.

Buckle up, because the new Camaro runs like a cheetah escaping the zoo. The engine twirls for the 7000-rpm redline as if were born to live there, but at cruise it withdraws, like a fine personal valet, almost into invisibility. The high-pitched exhaust note is decidedly non-musclecar; it almost says "Asian tuner car." Houlihan admits that engineers are still tweaking the sound, though. The production car will likely emit a more baritone growl. Or not. Prepare to be surprised.

Chevy is currently recording 0-to-60-mph sprints of about 6.1 sec or so, but the goal is to break the six-second barrier. Give us a car, guys. We'll get you the 5.9-sec run you're after. Top speed, by the way, is an electronically limited 155 mph. Yes, with the V-6. Both transmissions are superb, the automatic responding quickly to shift-button commands and the manual smooth and slick (pedals are well-placed for heel-and-toe downshifts).

When outfitted with 18-in. wheels and tires and the V-6, the Camaro may wear a "base car" label, but you'd never know it by the drive. The hydraulic power steering delivers excellent feel, with deft off-center response and plenty of mid-corner feedback. The chassis, boasting a Mustang-crushing independent rear, powers through bends with a level of grip that simply obliterates any "base car" notions. Even pushed as hard as you'd dare on public roads, the Goodriches rarely protest or slip, instead digging in and doing their best to pry your eyeballs from your skull. Stability control steps in only mildly, catching minor missteps (ooohh, that corner was just a bit tighter than expected) without quashing useful dabs of oversteer. Body rigidity is exemplary, too. The Mustang can only dream of delivering handling at this level of performance and sophistication.

With moves like this in the entry Camaro - base price in the mid-to-low $20s - it's drool-inspiring to imagine what the car will do with, say, the optional 20-in. summer rubber (not to mention the mega-output V-8s with FE3 chassis tuning). What's more, even in "stripped" form the Camaro feels distinctly upmarket. Wind noise is almost nonexistent. The ride polishes off road imperfections while remaining poised to spring, catlike, to quick steering inputs. Brakes are sturdy and bite hard early into the pedal's travel. Mustang? Nah. The new Camaro feels more akin to an American Infiniti G37. And remember: Thus far, our driving has been limited to the base V-6 version.

In an era when "mega-ultra-hyped blockbuster" often means "I wasted my money on that?" the new Chevy Camaro pushes back against unfulfilled expectations. It delivers. The look is there. The performance is there. The value is there.

Source: motortrend

2009 Chevrolet Corvette ZR1

2009 Chevrolet Corvette ZR1

Chevrolet will pay for every new ZR1 owner to attend a high-performance driving school, probably at Bob Bondurant in Phoenix or Spring Mountain in Pahrump, Nevada, both of which feature Corvettes (and may end up getting the preproduction ZR1s we're driving today). A lapping session with ace development engineer Jim Mero at the helm is equally instructive and credits the Brembo brakes and Pilot Sports as the underappreciated heroes of this package. Mero initiates braking where mortal drivers accustomed to ordinary performance cars would be trailing off the brakes. Their power and fade-resistance seems infinite, and they're said to have glowed red while still providing confident retardation during 24-hour racing durability tests. He points out that with 638 horses on tap and a torque curve as wide as Montana, you can upshift early at convenient locations on the track without losing time.

Mero also carries way more speed through the turns than seems possible on a run-flat tire good for 20,000 miles of tread life and boasting reasonable rain performance. An asymmetric tread design with cornering rubber on the shoulders and rain channels inside, a special tread compound, and unique internal architecture conspire to deliver maybe 80 percent of a Pilot Sport Cup racing tire's peak grip with real-world liveability and more forgiving limits. (They're so grippy it took an hour for a ZR1-team driver to nail our smokin' sideways shots.) Our next ZR1 encounter will include testing, but here are some more Chevy-supplied numbers to chew on in the meantime: 1.01 g steady-state lateral acceleration, more than 1.2 g braking grip, and a 0-to-100-to-0 mph time of under 11.0 seconds, besting the Dodge Viper and Shelby Cobra benchmarks by at least a second or two. Oh, and let's not forget Mero's production-car Nurburgring lap record time of 7 minutes 26.4 seconds.

Having witnessed the true power of this chassis, speeds build quickly with increasing confidence during the next lapping session. The low hood affords a perfect view of every corner apex and accurate, nicely weighted steering helps keep a laser lock on the driver's intended line, but with 52 percent of the car's reasonably light 3350 pounds pressing down on 285/30R19 tires in front, the steering feel will never be confused with that of a mid- or rear-engine car, and exceptional care must be used when exercising the loud pedal if the various safety nets are all disabled (it's very forgiving in full nanny mode). Many of the same tech tricks that Porsche uses to make its rear-heavy 911s handle safely and neutrally have been employed just as effectively by the ZR1 team to tame this front-heavy ultra-powerful rear-driver.

Pit again to let the adrenaline subside, and then let's take a spin on some bumpy public roads to sample the suspension's Tour setting and assess the car's general commuting demeanor. A bit of supercharger whine can be heard before the exhaust opens, but aside from that the ZR1's as demure and docile as any other Corvette. The short sidewalls exact a ride-harshness penalty that's beyond what the magnetic shocks can entirely smother, but it's not punishing, and it's considerably less flinty than the Sport setting. Variable-ratio steering (now on all Vettes) makes low-speed parking maneuvers easier while ensuring sneeze-proof high-speed stability.

Okay, so we're shocked (and more than a little proud) that America's sports car established a lap-record at the Nurburgring. We're awed by its high handling limits and overall tractability. And 15 or 20 hot laps of a circuit like the Lutzring could probably convince any skeptic that $30K worth of hardware value has been added to the already impressive Z06. But will the Corvette faithful take our word for it without benefit of that track time and plunk down $105,000 for a base ZR1-let alone $10K more for the package that makes the car feel expensive (hand-stitched leather, full-power/memory seating, and Bose Nav/audio system)? Let's hope so, because it'll be way tougher convincing the Ferraristi or Lambophiles that they'll be happier in this better performing, more fuel-efficient, probably more reliable but-let's face it-less exotic looking and feeling Chevy. Maybe the ZR1 driving school needs to happen before the sale...

The difference between the 7.0-liter Z06's basso rumble and the ZR1's baritone roar is striking. Sure there are bigger lungs on the Z06, but the difference has more to do with what happens in the tunnel. Both use two big pipes with a crossover, but the Z06 has an H-configuration with a short connector pipe that simply allows the reverberations to bounce between pipes. The ZR1 uses an X connection that comingles the actual exhaust. The H-pipe setup tends to preserve a slightly rougher second-order sound in each pipe, while the X (or any single-exhaust system) results in a higher fourth-order sound. Both variants use an exhaust valve in the muffler, but the Z06's opens at 3500 rpm and still includes some sound-attenuating perforations, while the ZR1's opens more of a straight shot at 3000 rpm.

Hot-lapping the ZR1 makes it hard to imagine owners feeling the need to add power to this setup, but you know it will happen. And it won't be hard. Hack the engine-control chip to run more boost with slightly higher engine or supercharger revs and the power will come. But the team cautions that any additional power will drive temperatures up dramatically resulting in spark retardation unless a larger cooling circuit is installed, along with a taller intercooler poking through the hood and blocking the clean sight lines. Durability is also likely to suffer. As it is, to keep from blowing the heads off the team switched to four-layer gaskets, strengthened the heads, and fitted larger bolts torqued for 25 percent higher clamping loads.

Source: motortrend

Wednesday, October 31, 2007

2009 Chevrolet Camaro Review

2009 Chevrolet Camaro
We are all excited to see the official 2009 Camaro up close and in person – but we never thought that anyone would actually get emotionally attached to it. It seems though that Bob Lutz – GM’s Vice chairman – was so excited to see the first fully finished prototype that he literally “ran over to it, and hugged it”.

“I have the photo to prove it — but of course we can’t show it to you just yet,” Lutz said. “Seeing his beloved Chevrolet Camaro as a real car…in near-final metal, glass, rubber and plastic…transformed from a visionary dream into a highly drivable reality…well, it was almost too much for him,” Lutz said of Welburn.

Lutz was also excited that he was the first one to drive it. “I got to drive it first, not only because ‘rank has its privileges,’ but because I didn’t want anyone stuffing it into a barrier before I got to drive.” He was able to give us a little insight of how well the car performs.

“I loved the response, the sound, the steering and the brakes,” he said. “There’s more work to be done, for sure, and the group knows it. They still have time for further development. The goal of the team led by Gene Stefanyshyn is to produce the finest car in its class, ever. Do I think they will get there? I wouldn’t bet against that team!”

He also noted that the Camaro prototype “looked as awesome as the concept, and the blotchy black/white camo scheme could not destroy the great stance and proportion.” Lutz also noted that quality levels appear to be high. “The body fits were already better than what came off the line a few years ago,” he wrote. “The interior had some handmade plastic parts and showed some gaps but was remarkable for the first car.”

We say congrats to the happy Lutz for getting the first drive and we envy his time with the expectant vehicle. Maybe soon we can get our chance behind the wheel and feel its addictive power.
Source: chevrolet

Sunday, August 19, 2007

2008 Chevrolet HHR SS

2008 Chevrolet HHR SS

GM the producer of GMC floor mat will showcase the newest member of Chevrolet's SS family at the Woodward Dream Cruise this coming Saturday, August 18, 2007.

The 2008 HHR SS bears the popular styling and capabilities of the HHR family boost by the performance of its turbocharged and intercooled engine that produces 260 horsepower. The 2008 HHR SS is also given a one-of-a-kind exterior styling and a distinctly SS interior.

The vehicle was built through the efforts of GM Performance Division, together with a team of designers and engineers that are dedicated to producing high-performance vehicles.

Standard exterior and interior features of the 2008 HHR SS include:

Exterior
* All-new front and rear fascias
* New front grilles
* A rear spoiler
* 18-inch polished forged aluminum wheels wrapped with Michelin performance all-season tires

Interior
* SS-embroidered sport seats with an ultra suede inserts
* A new gauge cluster with 140 mph speedometer
* An A-pillar boost gauge
* A new driver oriented steering wheel and shifter that enhanced driving capabilities

The HHR SS will also be offered with a load of safety and convenience features such as the StabiliTrak electronic stability control system and the four-wheel disc brakes with ABS. Side impact airbags together with the power operated sunroof are offered as options.
Source: seatbealt

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