2009 – 2010 Porsche Boxster – Top Speed

11 Oct 2014 | Author: | Comments Off on 2009 – 2010 Porsche Boxster – Top Speed
Porsche Boxster

2009 – 2010 Porsche Boxster

Porsche Boxster

Horsepower @ RPM: 310@7200 Torque @ RPM: 265@4750 0-60 time: 5.2 sec. Top Speed: 170 mph 0-100 time: 11.4 sec.

For the past twelve years, the Boxster has been playing the chase-the-911 with its styling. Now the 2009 refreshed Boxster gets more of its own look, sorta. Instead of taking its styling cues from the 911, it looks a little more like the ultra-fast Carrera GT .

The new Boxster features a newly designed front and rear ends. The new halogen headlights with their integrated direction indicators are reminiscent of the lights on the Carrera GT, the new LED rear lights tapering out to the outside and integrated elegantly in the modified rear end of the car.

Under the hood, Porsche placed a 2.9-liter engine that delivers 255 bhp (an increase of 10 hp). The S version gets a 3.4-liter power unit that delivers 310 hp (up 15hp). Mated to a the standard six-speed manual gearbox, the new Boxter makes the 0 to 60 mph sprint in 5.9 seconds.

Equipped with the PDK double-clutch gearbox, the sprint will be made 0.1 seconds faster.

As it turns out the increase in power will not mean worse fuel economy. The Boxster equipped with PDK averages 26.3 mpg, and 25.5 mpg for the Boxster S. That’s about a 4 mpg improvement from the Tiptronic automatic transmission cars.

Full details in the press release after the jump.

Press release

Dr. Ing. h.c. F. Porsche AG, Stuttgart, is presenting the second generation of the mid-engined Boxster and Cayman sports cars for the first time at the Los Angeles Auto Show. The highlight of the new generation is of course 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 than their predecessors.

A further improvement of both fuel economy and performance is guaranteed by the Porsche-Doppelkupplungsgetriebe or PDK for short, the new double-clutch gearbox.

Newly developed Boxer engines with even more power on even less fuel

2.9 litres six-cylinder boxer engine, 255 bhp @ 7200 rpm, 214 lb-ft from 4400-6000 rpm and 3.4-litres six-cylinder boxer engine, 310 bhp @ 7200 rpm, 265 lb-ft @ 4750 rpm

Displacing 2.9 litres, the “basic“ engine develops 255 bhp (188 kW) in the Boxster and 265 bhp (195 kW) in the Cayman, an increase by 10 and, respectively, 20 horsepower over the preceding models. The 3.4-litre power unit in the S-versions, benefiting from Direct Fuel Injection, now delivers 310 bhp (228 kW) in the Boxster S and 320 bhp (235 kW) in the Cayman S, up by 15 and, respectively, 25 bhp.

An outstanding power-to-weight ratio ranging from 4.2 kg (9.3 lb)/bhp on the Cayman S to 5.2 kg (11.5 lb)/bhp on the Boxster offers the driver maximum driving dynamics on minimum fuel. As a result, the Cayman S with PDK and Launch Control featured in the optional Sports Chrono Package accelerates to 100 km/h in 4.9 seconds, setting the benchmark in the range, while the Boxster with its six-speed manual gearbox featured as standard completes the same exercise in 5.9 seconds.

Featuring PDK, both the Boxster and the Cayman for the first time outperform the nine-litre consumption mark: Both models with the new 2.9-litre Boxer engine make do with 8.9 litres/100 kilometres (equal to 26.4 mpg US) according to the EU4 standard 11 per cent less than the former models with Tiptronic S. Reducing fuel consumption by an even more significant 16 per cent to 9.2 litres/100 kilometres (equal to 25.5 mpg US), the 3.4-litre versions with PDK offer an even greater saving over their predecessors with Tiptronic S.

Roadster and Coupé with even more signs of distinction

The new two-seaters are clearly distinguishable from outside through their newly designed front and rear ends. The new halogen headlights with their integrated direction indicators are reminiscent of the lights on the Carrera GT, the new LED rear lights tapering out to the outside and integrated elegantly in the modified rear end of the car.

From the front the Roadster and Coupé differ clearly from one another through the distinctive design of their air intakes, from the rear through the new rear panels with diffuser inserts on the Boxster and a wind deflector plate on the Cayman.

The rod-shaped positioning lights in LED light conductor technology add a particular touch of class in terms of the cars’ looks, also through their horizontal arrangement in the outer air intakes. Yet a further highlight is provided by the foglamps featured as standard rectangular in shape on the Boxster, round on the Cayman. For the first time both models are available with a Lights Package featuring bi-xenon headlights, dynamic curve lights and LED daytime driving lights.

Replacing the foglamps, these light units are made up on the Boxster of four LEDs positioned next to one another, while on the Cayman four LEDs are arranged in round light units like the eyes of a dice.

PDK: shifting gears even more quickly, reducing fuel consumption 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 its 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 automatic, 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 Boxster S, benefiting from the uninterrupted flow of power, accelerates to 100 km/h or 62 mph in 5.2 seconds, the Boxster completing the same exercise in 5.8 seconds.

On the Boxster S fuel consumption is down by no less than 16 per cent to 9.2 liters/100 kilometers or 25.5 mpg US versus the former model with Tiptronic S, thanks to the optimum

shift points and transmission ratios offered by PDK. The “basic” model equipped with PDK even remains below the nine-liter mark, fuel consumption of just 8.9 liters/100 kilometers (equal to 26.3 mpg US) representing a decrease in fuel consumption by 11 per cent versus the former model.

Equipped with PDK, the new models accelerate to 100 km/h or 62 mph 0.2 seconds faster than before thanks to the new Launch Control with electronic power management ensuring optimum acceleration from a standstill.

Launch Control is activated by the Sport Plus button which, in conjunction with PDK, comes both on the optional Sports Chrono Package and on the likewise optional Sports Chrono

Package Plus. The latter is available exclusively in combination with Porsche’s optional PCM Communication Management and offers both an additional performance indicator and an individual memory function.

The Sport Plus button also comes with a particularly sporting gearshift strategy for the PDK double-clutch gearbox ideally suited for the race track.

Yet a further feature on both equipment packages is the particularly sporting set-up of other vehicle systems available at the touch of a button for example engine management, PSM Porsche Stability Management, and the optional PASM suspension. The packages are clearly recognizable at first sight through the activation buttons in the center console and an analogue/digital stopwatch on the instrument panel masterminded through the lever on the steering column and enabling the driver, to mention just one example, to precisely record his lap times on the track.

Both models come as standard with a further improved six-speed manual gearbox. Another standard feature in both cases with the manual gearbox and Porsche’s new PDK is the Start-Off Assistant relieving the driver from the usual chores of everyday motoring and preventing the car from rolling forwards or backwards when setting off on a gradient by automatically holding the car in position and letting go of the brakes in a controlled process after the driver has released the brake pedal. Without having to pull the handbrake, the driver is therefore able to set off on a gradient smoothly and comfortably thanks to Porsche’s new Start-Off Assistant.

Suspension even more dynamic and comfortable than before

The exceptional driving pleasure offered by both models in the Boxster range is also a result of the wide track and the newly set-up suspension improving the cars’ driving dynamics to an even higher standard despite the enhancement of motoring comfort. One of the features contributing to the re-set suspension is the newly developed tyres offering a further improvement of performance together with greater driving comfort by reducing tire pressure on the rear wheels.

The Boxster now comes as standard on 17-inch wheels half an inch wider than before in order to take up the larger brake system of the Boxster S on the front axle. Tire dimensions remain unchanged at 205/55 ZR 17 up front and 235/50 ZR 17 on the rear wheels. The Boxster S, in turn, comes on18-inch rims running on 235/40 ZR 18 tires at the front and 265/40 ZR 18 tires at the rear.

In conjunction with 18- and 19-inch wheels, the new models in the Boxster range are also available with a limited-slip differential on the rear axle. Locking action in this case is 22 per cent under power and 27 per cent in overrun. The result is a significant improvement of both traction and stability providing a substantially higher level of performance on winding routes, particularly on the race track.

Yet a further advantage is the more stable load change behavior. And at the same time the mechanical limited-slip differential, through its particular function, interacts perfectly with the electronic ABD Automatic Brake Differential for optimum traction control, the locking action delaying the tendency of one wheel to spin on a road surface slippery only on one side.

Porsche Active Suspension Management or PASM for short is available as an option on both models. At the touch of a button PASM changes damper forces and thus offers the ideal

combination of both a sporting and comfortable as well as a sporting and dynamic suspension, the latter proving its qualities particularly on the race track. Superior brake system with optional ceramic brakes Cross-drilled and inner-vented brake disks ensure excellent deceleration and stopping power on both models in the Boxster range. At the front brake energy is conveyed to the brake disks now measuring 318 mm or 12.51” in diameter and 28 mm or 1.10” across by fourpiston aluminum monobloc fixed calipers.

At the rear the Boxster comes with 20-millimeter (0.79”), the Boxster S with 24-millimeter (0.94”) thick brake disks, in each case measuring 299 millimeters or 11.77” in diameter for optimum stopping power and again interacting with four-piston aluminum monobloc fixed calipers.

Porsche Ceramic Composite Brakes (PCCB) available as an option on the Boxster S open up a new dimension in brake technology and performance in the roadster segment. This very special package of ceramic disks measuring 350 millimeters or 13.78” in diameter on all four wheels as well as special brake pads features yellow-painted six-piston aluminum fixed calipers at the front and four-piston aluminum fixed calipers at the rear, offering truly supreme and, in particular, consistent stopping power and deceleration and therefore ensuring very short stopping distances even under extreme conditions.

Comprehensive restraint system with head airbags

Featuring head airbags in an open car, the Boxster sets the standard also in terms of passive safety. The airbags protect the cars’ occupants in a side-on collision as an additional safety factor supplementing the side impact protection in the doors, by inflating out of the sills beneath the side windows within fractions of a second.

This effect is supplemented by thorax airbags inflated on the outer section of the seat backrests.

Together with the two full-size frontal airbags operating in two stages as well as belt latch tensioners and belt force limiters, the Porsche roadster offers a very high standard of allround passive safety.

Sophisticated interior with new PCM

Both the Boxster and the Boxster S come as standard with Porsche’s CDR-30 audio system featuring an easy-to-read five-inch monochromatic display. The CD player integrated in this system also plays music in the MP3 format. Porsche’s new PCM Communication Management now even more efficient, versatile and a lot easier to use is available as an option, serving as the central control unit for all audio, communication and navigation features in the car.

The highlight of PCM is the new control monitor with its highly advanced touchscreen. Measuring 6.5 inches, this screen is significantly larger than the 5.8-inch unit on the former model. At the same time the number of control keys has been halved to just 16, again in the interest of extra convenience.

In conjunction with the optionally available universal audio interface, PCM is now also able to control external audio sources such as an iPod® or a USB stick. Further options on the PCM unit are Porsche’s new voice entry and the electronic logbook. Yet another new feature is the Porsche Sound Package Plus complete with a radio, CD player and seven loudspeakers available as an option, just like the BOSE® Surround Sound System with eleven loudspeakers and a seven-channel digital amplifier naturally geared to the car as well as various telephone connection options.

In combination with seat heating, the new Boxsters come as an option with seat ventilation on both the standard seats and the comfort seats in full or partial leather. Particularly in the warm season, active seat ventilation ensures a pleasantly comfortable and dry climate on the seat surface ventilated at exactly the right points where the occupant is in close touch with the seat. The driver and passenger are able to activate seat ventilation together with the seat heating, reliably removing moisture on the surface and ensuring a pleasant temperature at the same time.

More Power on Less Fuel

The Porsche Boxster is continuing to build up its lead as the role model in the segment of open two-seater sports cars. Already a lightweight with lots of power and superior fuel efficiency, the second generation of Porsche’s mid-engined roadster is now even more athletic in its performance and more modest in its fuel consumption. The highlight of the new model is the new six-cylinder boxer engines developed as completely new power units from the ground up, displacing 2.9 litres in the Boxster and 3.4 litres in the Boxster S.

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 255 bhp (188 kW) at 6400 rpm, up by 10 horsepower over the previous model with its 2.7 litres. Maximum torque is up by 17 Nm to 290 Nm or 214 lb-ft delivered consistently between 4400 and 6000 rpm.

Featuring Direct Fuel Injection (DFI), the six-cylinder in the Boxster S offers 15 bhp more than before, now developing 310 hp (228 kW) also at 6400 rpm. Maximum torque of 360 Nm or 265 lb-ft 20 Newton-metres more than before comes between 4400 and 5500 rpm from this unique 3.4-litre.

Given this kind of power, the balance of output and weight on both Porsche roadsters so crucial to a dynamic sports car is improving once again. With its unladen weight of just 1335 kg or 2944 lb quite outstanding for an open sports car in this class, the Boxster offers a power-to-weight ratio of 5.2 kg per horsepower.

Weighing 1355 kg or 2988 lb unladen, in turn, the Boxster S is even more dynamic with a power-to-weight ratio of just 4.4 kg. In either case the driver benefits from maximum performance on minimum fuel, Porsche’s new roadsters achieving their most outstanding performance and fuel economy in combina tion with the new Porsche-Doppelkupplungsgetriebe (PDK), the Porsche Double-Clutch Gearbox.

Shifting gears very quickly without the slightest interruption of power, the Boxster S with PDK accelerates to 100 km/h in just 5.2 seconds, while the “basic” Boxster completes the same exercise in an equally impressive 5.8 seconds. Thanks to the optimum gearshift points and gear ratios with PDK, the Boxster S offers 16 per cent better fuel economy than the previous model with Tiptronic S, reducing fuel consumption to a mere 9.2 litres/100 kilometres (EU4), equal to 30.7 mpg imp. The “basic” model with PDK even remains below the nine-litre limit, average fuel consump tion of 8.9 litres/100 km or 31.7 mpg imp improving fuel economy by 11 per cent over the former model.

Equipped with the manual gearbox now featuring six gears as standard on both models, the Boxster S accelerates to 100 km/h in 5.3 seconds, the Boxster completing the same sprint in 5.9 seconds. And even with this manual gearbox, Porsche’s two-seaters consume even less fuel than before, with fuel consumption down to 9.2 litres/100 km (equal to 30.7 mpg imp) on the Boxster and 9.6 litres/100 km (equal to 29.4 mpg imp) on the S-model, in both cases to the EU4 standard.

Striking Appearance

The new roadsters come with their own unique profile standing out clearly from the Cayman. Seen from the front, the outer air intakes larger than on the former model clearly underline the self-confident appearance of the car as well as the superior performance of the new models.

Two of the crossbars integrated on either side in the outer air intake scoops are finished in body colour on the Boxster and come in black on the Boxster S, adding a new graphic effect at the front to make Porsche’s new roadster quite unmistakable at very first sight. LED positioning lights and foglamps now come in horizontal arrangement above the air intakes at the side. The direction indicators are integrated in the new halogen headlights reminiscent in their look of the Carrera GT.

A Lights Package featuring new bi-xenon headlights, dynamic bending lights, LED daytime driving lights, a headlight cleaning system and automatic headlight range control is available as an option on both versions of the Boxster. The daytime driving lights made up in each case of six LEDs positioned next to one another take the place of the foglamps whose func – tion is now performed without any drawbacks by the bi-xenon headlights offering optimised side illumination and coverage for maximum clarity and safety.

Seen from the side, you will immediately notice the new series production wheels in their unique design. The Boxster comes on 17-inch wheels in open five-spoke design, the S-model boasts Porsche’s new 18-inch Boxster S II wheels with five sporting and dynamic double spokes.

Through their design, both production wheels offer an impressive view of the brake system and help to vent the brakes. The double-arm exterior mirrors are likewise new in their design, offering even better visibility to the rear and fulfilling all future legal requirements. Optimised aerodynamics serves furthermore to keep the mirrors cleaner in wet weather. Matching the new front section, Porsche’s designers have created a brand-new rear panel design on the Porsche roadster.

The newly designed rear light clusters with all red lights in LED technology give the car particular character from behind. And at the same time the lights respond very quickly, serving to enhance the car’s active safety. Tapering out to a sharp point at the outside, the rear light clusters are stylishly and elegantly integrated into the new rear end of the car, the LED graphics providing truly striking light design.

Equally striking diffuser inserts surrounding the newly designed tailpipes in the middle round off the new rear end at the bottom. The Boxster comes with a single tailpipe, the Boxster S boasts twin tailpipes in a special look reminiscent of the 911 GT3.

Six-Cylinders New from the Ground Up

0-60 mph in 5,8 seconds and 162 mph and 0-60 mph in 5,2 seconds and 170 mph for the Boxtser S

The power units in the Boxster and Boxster S are entering the market as the latest repre sentatives of Porsche’s new generation of flat-six engines. Completely new from the ground up, the engines are lighter than before and have fewer individual components, while deve loping more power and performance and offering even greater efficiency than their predecessors. On the Boxster the 2.9-litre replaces the former 2.7-litre power unit, the increase in engine size being accompanied by an increase in compression from 11.3 to 1.5, serving to boost maximum output to 255 bhp (188 kW).

The engine on the Boxster S comes with the same 3.4 litres capacity as before. But benefiting from Porsche’s new Direct Fuel Injection (DFI) and the compression ratio up from 11.1 to 12.5, the engine now offers maximum output of no less than 310 bhp or 228 hp.

The greater efficiency of the new power units results to a large extent from the consistent enhancement of fundamental features and characteristics: Lower weight, reduced internal friction and fewer moving masses help to give both six-cylinders more power on less fuel. As a result, the new engines are about six kilos lighter than the former power units, a twopiece crankcase with integrated crankshaft bearings replacing the former four-piece block with its separate bearing supports. The big advantage, apart from lower weight, is the smaller number of individual components.

At the same time Porsche’s engineers have increased the thermal and mechanical robustness of the engine by changing the structure of the crankcase from an open- to a closeddeck

configuration. The cylinder liners so far standing freely around the cylinder gasket are now connected with the block through a cast-in coverplate encompassing the coolant ducts, giving the cylinders even greater stability in their shape and structure.

A further advantage is the reduction of oil consumption and, thanks to the lower level of friction, a reduction of fuel consumption.

New engine mounts with additional crosswise stops and new mounting specifications serve additionally to enhance driving comfort and improve driving dynamics at the same time, with the engine integrated even more firmly into the car and thus reducing relative movement on the body itself.

The Boxster S: the First Boxster with Direct Fuel Injection

Introducing the 3.4-litre power unit featured in the new Boxster S, Porsche is hailing the advent of Direct Fuel Injection (DFI) in the mid-engined roadster segment. Porsche DFI operates on a homogeneous fuel/air mixture, spreading out air and fuel smoothly and consistently within the combustion chamber in the interest of optimum combustion at all times. So de – pending on engine load and speed, fuel is injected by DFI at a pressure of up to 120 bar directly into the combustion chamber.

The fundamental benefit is that contrary to conventional intake manifold injection, the fuel/air mixture is now formed directly in the combustion chamber itself. While in the case of indirect fuel injection fuel is partly atomised upfront of the closed intake valve, the advantage with Direct Fuel Injection is that fuel is not injected directly into the cylinders until the valve is open.

Positioned between the two intake valves, the injector is aimed directly at the two flows of air, thus avoiding the wall film loss inevitably suffered in the conventional process by fuel mist coming to rest on the walls of the intake manifold. The air and fuel are therefore mixed even better within the cylinder, ensuring a clean and

complete combustion process. The thermal energy required for evaporating the fuel within the combustion chamber is drawn from the combustion air and cooled down in the process.

This reduces the cylinder charge volume and allows the induction of additional air through the open intake valve, again improving the cylinder charge.

A further benefit is that the lower temperature reduces the knock effect, allowing a higher compression ratio: Versus the former model, the compression ratio on the 3.4-litre is 12.5:1, serving again to enhance the thermal efficiency of the engine for more power on less fuel.

Direct Fuel Injection has a positive effect not only on the engine’s efficiency, but also on the characteristic features of the Boxster S power unit, as the driver will feel right away: With fuel being injected fractions of a second prior to combustion, the engine responds even more smoothly and spontaneously to even the slightest movement of the gas pedal.

Exhaust Emissions Meeting Even the Strictest Standards

Both power units already fulfil the upcoming emission standards to EU5 in Europe and the ULEV standard in the USA. To ensure this particular quality, the 2.9-litre features a secondary air pump helping to burn fuel in the exhaust emissions when starting the engine cold and thus warming up the catalytic converters more quickly to their regular operating temperature.

The 3.4-litre offers a comparable effect by means of the high-pressure stratified charge process with the catalysts being heated up immediately thereafter. In the process dual fuel injection increases the temperature of the exhaust gas to heat up the catalysts as quickly as possible. The fuel/air mixture is ignited at a very late point, again serving to increase the temperature of the exhaust emissions and reduce the volume of emissions during the startup phase.

Ultimately the newly developed exhaust system with two pre-catalysts integrated in the mani folds near the engine as well as two main catalysts helps to clean the exhaust gases

as quickly and completely as possible.

VarioCam Plus for Superior Power on Less Fuel

Like their predecessors, the new power units feature Porsche’s proven VarioCam Plus camshaft adjustment with variable control timing on the intake side and valve lift control. These operations are performed by hydraulically controlled cup tappets on the intake side of the engine masterminded by two cams varying in size on the intake camshaft.

The big advantage of VarioCam Plus is the combination of optimum output and torque with enhanced fuel economy, emission management and running smoothness. In combination with Porsche’s new Direct Fuel Injection this offers an ideal symbiosis increasing engine output and torque and reducing fuel consumption at the same time.

To further enhance the spontaneous and direct response of the engine, its efficiency and fast-revving running characteristics, the engineers in Weissach have redesigned the entire valve train. In their diameter, the shift tappets for the intake valves are down from 33 to 31 millimetres (1.22 1.20”), the tappets on the exhaust valves from 33 to 28 millimetres (1.22 1.10”).

Through these smaller dimensions and the lower weight of the fast-moving tappets, mass inertia is reduced accordingly and engine speed is increased. As a result, maximum permissible engine speed is now 7500 rpm, with both power units developing their maximum output at 6400 rpm.

On-Demand Oil Pump and Separate Cooling Pump

A further step to enhance the efficiency of Porsche’s new engines was to optimise the oil supply and extraction system, with the engineers focusing, first, on a secure oil supply also under even higher lateral and longitudinal acceleration. The second point was to further reduce frictional and drive losses within the system.

To reach these objectives, the oil circuit on the new engines follows the principle of integrated dry sump lubrication, made up of an oil pump with four intake stages and a pressure stage now fully controlled for the first time.

Engine management adjusts the flow of oil to current requirements at all times, thus reducing the power required to run the oil pump and, accordingly, the load acting on the engine. Clearly, this also helps to reduce fuel consumption. For the first time the coolant pump on Porsche’s new Boxer engines is fitted outside of the crankcase, allowing flexible adjustment of pump dimensions and reducing the cost of service and repair when necessary.

As a result, the maximum volume flow developed by the new coolant pump in accordance with the higher power of the engine and to ensure an adequate engine cooling effect at all times is up by approximately 20 per cent.

New, Variable Intake System

Both power units come with a new intake system incorporating the resonance and distri butor pipe between the right- and left-hand intake distributor. One of the new features is the newly designed centre section between the right- and left-hand intake distributor. Originally fitted as separate units, the resonance and distributor pipes have now been integrated to form one common component.

Reflecting the shape of the centre section now oval in its form, the resonance and distributor pipe flap are semi-oval in their geometry. The switching resonance flap serves to adjust air oscillation in the intake system to the respective speed of the engine, ensuring high torque at low speeds, an even smoother torque curve, as well as high maximum output. The two-chamber distributor tube with its switching flap likewise improves engine torque at low engine speeds.

The intake distributors on the two rows of cylinders are tailored in their dimensions to the specific characteristics of the two power units, thus coming in different geometry.

Another new feature is the re-configured resonance chamber in the upper section of the intake distributor. This function new on the “basic” engine serves to dampen acoustically unpleasant resonance noise at high engine speeds. Together with the newly developed exhaust system, the sound pattern of the engine has therefore been re-composed, now offering even greater brilliance and an even more dynamic touch.

Accelerating Faster, Saving Fuel: the Porsche-Doppelkupplungsgetriebe (PDK)

The two new roadsters are available as an option for the first time with Porsche’s Doppel – kupplungsgetriebe or PDK for short, the Double-Clutch Gearbox with seven gears replacing the former Tiptronic S.

In principle PDK is made up of one manual gearbox separated into two individual transmission units and a hydraulic control unit. The “heart” of the transmission is formed by two interacting multiple-plate clutches running in an oil bath and hydraulically operated on one joint shaft.

One clutch is for the first gearbox unit incorporating the uneven gears and the reverse gear, the other clutch is for the second gearbox unit comprising the even gears. Through a number of pressure valves, the hydraulic control unit masterminds both the clutches and the shift cylinders activating the desired transmission ratio. The gears are shifted very fast, without the slightest jolt, and with no interruption of power or traction, the clutch on one gearbox unit opening up and the other clutch closing at the same time.

In selector lever position D this entire process takes place fully automatically, with maximum comfort and smoothness. Pressing the paddles on the steering wheel or simply tipping the selector lever, the driver may however also shift gears manually.

Porsche Boxster

In either case the process of engaging and disengaging the clutch does not require any action on the part of the driver. The big advantage is the gearshift up to 60 per cent faster than on a manual and converter automatic transmission, since the gears are already in mesh when the driver shifts from one gear to another. A further advantage is the reduction of weight on PDK, which, despite the addition of two further gears, is about 10 kg or 22 lb lighter than the former Tiptronic S transmission.

Porsche’s Doppelkupplungsgetriebe comes with seven forward gears and one reverse gear. Gears 1-6 feature a sporting transmission ratio, with the two models reaching top speed in sixth gear. With its long transmission ratio, seventh gear serves to provide an overdrive or economy function.

Shifting Gears on the Selector Lever or Directly on the Steering Wheel

The driver is able to operate the Doppelkupplungsgetriebe the same way as Tiptronic S in the past: Either by means of paddles on the newly designed PDK steering wheel or through

the likewise redesigned selector lever in the centre console.

The steering wheel in its sporting three-spoke design comes with two shift paddles in particularly ergonomic arrangement. Pressing the right- or left-hand paddle to the front, the driver shifts up, pulling the paddles towards him from behind, he shifts down. The PDK control display in the instrument cluster is likewise based on the proven Tiptronic S

concept enhanced to an even higher standard and supplemented by an easy-to-read numerical indicator showing the driver which gear is currently in mesh (1-7). The driving program

(P, R, N, D and M) currently in use, on the other hand, is presented by red LEDs next to the gearshift pattern.

Driving in Dynamic Style: the Sports Chrono Package and Sports Chrono Package Plus

In conjunction with the CDR-30 radio featured as standard, Porsche offers the Sports Chrono Package as a particular feature. And in combination with optional Porsche Communication Management (PCM), the driver also has the choice of the optional Sports Chrono Package Plus.

As before, both packages come with an analogue stopwatch on the instrument panel and a sports mode for the engine also serving to activate Porsche Stability Management (PSM) as

well as Porsche Active Suspension Management (PASM), where fitted, via the Sports Button. In combination with Porsche Communication Management (PCM), both models also come with a performance display in the instrument cluster and an individual memory.

A brand-new feature on both packages is the additional Sports Plus function on cars fitted with the Porsche-Doppelkupplungsgetriebe. Pressing the additional Sports Plus button, the driver is able to choose an uncompromising, highly dynamic gearshift program for optimum performance on the race track. A further feature offered by this program is Porsche Launch Control for optimum acceleration from a standstill: To set off like in motorsport, all the driver has to do is press down the brake pedal with his left foot and push the gas pedal all the way down with his right foot (kick-down).

This will rev up the engine to 6500 rpm. Then, once the driver takes his foot off the brake pedal, the car will set off with maximum acceleration, both roadsters thus reaching 100 km/h another 0.2 seconds faster, the Boxster S in 5.0, the Boxster in 5.6 seconds.

New: Six-Speed Manual Gearbox on Both Models

Both new roadsters come as standard with a manual six-speed gearbox. Based on the gearbox in the former models, the new transmission unit has been modified in its geometric mounting points and power uptake to the new engines. Now the “basic” Boxster also comes as standard with the six-speed manual gearbox replacing the former five-speed unit.

Porsche offers drivers of the Boxster and Boxster S with a manual gearbox important help in reducing fuel consumption by means of the gearshift point indicator housed in the rev

counter as a triangle to the right of the digital speedometer.

Depending on the gear in mesh, engine speed and the position of the gas pedal, the gearshift point indicator clearly tells the driver when to shift up, the instrument flashing on for the driver to shift up to the next higher gear in the interest of enhanced fuel economy. Clearly, the driver receives this recommendation only if the gear suggested is appropriate for maintaining the speed or process of acceleration chosen by the driver in advance.

Limited-Slip Differential as an Option

A limited-slip differential on the rear wheels is available for the new Boxsters in conjunction with both 18- and 19-inch rims. Locking action is 22 per cent under power and 27 per cent in overrun, thus significantly improving both traction and stability for significantly enhanced performance on winding roads, particularly on the track.

A further advantage is the even more stable load change behaviour. And last but certainly not least, the mechanical limited-slip differential, through its particular function, reduces electronic brake intervention (ABD) by PSM Porsche Stability Management, with the locking action reducing the tendency of a wheel to spin when running on a slippery surface at one side of the car.

Start-Off Assistant also with the Manual Gearbox

Both with the manual gearbox and Porsche’s new PDK, the two-seater Boxster now comes as standard with a Start-Off Assistant offering the driver even easier and smoother control

in everyday motoring and preventing the car from rolling forwards or backwards for about two seconds when setting off on a gradient by automatically holding and subsequently releasing the brakes after the driver lets go of the brake pedal.

The Start-Off Assistant therefore allows the driver to set off smoothly and comfortably on an uphill or downhill gradient without having to use the handbrake.

New audio and communication systems

Both the Boxster and the Cayman come as standard with the new CDR-30 CD radio boasting an easy-to-read five-inch monochromatic display and the ability to play MP3 CDs. New PCM Porsche Communication Management available as an option complete with hard disc navigation serves as the central control unit for all audio, communication and navigation features.

PCM is now even more versatile, efficient and a lot easier to use than before, standing out in particular through its control monitor enabling the driver to select specific functions simply by tipping the appropriate key and increased in size from 5.8 to 6.5 inches.

As an option PCM is available with highly convenient voice control and, in conjunction with the optional, universal audio interface, can now be used also to control external audio sources such as an iPod® or USB stick. Last but not least, Porsche’s new two-seaters are available as an option with seat ventilation combined with seat heating on both the standard seats and the comfort seats with full or partial leather.

Specifications

Specifications Porsche Boxster

Two-seater roadster; monocoque hot-galvanised lightweight steel body; soft roof with interior lining; aluminium hardtop optional; driver and passenger airbags operating in two stages; side and head airbags for the driver and passenger.

Aerodynamics:

Drag coefficient: Cd = 0.29; with PDK: Cd = 0.30

Frontal area. A = 1.97 sqm

Cd x A = 0.58; with PDK: Cd x A = 0.59

Water-cooled six-cylinder boxer engine; engine block and cylinder head made of aluminum; four overhead camshafts; four valves per cylinder; variable valve timing and valve stroke (VarioCam Plus); hydraulic valve play compensation; two-stage switching intake manifold; sequential multipoint fuel injection; integrated dry sump lubrication with on-demand oil pump; two three-way catalytic converters on each row of cylinders, each with two oxygen sensors; 10.0 liters (2.64 imp gals) engine oil; 23.4 liters (6.17 imp gals) coolant; electronic ignition with solid-state distributor (six ignition coils).

Bore: 89.0 mm (3.50”)

Stroke: 77.5 mm (3.05”)

Capacity: 2893 cc

Compression Ratio: 11.5:1

Engine Output: 188 kW (255 bhp) at 7200 rpm

Max Torque: 290 Nm (214 lb-ft) from 44006000 rpm

Output per Liter: 65.0 kW/88.1 bhp

Max Engine Speed: 7500 rpm

Fuel Grade: Premium plus

Electrical System: 12 V, 2100 W alternator, 60 Ah x 280 A battery; with PDK 70 Ah x 340 A

Power Transmission: Engine and transmission bolted to form one unit; double drive shafts leading to the rear wheels.

Gear ratios:

Porsche Boxster
Porsche Boxster
Porsche Boxster
Porsche Boxster
Porsche Boxster
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