Acura = Alfa-Romeo = Alpina = Artega = Ascari = Aston-Martin = Audi = BMW = Bentley = Brabus = Bugatti = Buick = Cadillac = Caparo = Chevrolet = Chrysler = Citroen = Covini = Dacia = Daewoo = Daihatsu = Daimler = Devon = Dodge = Donkervoort = Farbio = Ferrari = Fiat = Fisker = Ford = GM = GMC = Gumpert = Holden = Honda = Hummer = Hyundai = Infiniti = Italdesign = Jaguar = Jeep = KTM = Kia = Koenigsegg = Lamborghini = Lancia = Land Rover = Leblanc = Lexus = Lincoln = Lobini = Lotus = MG = Mansory = Maserati = Maybach = Mazda = Mazel = McLaren = Mercedes-Benz = Mercury = Mindset = Mini = Mitsubishi = Morgan = Nismo = Nissan = Noble = ORCA = Oldsmobile = Opel = PGO = Pagani = Plymouth = Pontiac = Porsche = Renault = Rolls-Royce = Rover = Saab = Saturn = Scion = Skoda = Smart = Spyker = SsangYong = Startech = Stola = Strosek = Torino = Subaru = Think = Toyota = Tramontana = Valmet = Vauxhall = Venturi = Volvo = Wiesmann = Yes = Zagato = Zenvo.

Saturday, March 19, 2011

Dodge Viper SRT10, 2008

Dodge Viper SRT10, 2008


 
 
 
 The new 2008 Dodge Viper SRT10 boasts more of what performance aficionados crave: kick-in-the-pants, throw-back-in-the-seat power, combined with benchmark braking, world-class ride and handling, a race-inspired interior and bold exterior styling.

Standout Powertrain
When SRT powertrain engineers set out to get more venom from the 2008 Dodge Viper SRT10's powerplant, their objectives included not only increasing performance, but also complying with stringent regulatory requirements, such as federal Tier 2, Bin 5 and California's Low Emissions Vehicle (LEV) 2 mandates.
Working with specialists from McLaren Performance Technologies and Ricardo, Inc., SRT engineers began by following the racer's basic formula for more power: bigger displacement, more efficient breathing and higher engine speed.

The new Dodge Viper SRT10's deep-skirted V-10 aluminum engine block was revised for a 1-millimeter larger bore, raising the displacement to 8.4 liters from 8.3 liters. With strengthened bulkheads and improved water jackets for better cooling, the block includes pressed-in iron cylinder liners and cross-bolted main bearing caps for strength and durability.

The Viper SRT10's 8.4-liter engine breathes through new cylinder heads equipped with Computer Numerically Controlled (CNC)-shaped combustion chambers, larger valves and Variable Valve Timing (VVT). VVT electronically adjusts when the exhaust valves are open and closed according to engine speed and load, allowing the engine to "breathe" cleaner and more efficiently.

The 2008 Dodge Viper SRT10 V-10's two-piece intake manifold combines a cast aluminum lower with smooth runners for better air flow, bolted to a die-cast aluminum upper plenum. A revised air-cleaner box with a low-restriction filter sends air through a dual electronic throttle control into the intake module.

The air-fuel mixture in the cylinders is ignited by platinum-tip spark plugs fired by new individual plug coils mounted on the cylinder-head covers.

Within the cylinders, pistons are equipped with larger-diameter floating pins with bronze bushings for high-load capability. Forged powder-metal connecting rods are secured with aircraft-quality fasteners for increased fatigue strength.

Engine lubrication is managed by a larger oil pump and a swinging oil pickup adapted from Viper competition engines, to improve oil pressure in high-rpm and hard-cornering conditions.

Spent gases exit through tubular air-gap headers, which not only improve exhaust flow, but also ensure quick catalyst light-off for improved emission control. The headers' stamped stainless-steel outer shell acts as a thermal heat shield for the individual stainless-steel runners that contribute to better flow separation and exhaust tuning.

SRT engineers didn't stop there. Upgrades were developed to handle the 8.4-liter V-10's increased horsepower and torque levels, while improving traction, driveability - and durability.

The 2008 Dodge Viper SRT10's V-10 channels its power through a new, smaller-diameter, twin-disc clutch (a change from the previous larger-diameter, single-disc setup). The new clutch reduces rotating inertia by 18 percent, resulting in reduced clutch-pedal effort and improved engagement feel.

The transmission is the latest evolution of the Tremec T56 six-speed manual, known as the TR6060. It features 10 percent wider gears for higher torque capacity and a new synchronizer package. A new shifter system results in reduced shifter travel. Club racers will applaud a new provision for adding an external transmission cooler.

Benchmark Braking
Stopping power is another key attribute of the Dodge Viper SRT10 formula, with 14-inch brake rotors gripped by Brembo 44/40 dual opposing piston calipers in the front and Brembo 42/38 dual opposing calipers in the rear. An anti-lock braking system (ABS) prevents lockup during hard braking. This system results in a benchmark braking performance of 60-to-0 mph in less than 100 feet.

World-class Ride and Handling
The ride and handling of the 2008 Dodge Viper SRT10 is defined by a race-bred, fully independent, four-wheel suspension featuring lightweight, high-performance aluminum control arms and knuckles, damped by lightweight coil-over shock absorbers.
Where the power goes right to the road, SRT engineers retained the tried-and-true Dana M44-4 rear axle and outfitted it with a new GKN Visco-Lok speed-sensing limited-slip differential for improved traction.

Bold Exterior Styling
The 2008 Dodge Viper SRT10 remains available in two body styles - Roadster and Coupe. Both feature a dramatic new hood with a larger, more efficient hood scoop for air induction and larger, functional hood louvers to facilitate a greater cooling effect for the more powerful 8.4-liter, 600-horsepower V-10 engine underneath.

Eight exterior colors will be introduced throughout the model year - five of which are all-new including Venom Red, Snakeskin Green, Viper Violet, Viper Orange and Bright Blue. Racing stripes continue to be an option with six dual painted stripe colors available: white, black, silver, graphite, blue and red.

The Dodge Viper SRT10 Coupe's hard top with its "double bubble" styling makes it even more torsionally stiff than the Roadster. The 2008 Dodge Viper SRT10 Coupe offers increased downforce and high-speed stability with its sloping roofline and deck-lid spoiler. Plus, the Dodge Viper SRT10 Coupe has an additional 6.25 cubic feet of trunk space than the Viper SRT10 Roadster, for a total of 14.65 cubic feet. The roof and headliner structure offer more room to accommodate a safety cage, while maintaining as much headroom as possible.

Race-inspired Interior Design
The 2008 Dodge Viper SRT10 Roadster and Coupe cockpit retains its characteristic red push-button starter and performance-oriented, highly functional instrument panel with center-mounted tachometer and 220-mph speedometer.
Five interior colors will be available in 2008: black, and four new color combinations in black/red, black/blue, black/slate or black/natural tan. A choice of bezel finishes on the center instrument panel and console adds to the increased level of customization.

Friday, March 18, 2011

Porsche 911 Carrera 4, 2009

Porsche 911 Carrera 4, 2009


 
 
The all-wheel-drive, brawny Porsche 911 Carrera 4 Coupe and its higher-performance variant, Carrera 4S Coupe offer the skilled enthusiast driver exhilarating dimensions of dynamic driving enjoyment, even in inclement weather.

Both the Porsche 911 Carrera 4 and Carrera 4S boast a unique body over their all-wheel-drive powertrains. The broad-body design is more than an aesthetic statement; it's a function of the flared wheel arches that are needed to accommodate the Coupe's wide track, large wheels, and tires.

What's New for 2009
Since their introduction, the Porsche 911 Carrera 4 and 911 Carrera 4S have received continuous refinement. That constant improvement takes a quantum leap for the 2009 model year. Both cars receive dazzling new technologies for their core components: engines, transmissions and all-wheel drive systems.

The new, more potent and more fuel efficient engines boast direct fuel injection systems among other enhancements for improved performance and better fuel economy.

More Power from Less Fuel
Both the Porsche 911 Carrera 4 Coupe and 911 Carrera 4S Coupe receive new engines for 2009. The engines both boast direct fuel injection, new two-piece crankcases and revised intake and exhaust systems along with Porsche VarioCam Plus intake-valve timing and lift system.

The results are felt and appreciated immediately by the Porsche 911 Carrera 4 Coupe driver. Thanks to a 6.2 percent increase in horsepower, the 3.6-liter engine goes from 325 to 345 hp. Similarly, there's a 5.5 percent gain in torque, from 273 to 288 lb.-ft. Thanks to these improvements, a manual gearbox-equipped 2009 911 Carrera 4 Coupe accelerates from 0 to 60 mph (96 km/h) in 4.8 seconds.

Even more impressive, when the car is equipped with the new PDK Porsche double-clutch in place of MY 2008 Tiptronic S, the Porsche 911 Carrera 4 accelerates from 0 to 60 mph in 4.6 seconds, a full half second more quickly than its predecessor.

The 3.8-liter engine in the still-more potent 911 Carrera 4S Coupe exhibits equally awesome results, delighting its driver by sprinting to 60 mph in only 4.5 seconds when equipped with a manual gearbox and making that run in a mere 4.3 seconds with the PDK. This hedonistic acceleration is compliments of the new 3.8-liter engine's gain of 30 hp, from 355 to 385 hp, or 8.4 percent, and a 5 percent improvement in torque, from 295 lb.-ft. to 310.

Even with the substantial increases in horsepower and torque over the predecessor models, neither the 2009 3.6-liter Porsche 911 Carrera 4 nor the 3.8-liter Carrera 4S carries the stigma of a gas-guzzler penalty. And both engines earn their respective cars federal Low-Emissions Vehicle, category two (LEV-II) certification.

Two Clutches, No Clutch Pedal
To take full advantage of the newly designed engines, Porsche is offering drivers a transmission that delivers quicker acceleration than is possible with the standard manual gearbox while maximizing fuel efficiency. The new PDK (from the German Porsche- Doppelkupplungsgetriebe), or Porsche double-clutch, replaces the Tiptronic S as the optional gearbox in both the Porsche 911 Carrera 4 Coupe and 911 Carrera 4S Coupe.

Porsche was the first automaker to successfully use this transmission technology back in the 1980s when the transmission was developed for the mighty Porsche 962 Group C race car. The Porsche 911 Carrera 4 Coupe or Carrera 4S Coupe driver can allow the seven-speed PDK to shift up and down automatically, or he may opt to shift personally via steering-wheel mounted paddles or the console-mounted lever, the same as with the Tiptronic S.

Essentially, the PDK is a conventional, seven-speed manual gearbox with two electrohydraulically controlled, oil-bathed multiplate clutch packs. One clutch pack controls the oddnumbered gears and Reverse, the other the even-numbered gears. As one clutch pack engages the appropriate gear based on engine speed, load, and vehicle speed, the other clutch simultaneously disengages the previous gear. The results are seamless, instantaneous up- and downshifts, performed more quickly than could be done by even a skilled test driver.

Gains Through Loss
The newly revamped engines, both 3.6-liter and 3.8-liter, each weighs about 6 kg, or 13.2 pounds, less than its predecessor. The new engines offer increased structural rigidity for a quieter, more comfortable driving experience as well as improved durability. The innovative PDK, despite offering more gear ratios than the Tiptronic S is about 10 kg, or 22 pounds, lighter than last year's Tiptronic.

Porsche 911 Carrera, 2009

Porsche 911 Carrera, 2009

 

The very first sports car to bear the Porsche name was introduced to the world in June, 1948. Therefore, as the proud, independent Swabian automaker celebrates sixty years of sports car excellence, it is only fitting that it has a new Porsche 911 Carrera - for many the quintessential Porsche-to help mark the milestone.
This latest Porsche 911 Carrera Coupe and its higher-performance variant, the 911 Carrera S Coupe, are the most sophisticated, potent and environmentally friendly Porsche 911 Carrera models that Porsche has ever offered.

Despite their abundance of 21st century technologies, the 2009 911 Carrera Coupe and Carrera S Coupe clearly trace their engineering and aesthetic roots to the seminal Porsche. That original car evolved over fifteen years from the highly coveted 356 to the first 911 when, at the 1963 Frankfurt Motor Show, the ground-breaking 1964 911 Coupe debuted. As a testament to the genius of its design, after more than forty years of development and six generations of engineering improvements, the 911 Carreras still showcase a horizontally opposed, rear-mounted six-cylinder engine carried in a distinctive and instantly recognizable body.

Less Fuel In, More Power Out
Though the 2009 Porsche 911 Carrera Coupe and 911 Carrera S Coupe are each propelled by Porsche's familiar horizontally opposed, six-cylinder "boxer" engine, and despite the fact that both engines carry the same displacement designation as their immediate predecessors, both are substantially different than in 2008 model year.

Most critically, both the 3.6-liter engine in the Carrera Coupe and the 3.8-liter in the Carrera S Coupe are now equipped with direct fuel injection. In addition, the engines are of a new, more robust construction than before, boasting a two-part crankcase for increased structural rigidity. Further, both engines benefit from higher compression ratios and improved breathing, compared with the previous versions.

The results are astounding and immediately rewarding to the driver. The 2009 911 Carrera Coupe develops 345 horsepower at 6500 rpm and 288 lb.-ft. of torque at 4400 rpm. That's an output of 95.5 hp per liter and represents an increase of 20 hp and 15 lb.-ft. At the same time, fuel consumption is reduced by 6.4 percent over last year, when the cars are equipped with a manual gearbox. The all-new PDK transmission further improves fuel economy over the previous Tiptronic S, by a total of 12.5 percent.

This new engine propels the Carrera Coupe with a manual gearbox from a standing start to 60 mph (96 km/h) in 4.7 seconds and achieves a top speed of 179 mph (289 kmph) on the test track.

The blazingly quick Porsche double-clutch automatic transmission takes two-tenths of a second off that run, making the 0 to 60 mph (96 km/h) sprint in 4.5 seconds. The top speed is a track-proven 178 mph (287 kmph).

In Porsche Parlance, "S" Means More
The 2009 Porsche 911 Carrera S Coupe, like its predecessor model, is powered by a larger, more potent version of the Porsche horizontally opposed six-cylinder than its non-S sibling. As with the 3.6-liter version in the Porsche 911 Carrera, the 3.8-liter engine benefits from less weight, a two-piece crankcase, improved intake and exhaust, and direct fuel injection. The fruits of these refinements are 385 horsepower at 6500 rpm and 310 lb.-ft. of torque at 4400 rpm. This is an increase of 30 hp and 15 lb.-ft. of torque while achieving a power output of 101.3 hp per liter, without the need for any form of supercharging.

With a boost in potency, the Porsche 911 Carrera S Coupe with manual gearbox runs to 60 mph (96 km/h) in only 4.5 seconds, on its way to a track-proven top speed of 188 mph (302 kmph).

Thursday, March 17, 2011

Porsche Boxster S, 2009

Porsche Boxster S, 2009

 

The Porsche Boxster is continuing to expand its lead as the trendsetter in the two-seater open sports car segment. Already acknowledged as a lightweight athlete with lots of power on very little fuel, Porsche's mid-engined roadster now entering its second generation is be - coming an even greater performer on even less fuel than ever before.

The highlight of the new generation is the six-cylinder boxer engines developed as completely new power units from the ground up, displacing 2.9 liters in the Porsche Boxster and 3.4 liters in the Porsche Boxster S. Indeed, these engines belong to the same family as the particularly efficient power units introduced only recently in the 911 model series.

The new "basic" engine now develops maximum output of 255 bhp (188 kW) at 6,400 rpm, up 10 bhp over the previous model with 2.7 liters capacity. Featuring Direct Fuel Injection, the six-cylinder in the Porsche Boxster S churns out 15 bhp more than before, now offering 310 bhp (228 kW), again at 6,400 rpm.

Clearly, this gives both roadsters a truly outstanding power-to-weight ratio, each horsepower in the Boxster now required to move only 5.2 kilos or 11.5 lb, while on the Porsche Boxster S the power-to-weight ratio is even better at 4.4 kg/bhp or 9.7 lb.

For the driver this means maximum performance on minimum fuel, particularly with the like - wise brand-new Porsche-Doppelkupplungsgetriebe or PDK for short. Featuring this unique double-clutch gearbox, the Porsche Boxster S accelerates to 100 km/h or 62 mph in 5.2 seconds, the "regular" Boxster with PDK completing the same exercise in just 5.8 seconds. At the same time these outstanding two-seaters are more fuel-efficient than ever before, consuming 8.9 liters in the Boxster (equal to 26.3 mpg US) and 9.2 liters (equal to 25.5 mpg US) in the S model, in each case according to the EU4 standard and with PDK transmission.

It almost goes without saying that both power plants fulfill the strict EU5 and ULEV emission standards.

Self-confident looks
The new Boxsters are understandably very self-confident and even proud in their appearance, the extra-large air intakes characterizing the superior look of both models and accentuating their superior performance. On the Boxster two of the crossbars integrated in each side on the outer air intakes are finished in body color, on the Porsche Boxster S they come in black.

The LED positioning lights and foglamps now in horizontal arrangement come above the side air intakes. The direction indicators, in turn, are integrated in the new halogen headlights which, through their two-tube look, are reminiscent of the legendary Carrera GT.

As an option both Boxsters are available with new bi-xenon headlamps with a daytime light function, dynamic curve lights, a headlight washing system and automatic headlight range control. The separate LED daytime driving lights take the place of the foglamps whose func - tion is now performed by the bi-xenon headlamps optimized for perfect light spread and illu - mination to the side.

PDK: shifting gears more quickly, improving fuel economy by up to 16 per cent
Both Boxsters are now available for the first time with the Porsche-Doppelkupplungsgetriebe or double-clutch gearbox derived from motorsport and replacing the former Tiptronic S transmission. PDK comes with seven gears and is made up of two transmission units each connected to the drivetrain through their own clutch. One transmission unit comes with gears 1, 3, 5 and 7 as well as reverse gear, the other comes with gears 2, 4 and 6. Gears are shifted very fast, with supreme smoothness and without the slightest interruption of trac - tion, the clutch on one transmission unit opening up and the clutch on the other transmission closing at exactly the same time for an ongoing flow of power.

This entire process takes place automatically in selector lever position D, while the driver is also able to shift gears manually via paddles on the steering wheel or with the selector lever in the middle. In each case the process of disengaging and engaging the clutch is fully auto - matic, without requiring any intervention on the part of the driver.

PDK improves not only motoring comfort, but also allows even better performance and greater fuel economy than on the manual gearbox models. As a result, the Porsche Boxster S, bene - fiting from the uninterrupted flow of power, accelerates to 100 km/h or 62 mph in 5.2 se - conds, the Boxster completing the same exercise in 5.8 seconds.

Porsche 911 Targa 4, 2009

Porsche 911 Targa 4, 2009

 
 

The 911 Targas differ from both the Carrera Coupes and Cabriolets by dint of their stunning glass tops. The all-wheel drive Porsche 911 Targa 4 and Targa 4S are unique with roofs comprised entirely of two transparent panels. The glass extends from the windshield header back to the leading edge of the engine cover, from side frame to side frame.

This combination of glass roof panels with windshield, backlight, and side windows creates a glass canopy for the occupants that delivers total protection from the elements while offering clear, unobstructed vision in every direction.

When weather allows, the front glass panel, which completely covers the area over the front seats, may be opened like a conventional sunroof, sliding back beneath the rear glass panel. The rear glass panel is hinged and can open like a hatch, making the Porsche 911 Targa 4 and Targa 4S the only cars in the 911 model range with this feature.

Both glass panels are made from a specially formulated glass that absorbs nearly all ultraviolet radiation yet remains transparent. A standard closable sun shade can completely cover the sliding glass panel for privacy.

New for 2009
Foremost among them are totally new drivetrains boasting new direct fuel injection engines and the availability of Porsche's innovative double-clutch gearbox, PDK. Power from the new engines in the Porsche 911 Targa 4 and Targa 4S is now distributed to all four wheels via the same electronically controlled Porsche Traction Management (PTM) system found on the Porsche 911 Turbo.

The new engines deliver greater performance while using less fuel than their predecessors, thanks in large part to their direct fuel injection systems.
In lieu of the optional Tiptronic S transmission, Porsche 911 Targa 4 and Targa 4S owners may now specify the driver-shiftable PDK. This ground-breaking seven-speed automatic transmission is lighter, more efficient and quicker shifting than the previous Tiptronic S.

The electronically activated PTM is able to vary the torque split between front and rear wheels infinitely and instantaneously for optimum road holding, regardless of conditions.

Interior refinements for 2009 center around the redesign of the Porsche Communication Module (PCM) which boasts a larger screen, simplified operation, optional Bluetooth connectivity and the ability to play music from a variety of external sources.

More Power from Less Fuel
Both the Porsche 911 Targa 4 and 911 Targa 4S receive new engines which boast direct fuel injection, new two-piece crankcases and revised intake and exhaust systems along with Porsche VarioCam Plus intake-valve timing and lift system. By injecting the fuel directly into each cylinder's combustion chamber rather than the intake as is more common, combustion is cleaner and more complete. This technology reduces exhaust emissions and fuel consumption while simultaneously increasing engine potency.

The results are felt and appreciated immediately by the Porsche 911 Targa 4's driver. Thanks to a 6.2 percent increase in horsepower and a 5.3 percent gain torque over last year's model, the 3.6- liter engine goes from 325 to 345 hp and receives a gain in torque from 273 to 288 lb.-ft. A manual gearbox equipped 2009 911 Targa 4 can accelerate from 0 to 60 mph (96 km/h) in 5.0 seconds.

More impressively, when the car is equipped with the new double-clutch gearbox in place of last year's Tiptronic S, the Porsche 911 Targa 4 accelerates from 0 to 60 mph in 4.8 seconds. Yet the car also delivers an astounding 12.9 percent fuel economy gain over the previous model. When equipped with Porsche's optional Sport Chrono Plus package and innovative Launch Control to help maximize acceleration, the 0-to-60 mph time is reduced to 4.6 seconds. The 2009 Porsche 911 Targa 4 has a track-proven top speed of 177 mph (283 km/h).

The 3.8-liter engine in the still-more potent Porsche 911 Targa 4S exhibits equally awesome results, delighting its driver by sprinting to 60 mph in only 4.7 seconds when equipped with a manual gearbox and making that run in a mere 4.5 seconds with the PDK. The optional Launch Control lowers that to only 4.3 seconds. This hedonistic acceleration is compliments of the new 3.8- liter engine's gain of 30 hp, from 355 to 385 hp, or 8.4 percent, and a 5 percent improvement in torque, from 295 lb.-ft. to 310.

Even with the substantial increases in horsepower and torque over the predecessor models, neither the 2009 3.6-liter Porsche 911 Targa 4 nor the 3.8-liter Targa 4S carries the stigma of a gasguzzler penalty. And both engines earn their respective cars federal Low-Emissions Vehicle, category two (LEV-II) certification.

Porsche Boxster, 2009

Porsche Boxster, 2009

 
 
 

In 1948, the 356 was the first sports car to bear the Porsche name, and in July that year the lightweight mid-engined roadster achieved its first motorsport victory. In 1953, the Porsche 550 Spyder was launched. This agile, lightweight race car was powered by a high performance 'boxer' engine which took it to countless international victories.

Through 60 years of automotive evolution so much has changed. Yet every Porsche Boxster is built on these first principles. Sports performance, lightweight construction, agility and pure driving pleasure. The technology Porsche use may have developed, but the company's ability to produce a two-seat, mid-engined sports car unlike any other on the road remains.

Porsche presented the second generation of the mid-engined Porsche Boxster roadster at the 2008 Los Angeles Motor Show. The highlight of the new generation is the new flat-six 'boxer' engines, developed with new technical features from the ground up, providing not only more power, but also significantly greater fuel efficiency.

A further improvement of both fuel economy and performance is guaranteed by the Porsche Doppelkupplungsgetriebe (PDK), the new double-clutch gearbox now available as an option on both the Porsche Boxster and Boxster S.

Newly-developed 'boxer' engines deliver more power on less fuel
Displacing 2.9-litres, the engine of the Porsche Boxster develops 255 bhp (188 kW) in the Boxster, an increase of 10 horsepower over the prior 2.7-litre model.
The 3.4-litre power unit in the Porsche Boxster S now features Direct Fuel Injection, and delivers 310 bhp (228 kW), up by 15 bhp.

An impressive power-to-weight ratio imbues the two Porsche Boxster models with optimum driving dynamics. For example, with the new six speed manual transmission fitted as standard, the Porsche Boxster accelerates from 0-62 mph (100 km/h) in 5.9 seconds. And the Boxster S, when fitted with PDK transmission and Launch Control (featured in the optional Sports Chrono Package Plus), accelerates from 0-62mph (100km/h) in 5.0 seconds.

When combined with PDK, the new 2.9-litre engine fitted to the Porsche Boxster clearly breaks through the 30.0mpg fuel consumption boundary. Indeed, the figure of 31.0mpg (9.1 litres/100km) is approximately 10 per cent better than the previous model with the Tiptronic S automatic transmission. Increasing fuel economy by an even more significant 15 per cent to 30.1mpg (9.4 litres/100km), the 3.4-litre Boxster S with PDK offers an even greater saving over its predecessor with Tiptronic S.

In parallel with the improvement in fuel economy, so emissions of the engines have decreased also. Depending on model, emissions have been reduced by up to 16 per cent. The Porsche Boxster with the standard six-speed manual gearbox emits 221g/km CO2, and 214g/km CO2 when fitted with PDK. The Boxster S manual emits 223 g/km CO2, and 221 g/km CO2 with PDK.

Significantly, these developments move every Porsche Boxster model - whether manual or PDK - into Band F for Vehicle Excise Duty and company car taxation purposes.

Direct Fuel Injection standard on 3.4-litre S engine
The driver benefits from a further advantage of direct injection every time they touch the throttle pedal: with fuel being injected fractions of a second prior to combustion, the engines respond more directly and spontaneously to even the slightest movement of the driver's right foot. This is not only the case when accelerating, but also when lifting off the throttle, for engine speed drops more quickly and smoothly since there is no residual fuel left in the intake manifold which might otherwise prolong the combustion process.

Depending on engine load and speed, fuel is injected into the combustion chamber at a pressure of 120 bar. The big advantage is that unlike conventional intake manifold injection, direct fuel injection serves to form the fuel/air mixture directly in the combustion chamber. This better mixes the air and fuel in the cylinder, establishing an important prerequisite for clean and complete combustion. This ensures the 'homogeneous' operation of the power unit with a consistent balance of the fuel/air mixture in the combustion chamber at all times and under all running conditions. Such smooth operation guarantees optimum combustion and maintains low emissions, across a range of fuel qualities.

Design emphasises performance
The seamless blend of function and design has always been the Porsche philosophy. The result is a design consistency which is recognisable from every angle. A design which is both powerful and refined, and whose lines emphasise its sports performance.

The evolutionary styling of the next generation Porsche Boxster embodies these principles. The latest models are clearly distinguishable from outside through their newly-designed nose and tail. The new halogen headlights with their integrated direction indicators are reminiscent of the lights on the Carrera GT, while at the rear, new LED lights taper to the outside and are integrated elegantly in to the restyled bodywork.

The rod-shaped side lights in LED light conductor technology add distinction to the car's looks, which are further enhanced through their horizontal arrangement in the outer air intakes. Yet a further highlight is provided by the rectangular fog lamps featured as standard.

For the first time, the Porsche Boxster is available with a Lights Package featuring bi-xenon headlights, dynamic cornering lights and LED day-time driving lights. Replacing the fog lamps, these light units are made up of four LEDs positioned next to one another.

PDK: shifting gears more quickly, reducing fuel consumption
The new Porsche Boxster models are available with the Porsche-Doppelkupplungsgetriebe (PDK) carried over directly from motor sport, and replacing the former Tiptronic S torque converter automatic transmission. When equipped with PDK, the Porsche Boxster accelerates from 0-62mph (100 km/h) 0.1 seconds faster than with the manual six-speed gearbox.

Acceleration is particularly fast and dynamic with the optional Sports Chrono Package Plus featuring Launch Control; this offers maximum acceleration from a standing start and also a Race Track Gearshift Strategy for the fastest conceivable gear change as an exclusive highlight on the PDK models.
Benefiting from Launch Control, the respective models accelerate from a standstill to 62 mph (100km/h) a further 0.2 seconds faster.

Wednesday, March 16, 2011

Dodge Viper SRT10 ACR, 2008

Dodge Viper SRT10 ACR, 2008

 
 
 Derived from the all-new 2008 Dodge Viper SRT10, the heart and soul of the all-new 2008 Viper SRT10 ACR is SRT's new 8.4-liter aluminum V-10 engine that produces 600 horsepower and 560 lb.-ft. of torque.
The 2008 Dodge Viper SRT10 ACR stays true to the five key aspects of SRT: standout powertrain, bold exterior styling, race-inspired interior, benchmark braking and world-class ride and handling characteristics across a dynamic range.

Bold Exterior Styling
The 2008 Dodge Viper SRT10 ACR exterior styling cues offer not only bold aesthetics, but functional benefits on the track. These include a variable geometry "fanged" front splitter, an adjustable rear wing sculpted by CFD (Computational Fluid Dynamics) and optimized front dive planes. These new aerodynamic devices are formed in high-performance autoclaved carbon-fiber. By using both unidirectional and woven laminates, the aero equipment is optimized for the minimum weight possible.

The splitter and dive planes feature a clear-coated carbon-fiber weave on all Viper SRT10 ACR models.
The front splitter includes three removable rub strips that provide protection and wear resistance. Supported by stainless steel tension cables, the splitter is designed to absorb the energy from minor upward deflections.

The Dodge Viper SRT10 ACR aerodynamics are tuned and balanced to maximize downforce and provide increased levels of lateral grip. Each Viper SRT10 ACR also includes a track extension that replaces the center splitter rub strip and fills out the fanged splitter scallop for closed-circuit events. The aerodynamic effect of the track extension is a reduction in overall drag and an increase in front downforce of nearly one-third.

The front fog lamps have been deleted and replaced with lightweight filler panels.
The 2008 Viper SRT10 ACR features a signature two-tone paint scheme with a black center section. An optional driver's stripe is available on a two-tone Viper Red or a Viper Black ACR. The driver's stripe also features a sewn leather accent on the steering wheel. A clear-coated exposed weave is featured on the rear carbon-fiber wing of all two-tone and driver's stripe Viper SRT10 ACR models.

A standard Viper SRT10 monotone paint scheme is also available featuring a body-color rear wing and dual painted Viper stripes.
The 2008 Dodge Viper SRT10 ACR is available in five colors: Viper Red, Viper Black, Viper Violet, Viper Bright Blue Metallic and Viper Very Orange.
Lightweight forged aluminum Sidewinder wheels are painted gloss black to complete the one-of-a-kind exterior styling.

Dodge Viper SRT10 Roadster, 2008

Dodge Viper SRT10 Roadster, 2008

 
 

The new 2008 Dodge Viper SRT10 boasts more of what performance aficionados crave: kick-in-the-pants, throw-back-in-the-seat power, combined with benchmark braking, world-class ride and handling, a race-inspired interior and bold exterior styling.

While every SRT vehicle offers balanced, overall performance, the heart and soul of the new 2008 Dodge Viper SRT10 is its standout powertrain. For 2008, SRT ups the ante with a new, 8.4-liter aluminum V-10 engine that produces an astounding 600 horsepower and 560 lb.-ft. of torque.
The new 2008 Dodge Viper SRT10 will arrive in Dodge showrooms in North America this summer with a new level of customization options, including five new exterior colors, four new interior color combinations and a new wheel design.

Standout Powertrain
When SRT powertrain engineers set out to get more venom from the 2008 Dodge Viper SRT10's powerplant, their objectives included not only increasing performance, but also complying with stringent regulatory requirements, such as federal Tier 2, Bin 5 and California's Low Emissions Vehicle (LEV) 2 mandates.

Working with specialists from McLaren Performance Technologies and Ricardo, Inc., SRT engineers began by following the racer's basic formula for more power: bigger displacement, more efficient breathing and higher engine speed.

The new Dodge Viper SRT10's deep-skirted V-10 aluminum engine block was revised for a 1-millimeter larger bore, raising the displacement to 8.4 liters from 8.3 liters. With strengthened bulkheads and improved water jackets for better cooling, the block includes pressed-in iron cylinder liners and cross-bolted main bearing caps for strength and durability.

The Viper SRT10's 8.4-liter engine breathes through new cylinder heads equipped with Computer Numerically Controlled (CNC)-shaped combustion chambers, larger valves and Variable Valve Timing (VVT). VVT electronically adjusts when the exhaust valves are open and closed according to engine speed and load, allowing the engine to "breathe" cleaner and more efficiently.

The 2008 Dodge Viper SRT10 V-10's two-piece intake manifold combines a cast aluminum lower with smooth runners for better air flow, bolted to a die-cast aluminum upper plenum. A revised air-cleaner box with a low-restriction filter sends air through a dual electronic throttle control into the intake module.
The air-fuel mixture in the cylinders is ignited by platinum-tip spark plugs fired by new individual plug coils mounted on the cylinder-head covers.

Within the cylinders, pistons are equipped with larger-diameter floating pins with bronze bushings for high-load capability. Forged powder-metal connecting rods are secured with aircraft-quality fasteners for increased fatigue strength.
Engine lubrication is managed by a larger oil pump and a swinging oil pickup adapted from Viper competition engines, to improve oil pressure in high-rpm and hard-cornering conditions.

Spent gases exit through tubular air-gap headers, which not only improve exhaust flow, but also ensure quick catalyst light-off for improved emission control. The headers' stamped stainless-steel outer shell acts as a thermal heat shield for the individual stainless-steel runners that contribute to better flow separation and exhaust tuning.

SRT engineers didn't stop there. Upgrades were developed to handle the 8.4-liter V-10's increased horsepower and torque levels, while improving traction, driveability - and durability.

The 2008 Dodge Viper SRT10's V-10 channels its power through a new, smaller-diameter, twin-disc clutch (a change from the previous larger-diameter, single-disc setup). The new clutch reduces rotating inertia by 18 percent, resulting in reduced clutch-pedal effort and improved engagement feel.

The transmission is the latest evolution of the Tremec T56 six-speed manual, known as the TR6060. It features 10 percent wider gears for higher torque capacity and a new synchronizer package. A new shifter system results in reduced shifter travel. Club racers will applaud a new provision for adding an external transmission cooler.

Monday, March 14, 2011

Smart fortwo electric drive, 2010

Smart fortwo electric drive, 2010



Electric drive taken into account in the very first concept
Electric drives have been part of the smart concept right from the start. The later integration of the components needed for electric drive was planned at a very early stage. For example, there is space for the battery in the underfloor between the axles where the tank is located in other smart models . The electric drive module does not limit the space available in the smart fortwo electric drive in any way; there is just as much interior and luggage compartment space as in a smart fortwo with a combustion engine.

Powerful drive
A 30 kW magneto-electric motor is installed at the rear of the new smart fortwo electric drive and reacts immediately and without delay. Powerful torque of 120 Newtonmetres is immediately available. This results in a surprising amount of power when pulling away. The smart fortwo electric drive accelerates from 0 - 60 km/h in 6.5 seconds - just as quickly as a petrol model which it initially leaves behind it. Its maximum speed has been deliberately limited to 100 km/h, a suitable speed for the city. Thanks to the power characteristic of the electric motor, the smart fortwo electric drive needs just one single fixed gear ratio. There is no need for any gear changing - a major advantage in dense city traffic. To reverse, the engine's direction of rotation changes.

The second generation smart fortwo electric drive is powered by a lithium-ion battery from Tesla Motors Inc. with capacity of 14 kWh. It is simple to charge at any fused 220 Volt socket.

A fully charged battery is sufficient for up to 115 kilometres of driving fun (NEDC). This range is more than enough for city traffic as studies have shown that cars drive an average of 30 - 40 kilometres per day in towns and cities. For this, the vehicle only needs to be charged for three hours. Plugging the car in overnight will fully recharge the battery.

Electronics optimise the battery charge status and power consumption
Special electronics ensure that all is well with the battery. The electronics also monitor the charging process and control the capacity display.The vehicle's power electronics supply the electrical system with electric current from the battery via a DC/DC converter. In addition, they also control the heating and air conditioning, for example, to minimise the strain on the battery. Clever drivers can air condition their smart fortwo electric drive in advance as long as their vehicle is being charged at home - the long-standing dream of stationary cooling becomes a reality! No other car offers this comfortable option.

The new second generation smart fortwo electric drive is based on the smart fortwo coupé/cabrio passion. As well as air conditioning with automatic temperature control all the equipment features of the popular passion equipment line are included. In addition to the battery indicator, an ammeter shows the consumption and the recuperated energy.

Very low costs
Based on German electricity prices it costs approximately two euros to drive the smart fortwo electric drive for 100 kilometres (even cheaper with off-peak electricity). This is less than the price of two litres of petrol. Electric power is much cheaper in lots of countries. The maintenance costs are considerably lower than those of a smart with a combustion engine as the battery, motor and other components of the electric drive are maintenance-free.

In addition to the low running costs, there are further cost advantages in lots of countries and cities. For example, drivers of a smart for two electric drive are entitled to national subsidies, tax advantages or exemption from local toll charges such as the city centre congestion charge in London.

The smart for two electric drive in major cities in Europe and the USA
From the end of 2009 the smart fortwo electric drive will be delivered to selected leasing customers. Leases will be offered for a period of four years and 60,000 kilometres. The first vehicles are destined for the "e-mobility Berlin" project . Here, in cooperation with the energy provider RWE and with the support of the German government and the city of Berlin Daimleris creating the conditions for running battery-driven vehicles with no local emissions.This includes setting up a network of electricity charging stations that enable intelligent communication between electric vehicles and the power network so that the battery can be charged when electricity is cheapest.

Sunday, March 13, 2011

Chevrolet Sail, 2011

Chevrolet Sail, 2011

The Chevrolet Sail with a choice of class-leading 1.2-liter S-TEC II and 1.4-liter S-TEC III engines. The 1.2-liter engine achieves best in class fuel economy under comprehensive road conditions of 5.7 L/100 km. It also generates power of 53.1 kW/L, enabling the Chevrolet Sail to go from 0 to 100 km/h in 12.9 seconds. The 1.4-liter engine offers power per liter of more than 54.3 kW/L, goes from 0 to 100 km/h in 11.9 seconds, and has fuel economy under 5.9 L/100 km.

The engines incorporate the Variable Geometry Intake System (VGIS), which provides smooth power delivery and torque across all engine speeds. Lightweight materials are used in the engine, transmission and body, further increasing fuel efficiency. The optimized friction coefficient in the transmission and tire rolling coefficient reduce energy loss caused by mechanical operation. In line with Shanghai GM's Drive to Green strategy, both engines meet China's Phase IV emission standard (as well as the Euro IV standard) and can be upgraded to meet China's Phase V emission standard.

Although it is classified as a small car, the Chevrolet Sail ensures a fun driving experience. Its five-speed manual transmission offers smooth gear shifting. The sporty-looking steering wheel provides pinpoint handling and easy control, while the sporty yet solid chassis provides comfort and excellent handling. The driver enjoys maximum visibility courtesy of the Chevrolet Sail's large windshield, seats designed for local users and no-blind-spot rearview mirror.

Stylish Exterior, Spacious Interior
Like other vehicles wearing the Chevrolet bowtie, the Chevrolet Sail is sporty, enjoyable to drive and offers good value for money. The Sail features Chevrolet's trademark horizontal split grille with the gold Chevrolet emblem showcased in the middle. Three muscular sidelines provide the car a three-dimensional look. A unique short-in-front, long-in-back suspension brings a sporty edge to the exterior. The streamlined shape of the vehicle adds a dynamic styling element while reducing drag, for lower fuel consumption. The Chevrolet Sail is initially available in six exterior colors: Crescent Silver, Jasmine White, Sky Blue, Coral Red, Amber Orange and Starfish Blue.

The interior is likewise unique and all Chevrolet. It includes the brand's twin-cockpit design as well as a flexible, modern central control panel equipped with a radio, CD player and MP3 interface. Designers have added a sporty touch through a double-digital screen and chrome plating. The Chevrolet Sail's adoption of a central fuel tank, a short front and rear suspension, and arch-shaped doors maximizes interior space for up to five people. There are 24 interior storage compartments for added convenience.

Advanced Safety
The Chevrolet Sail is expected to achieve four stars in China New Car Assessment Program (C-NCAP) testing. The Chevrolet Sail's safety cage construction with crumple zones offers class-leading passenger protection. A steel frame surrounds the fuel tanks, for added safety. Dual air bags in front, a retractable steering column, antilock brakes with electronic brake-force distribution, child safety locks and a stronger child seat system are standard. The Chevrolet Sail also offers outstanding pedestrian protection.

Developed in China for Emerging Markets
The Chevrolet Sail was jointly developed by Shanghai GM and PATAC off a new architecture in accordance with GM's Global Vehicle Development Process (GVDP) and worldwide standards for engineering and quality. The development team for the Chevrolet Sail factored in local climate and driving conditions as well as local fuel quality and Chinese driving habits in the new model's design. The vehicle's assembly followed the DTS global C-BOB (best of best) standard.

The Chevrolet Sail was put through more than 2 million kilometers of testing in extreme hot and cold weather conditions.
To ensure that parts and components meet Chevrolet's international standards in terms of quality, service, technology and price, 95 percent of components were supplied by members of GM's global supply chain, with more than 40 percent coming from industry-leading component groups or their joint ventures.