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Porsche Cayman R review
Porsche alphabet stand by the letter R for very special sports cars: R for responsive and refined - but above all for democracy. New Porsche Cayman R 2011 combines all these features without compromise. The mid-engine coupe is lighter and more powerful than the Cayman S, and then faster and more efficiently, and was designed exclusively for driving dynamics. With its sports chassis adapted, offers a driving experience even more accurate than the Cayman S.
The main objective during the design of the Porsche Cayman R was two places further improve its performance, driving dynamics and agility through consistent weight reduction. In general, the weight of the vehicle Cayman R was reduced by 55 kg per DIN empty weight 1.295 kg compared to S. This means that engineers Porsche Cayman have been able to reduce the power to weight ratio of the standard coupe with manual transmission and 3.9 kg per hp and the PDK version is 4.0 kg per hp.
biggest savings were achieved through the use of lightweight components and accessories without cost. For example, the version of the series does not have air conditioning or the radio, resulting in weight of the vehicle in less than 15 kg. On the side of the body, in addition to 15 kg was saved through the use of aluminum doors, used in the 911 Turbo. Light sports bucket seats, not only improve the driver's side support when cornering, but also help to reduce weight even further with a saving of about 12 kg less than conventional seats used in S. The door trim and glove box Cayman reduced without opening the door handle, eliminating the cap on the dashboard and cup holders, and a wide range of minor measures complete the lightweight package. As for the 911 and Boxster RS Spyder GT3/GT3, optional lithium-ion lightweight construction is also available. In addition, the top model of mid-engine coupe is equipped with the lightest 19-inch wheels that offer all the Porsches. The 10 rays are so elegantly designed - but still very strong - the complete set of frame weighs only 40 kg.
The purpose of the R and the Porsche Cayman purist character can be seen at first sight. The silhouette of the extended body, was lowered by 20 mm compared to the Cayman S, in combination with the fixed rear spoiler and distinctive high-quality silver-painted wheels and various sports emphasis at home and abroad ensures an individual aspect. The outside mirrors with the letters "PORSCHE" on the side, the side air intakes and rear spoiler at the top - as opposed to black or silver, depending on exterior color - black frame as well as the headlights inspired by the design of Porsche cars racing classic.
It is this word "Porsche" has been the hallmark of the first Porsche with the designation "R", R 911 of 1967. And 'designed to use the sport of racing in a small series of 19 cars for a small circle of top drivers and private, of course, for the enterprise. The "R" was a prototype based on a power series Coupe 210 Carrera 6 engine and, thanks to its plastic components and accessories for many very poor, weighed only 830 kg. AB 911 has proven its stability and speed in 84 hours "Marathon de la Route" at the Nürburgring in 1967, where he used the Porsche racing as a test of resistance to accept a new set of components: Vic Elford, Hans Herrmann and Jochen Neerpasch has won a £ 911 fitted with the new gearbox Sportomatic. The accumulated achievements. He entered the factory, the 911 R was also a winner during the "Tour de France", directed by Gerard Larrousse in 1969.
Snappy six-cylinder engine with more power
The search engine Porsche Cayman is not only putting out 10 hp more than the 3.4-liter engine of the Cayman S is the same size, is also much more spontaneous. The main reason for the increase in power is the exhaust system has changed with his pipe and a new head control engine changed. As for engines made to run, the engine of the Porsche Cayman R six-cylinder was built with the concept of high speed and produces its maximum power of 330 hp at 7,400 rpm, 100 rpm threshold before its rotation speed. This allows the driver to use the manual gearbox or the PDK transmission ratios even better and reduce lap times. To match this, the accelerator pedal curve control feature is designed with particular attention to the sport, so the Porsche Cayman R react spontaneously and very powerful commands for interacting with the combination of the driver, in particular the transmission double Porsche clutch (PDK).
The smooth engine, which was built following the principles of classic Porsches, the optimum conditions for use in targeted dynamic driving Porsche Cayman weight consistently R. Low, flat construction, low center of gravity, reducing internal friction and low moving mass ensure high performance with low fuel consumption simultaneously. This means that the Cayman R consumes only 9.7 liters per 100 km (3.43 Imp gallons per 100 miles.) - 0.1 liters less than the Cayman S. The body is divided in two and built the system using closed-deck construction. The suspension of the transverse engine with additional stops and identification of the sports suspension ensures a special comfort to high driving dynamics as the unit is fixed more firmly and thus allows movement in relation to the lower body.
Efficiency sports: direct fuel injection and VarioCam Plus
Porsche also uses direct injection of fuel into the new Cayman R is a 3.4-liter engine. The carburetor is based on the homogenous direct injection. The fuel is injected directly into the combustion chamber, it mixes with the induction of fresh air to allow combustion extremely uniform. The injector is located between the two intake valves and put their jets injected directly to the two air streams. This means that air and fuel are mixed at best cylinder - an important prerequisite for clean and complete combustion. The direct injection not only has a positive effect on efficiency, but also on the characteristics of the engine Cayman. The driver can hear directly, since the fuel is injected into a split second prior to combustion, the engine reacts very quickly to any movement of the accelerator pedal. The engine provides the torque required by the driver at all, just the next combustion cycle, immediately after the changes in the position of the accelerator pedal.
The Porsche Cayman R announces his intention to make the right driver from the beginning. This means that the engine reacts with the emphasis on speed agile with a distinct invaded as soon as you start the engine hot. The engine has been further improved with the motor and the internal measures taken for the sport overall impression. As an example, the modified engine control creates the well-known motor racing sound "mumbling" during the flight status of the accelerator.
The sports car engine breathing characteristics are controlled by VarioCam tested adjustment of the camshafts higher speeds developed by Porsche, with adjustments taking his side and the timing of transition of valve lift. The elevation adjustment is made by the valve-controlled hydraulic bucket tappets on the intake side of the engine, which are operated by both houses of various sizes on the intake camshaft.Thanks to VarioCam Plus, optimum power and torque can be achieved. In addition, this system improves fuel consumption, emissions, and the behavior of the refinement of the engine. In combination with direct fuel injection, this translates into increased power and torque, while a reduction in fuel consumption.
The demand-controlled oil pump also plays a role in terms of exemplary efficiency of Porsche engines. The oil circulation has been built on the principle of integrated dry sump lubrication and consists of an oil pump with suction and four stages of a controlled pressure. Engine management adjusts pump output current requirements at any time. The toothed wheel that can be hydraulically moved along its axis, which means that the width of the tooth and then capture the displacement volume of the set of geometric sprocket is changed, is used for this purpose. This means that the oil pump uses the energy no longer than necessary, and ensures at the same time that corresponds to the lubrication needs.
The resonance system with valve control input
A resonance intake system with a resonance tube and manifold distribution between left and right is responsible for regulating fresh air to the engine from 3.4 liters. The flap setting allows the controlled adjustment of the vibration of the air intake system for the corresponding speed, high torque at low engine speeds, a smoother torque curve and high power. The valve manifold with flow control also improves low-end torque.
Exemplary behavior problem
The engine meets the emission limit values in accordance with the Euro 5 standard and the ULEV '(Ultra Low Emission Vehicle), theUnited States
The Porsche Cayman R exhaust system is used according to the Cayman S, but has a head with a pipe of larger diameter results in over-choking exhaust fumes. In combination with the application of a new increase in engine power of 10 hp at higher rpm is obtained in this way. The flow of the exhaust pipe A double-double of the Cayman are black sports. The sports exhaust system, which is available on request, provides awesome audio experience. It 'also has a double-flow exhaust twins, but in this case, the surface is polished stainless steel with a nano-coating.
A six-speed manual
A six-speed manual transmission as standard on the Porsche Cayman R transmits engine power to the rear axle. The gear ratios are designed to support and sporting characteristics match perfectly to the engine, gear changes and to move forward to ensure the victory acceleration in combination with the engine at high speed. The short shifter is also available for particularly sporty-minded drivers.
Even more sporting and less expensive: the Porsche double-clutch (PDK)
The optional seven Porsche double-clutch transmission equipment (PDK) is also available for the Porsche Cayman R to further improve the dynamic and economic efficiency. In principle, the PDK transmission is a conventional manual transmission is divided into two divisions with a hydraulic control unit. The core of this transmission is formed by two multi-plate clutches arranged concentrically nested inside each other in an oil bath, which are hydraulically operated. A clutch is responsible for the transmission of the first division with odd-numbered gears and reverse, the clutch is more responsible for the transmission of the second fraction, with its gears evennumbered. The hydraulic active both claws and move the cylinder to move the gear ratios required by a number of pressure valves. Gear changes occur very quickly, smoothly and without interruption of current flow, because a free transmission clutch split in exactly the same time the other clutch engages. The great advantage is that the move is up to 60% faster than with manual or automatic transmission torque converter, because the gears were made during the change.
The strategy of movement provided by the PDK been completely revised for the radical, purist Porsche Cayman R. This leads to even more agility in the mid-engined sports car in all operational areas. The change in coordination adaptive sports training now takes place after only a few movements of the accelerator pedal, the system transmission electron reacts more quickly and more directly to the driver's request for more sportiness. This means that the vehicle retains its power in all gears, the acceleration curve is possible with much greater energy transfer to the wheels and the driver is connected directly to the engine and transmission through the accelerator pedal. Agility has also been improved braking maneuvers just before the curve. The change in the value of the brakes are held in a more spontaneous and high engine speeds, which means that before. Overall, the level of exchange rate between the neutral and the engine speed up the change immediately above has been adapted for high-speed motor.
If the switch is set to D, the gear change takes place fully automatically. In contrast to the other Cayman coupe, the turning points are much further along in each program so that the driver can make the most of the range of engine speeds. In conjunction with PDK Porsche Cayman R is equipped with a three-spoke sports steering wheel with steering wheel gearshift paddles, which is responsible for the right to move up and down the left hand to scale. Response time transmission in automatic mode and manual have been further reduced compared to other coupe Cayman so the driver can take direct control of power, which is transmitted from the wheels to the road. Operation of the clutch is no driver in any case. Gears 1-6 are sports facilities - the Porsche Cayman R has a top speed in sixth gear. The seventh gear has been designed with a higher gear at a lower rate of fuel consumption.
Sport Chrono Package with Launch Control Strategy and the race to change gear
Things get even better. In order to realize the potential new Cayman R is at its maximum, Porsche now offers the Sport Chrono and Sport Chrono Package Plus for the mid-engined sports car. The sport button in center console is used to enable the sport to both the engine and the Porsche Stability Management (PSM). If the vehicle is equipped with the Sport Plus button PDK, which has programs of dual-clutch transmission, gear change very fast. This means that a program of change uncompromising sport is on for best performance in the conduct of the circuit.
On top of this, the Sport Plus allows you to activate the Launch Control named best possible start to accelerate. To achieve this the start of the race, the driver must operate the brake pedal with his left foot and use the right foot to press the gas pedal right down (kickdown). This adjusts the engine speed of 6500 revolutions per minute. As soon as the driver takes his foot off the brake pedal, the vehicle starts with the maximum possible acceleration. The Porsche Cayman manages R from 0 to 100 km / h (62 mph) in just 4.7 seconds, in other words, 2 / 10 of a second faster than before.
The Sport Chrono Package Plus is used on models with optional PCM. It provides an additional display on the performance of the instrument panel and individual memories for cleaner light, and lock settings.
Adjustable sports suspension with no compromises
The extraordinary dynamic of the new Porsche Cayman R are connected directly to the chassis specially developed and adapted sports. The externally visible signs of this are that the new top model of the two-seat coupe is about 20 mm lower than the Cayman S. This reduction is associated with lower, stiffer springs and custom anti-roll bars front and rear. On top of this, the center of gravity has been lowered by more than two millimeters of the weight saving measures so that it is now 22 mm lower in general. The most difficult adjustment was also performed in buffers.Parents R is the Porsche Cayman have passed for a wide trace that is wider than four millimeters in front and two millimeters wider at the rear wheels thanks to the large change of the offset. The lightweight wheels reduce unsprung weight and further improve the precision driving.
The chassis design - both in connection with the distribution equaled the weight on the axles and the positioning of the engine and passengers between the axles - allows for extremely sporty driving with a greater driving stability and high lateral acceleration in the Porsche Cayman R. AR model of bulls with even faster and more accurately than other mid-engine coupe. Sway and pitch were almost completely eliminated. The relatively long wheelbase provides additional stabilization, especially in straight-ahead.
The front suspension includes a gate with his arms at the end and triangles. This design ensures extremely precise wheel guidance combined with a high degree of driving comfort. Sources of additional buffering effect in reducing shock strut angle of oscillation, in other words, the Coupé remains stable even at high lateral acceleration. The rear bumpers are supported by special spring seats in addition to damp transmission of impact noise and vibrations to the body and thus increase the driving comfort even more.
The largest negative curvature has also been defined on both axes to maximize the potential of directional stability. The advantages of driving dynamics of these chassis modifications are emphasized in an optimal way Porsche Cayman R. The extremely high stiffness and torsional rigidity of the Cayman body is the perfect base for maximum driving precision. Taking the sports purist design and R into account Cayman, Porsche is spending optional Porsche Active Suspension Management (PASM), electronic damping control.
Rear differential lock as standard
A rear axle differential lock is taken for granted in a sports car with the extremely sporty setting. It is designed for 22 percent tensile block value and 27 percent in propulsion. This means that both traction and stability have been improved significantly, resulting in a significant performance boost winding lanes, particularly in the circuits. A further advantage is the more stable load change. On top of this, the differential limitedslip alleviates mechanical drive electronic brake (ABD), Porsche Stability Management (PSM), through its operating principle, as wheelspin is late on roads with less grip on one side, for the blocking effect.
Steering rack and pinion precision
As with other cars of Porsche motor sports, steering pinion hydraulic steering commands transmitted rackand driver steering with variable R ratios Cayman as well. First, it makes excellent agility on winding roads as possible, driving stability and excellent second place at very high speeds is available. The steering ratio is higher in a central position, in other words, when the wheel spins lower direction.This means that the coupe behaves very stable, especially at high speeds. If the steering wheel is turned more than 30 °, the steering ratio becomes more direct.This results in much more agility on winding roads and more manageable, for example, hanging in tight corners or when parking. The wheel revolves around two and a half rotations from stop to stop.
High-performance brake system with optional ceramic discs
Disc brakes, internally ventilated and perforated to ensure excellent deceleration as standard. At the front, four-piston fixed aluminum calipers with a diameter of 318 mm (12.52 ") and a thickness of 28 mm (1.1") are used. At the rear, 24 mm (0.94 ") thick brake discs with a diameter of 299 mm (11.77") to ensure better deceleration, and these are also taken from four-piston calipers in aluminum monobloc fixed.
The Porsche Ceramic Composite Brake (PCCB) available as an option, it offers its own dimension braking. The package is composed of ceramic discs of 350 mm (13.78 ") diameter four-wheel, the brake pads and brake set up an extremely high and constant, especially in connection with the yellow-painted six-piston fixed aluminum calipers on 'front axle and four-piston aluminum calipers on the rear axle drive. This guarantees extremely short stopping distances even in very high.
PSM optimized response characteristics
The Porsche Stability Management (PSM) provides high security in its active phase of development of new defaults. PSM includes ABS (Anti-lock braking), ASR (traction control system), MSR (engine braking control), ABD (automatic brake differential) and the "pre-charge the braking system" and "Assistant braking" function. Pre-filling the brake system improves the readiness of the brakes and helps reduce braking distances in emergency situations. Once the accelerator is released quickly, which is characteristic for the future of emergency braking, a specific amount of pressure is built on the brake wheel PSM hydraulic control unit even before the brake pedal is pressed. This means that the brake pads are applied lightly to the brake discs. The response characteristics of the braking system are thus greatly improved the braking distance is reduced.
The Brake Assist is also responsible for the reduction of braking distance. Once the system detects an emergency braking - when the test speed of action and a strong foot on the brake pedal is bypassed - the PSM hydraulic unit actively delivers the brake pressure required for maximum deceleration. However, to avoid unwanted operation of the wizard braking while driving very happy, for example during the race circuit, the system is deactivated when the MSP was turned off (off PSM) or the optional Sport Chrono Sport Package has been pressed .
As a general rule, the PSM works to ensure greater stability in critical driving situations close to the limits of performance through selective brake ever. This means that the system can offer extremely high driving safety on, along with the agility of a Porsche car waiting, and thus greater driving pleasure. In order to enable handling in tight corners, MSP comes into operation after driving at low speeds up to 70 km / h (43.5 mph). The driver can also turn off the PSM so that it becomes active again only when braking. The reactivation of the system occurs only when the brake pedal is pressed with force, and once the limit has been exceeded ABS regulations in at least one front wheel. Sports driver can enjoy the freedom, therefore, remarkable, given that no intervention takes place in the PSM stop light, which allows the vehicle to be locked in a neutral corner.
High rigidity for increased accuracy and safety
The improved chassis, more powerful braking system more dynamic and the unit can be transformed into a high-performance driving, the common thread - the body - is taken as a result. The Porsche Cayman R has a huge head start in this case: its structure is based on the Boxster, which was built as an open sports car, and therefore provides a very high stability, even without a roof. The integration of a body fixed coupe roof has resulted in an extremely rigid and torsional stiffness, which is now set standards midengine sports coupe segment.
This rigidity is extremely high, on the one hand, the immediate effects on the accuracy of the chassis also important stimulus has absolutely no influence on the geometry of the structure of the body, which means that the frame geometry remains unchanged - the sports coupe seems to take literally on rails. On the other hand, the rigid body also means a high passive safety. The Porsche Cayman R satisfies all the rules in force in the relevant markets in relation to the passive safety of vehicles.Falls far below the limit values required by the legislature to the front, side and oblique rear impact and rollover.
Hood of the vehicle and aluminum doors
The lid of the luggage compartment on the front sports coupe has an aluminum shell.The Porsche Cayman is the result saves the R ports in more than 15 kg, because, in comparison with other Cayman models are made of aluminum. The wide opening rear doors with heated rear window, his great lightweight steel, fits seamlessly into the flow lines from the rear of the vehicle. A wiper for the rear is available as an option.
Safety first: six airbags as standard protection
Of course, the Porsche Cayman R provides a passive safety system even if all Porsche sports cars. A head airbags combined with a driver and passenger airbags provide excellent protection from side impacts on the full range chin longitudinal adjustment of seats. POSIP Porsche calls this combination, which stands for Porsche Side Impact Protection. The full-size airbags provide protection both against damage caused by impact with its front side 62 liters 122 liters ger driver and passenger side.
Optimized aerodynamic lift with even less
Stability and roadholding tracking play an important role in the field of security and stability in lateral sports car used for racing, especially at high speeds. For this reason, engineers redesigned the aerodynamics of the Porsche Cayman Tues R in detail and were able to raise considerably reduced values of both axes. The lift was reduced by about 15 percent on the front axle and 40 percent on the rear axle. This can be attributed to more pronounced spoiler lip front and fixed rear spoiler. It replaces the division automatically extending wing that is installed as standard in other models Cayman, and is based on a different principle aerodynamics.Optimized for the deflection blade cooling air to the wheel housing panels also optimize cooling of the brakes. The Porsche Cayman has an R value of 0.30 Cd is the six-speed manual gearbox and with the PDK.
Interior and equipment
The interior of the new Porsche Cayman R presents sport on functionality and is designed with particular attention to purism, ergonomics and authenticity. The interior color is mostly black, and is integrated with the components in the body color or accent color red or silver.
The accessories are concentrated primarily for reasons of weight. There is a storage compartment rather than a radio, pockets have been left out completely and the cup holder is only available on request. Instead of metal levers usually found on cars Porsche, the Cayman R is equipped with a pair of fabric panels in light to open the door. The monitoring dashboard instrument dials with black around his list of the results was the Porsche Cayman R. The center console and decorative molding around the panel switches are painted in the vehicle. The color black is the installation of the series with details accented in contrasting colors: the gear shift diagram, strips doors open and seat belts are colored bright red contrasting color or black depending on the outside, and are also available in silver as an option.
The Cayman R is equipped with lightweight sports seats bucket with a head office in Alcantara as standard. The headquarters building envelope is made of glass reinforced plastic and carbon fiber, and plays an important role in weight reduction to a level of about 12 kg compared to the type installed in offices Cayman S. The surface of the shell was completed in a visible optical carbon attractive.
Diversity: Options for individualizing
One can assume that the Porsche Cayman R offers each customer the possibility to adapt the two places with their individual needs. This is why almost all the program options are also available for Cayman's new R-type, and these vary from climate control through a full leather interior to the Bi-Xenon headlights with dynamic cornering lights and LED daytime running lights run . The sports seats can be ordered at no extra cost, extra-light alternative to standard sport bucket seats. The CDR-30 audio system can also be fitted at no extra cost upon request. It 'has a reading accuracy of 5-inch monochrome screen. The integrated CD also plays music in MP3 format.
Porsche Communication Management (PCM) with navigation module is optionally available. It 'used as a central controller for all the accessories in audio electronics and navigation. Its main feature is the touch screen of 6.5 inches. In addition, external audio sources, such as an iPod ® or USB stick can be controlled by the PCM with the optional universal audio interface. Instead of the standard CD / DVD single, integrated system of a six-fold CD / DVD that is easily within reach of the driver is available as an option in the PCM.
A Porsche Cayman Specifications
Displacement: 3436 cm3
Diameter: 97.0 mm (3.82 ")
Stroke: 77.5 mm (3.5 ")
Compression ratio: 12,5:1
Engine power: 243 kW (330 hp) at 7,400 rpm
Max torque: 370 Nm at 4750 rpm
Power per liter: 70.7 kW / liter (96.0 hp / liter)
Maximum speed: 7,500 rpm
Fuel type: Premium Plus
Dimensions
Length: 4,347 mm (171.14 ")
Width: 1801 mm (70.91 ")
Height: 1285 mm (50.59 ")
Wheelbase: 2,415 mm (95.08 ")
Lane width
Front: 1490 mm (58.66 ")
Rear: 1530 mm (60.24 ")
Volume of luggage
Front: 150 liters
Rear: 260 liters
Fuel tank capacity: 54 liters (11.88 gallons imp ..)
Unladen weight (DIN): 1.295 kg
Maximum allowable weight: 1.620 kg
Execution
Maximum speed: 282 km / h (175 mph)
0-100 km / h (0-62 mph) 5.0 s
0-200 km / h (0-124 mph): 17.2 s
Consumption (NEDC)
Urban 14.2 liters (19.9 mpg imp).
Suburban 7.1 liter (39.8 mpg imp).
Combined 9.7-liter (29.1 mpg imp).
CO2 emissions: 228 g / km
Problem Category: Euro 5
The main objective during the design of the Porsche Cayman R was two places further improve its performance, driving dynamics and agility through consistent weight reduction. In general, the weight of the vehicle Cayman R was reduced by 55 kg per DIN empty weight 1.295 kg compared to S. This means that engineers Porsche Cayman have been able to reduce the power to weight ratio of the standard coupe with manual transmission and 3.9 kg per hp and the PDK version is 4.0 kg per hp.
biggest savings were achieved through the use of lightweight components and accessories without cost. For example, the version of the series does not have air conditioning or the radio, resulting in weight of the vehicle in less than 15 kg. On the side of the body, in addition to 15 kg was saved through the use of aluminum doors, used in the 911 Turbo. Light sports bucket seats, not only improve the driver's side support when cornering, but also help to reduce weight even further with a saving of about 12 kg less than conventional seats used in S. The door trim and glove box Cayman reduced without opening the door handle, eliminating the cap on the dashboard and cup holders, and a wide range of minor measures complete the lightweight package. As for the 911 and Boxster RS Spyder GT3/GT3, optional lithium-ion lightweight construction is also available. In addition, the top model of mid-engine coupe is equipped with the lightest 19-inch wheels that offer all the Porsches. The 10 rays are so elegantly designed - but still very strong - the complete set of frame weighs only 40 kg.
The purpose of the R and the Porsche Cayman purist character can be seen at first sight. The silhouette of the extended body, was lowered by 20 mm compared to the Cayman S, in combination with the fixed rear spoiler and distinctive high-quality silver-painted wheels and various sports emphasis at home and abroad ensures an individual aspect. The outside mirrors with the letters "PORSCHE" on the side, the side air intakes and rear spoiler at the top - as opposed to black or silver, depending on exterior color - black frame as well as the headlights inspired by the design of Porsche cars racing classic.
It is this word "Porsche" has been the hallmark of the first Porsche with the designation "R", R 911 of 1967. And 'designed to use the sport of racing in a small series of 19 cars for a small circle of top drivers and private, of course, for the enterprise. The "R" was a prototype based on a power series Coupe 210 Carrera 6 engine and, thanks to its plastic components and accessories for many very poor, weighed only 830 kg. AB 911 has proven its stability and speed in 84 hours "Marathon de la Route" at the Nürburgring in 1967, where he used the Porsche racing as a test of resistance to accept a new set of components: Vic Elford, Hans Herrmann and Jochen Neerpasch has won a £ 911 fitted with the new gearbox Sportomatic. The accumulated achievements. He entered the factory, the 911 R was also a winner during the "Tour de France", directed by Gerard Larrousse in 1969.
Snappy six-cylinder engine with more power
The search engine Porsche Cayman is not only putting out 10 hp more than the 3.4-liter engine of the Cayman S is the same size, is also much more spontaneous. The main reason for the increase in power is the exhaust system has changed with his pipe and a new head control engine changed. As for engines made to run, the engine of the Porsche Cayman R six-cylinder was built with the concept of high speed and produces its maximum power of 330 hp at 7,400 rpm, 100 rpm threshold before its rotation speed. This allows the driver to use the manual gearbox or the PDK transmission ratios even better and reduce lap times. To match this, the accelerator pedal curve control feature is designed with particular attention to the sport, so the Porsche Cayman R react spontaneously and very powerful commands for interacting with the combination of the driver, in particular the transmission double Porsche clutch (PDK).
The smooth engine, which was built following the principles of classic Porsches, the optimum conditions for use in targeted dynamic driving Porsche Cayman weight consistently R. Low, flat construction, low center of gravity, reducing internal friction and low moving mass ensure high performance with low fuel consumption simultaneously. This means that the Cayman R consumes only 9.7 liters per 100 km (3.43 Imp gallons per 100 miles.) - 0.1 liters less than the Cayman S. The body is divided in two and built the system using closed-deck construction. The suspension of the transverse engine with additional stops and identification of the sports suspension ensures a special comfort to high driving dynamics as the unit is fixed more firmly and thus allows movement in relation to the lower body.
Efficiency sports: direct fuel injection and VarioCam Plus
Porsche also uses direct injection of fuel into the new Cayman R is a 3.4-liter engine. The carburetor is based on the homogenous direct injection. The fuel is injected directly into the combustion chamber, it mixes with the induction of fresh air to allow combustion extremely uniform. The injector is located between the two intake valves and put their jets injected directly to the two air streams. This means that air and fuel are mixed at best cylinder - an important prerequisite for clean and complete combustion. The direct injection not only has a positive effect on efficiency, but also on the characteristics of the engine Cayman. The driver can hear directly, since the fuel is injected into a split second prior to combustion, the engine reacts very quickly to any movement of the accelerator pedal. The engine provides the torque required by the driver at all, just the next combustion cycle, immediately after the changes in the position of the accelerator pedal.
The Porsche Cayman R announces his intention to make the right driver from the beginning. This means that the engine reacts with the emphasis on speed agile with a distinct invaded as soon as you start the engine hot. The engine has been further improved with the motor and the internal measures taken for the sport overall impression. As an example, the modified engine control creates the well-known motor racing sound "mumbling" during the flight status of the accelerator.
The sports car engine breathing characteristics are controlled by VarioCam tested adjustment of the camshafts higher speeds developed by Porsche, with adjustments taking his side and the timing of transition of valve lift. The elevation adjustment is made by the valve-controlled hydraulic bucket tappets on the intake side of the engine, which are operated by both houses of various sizes on the intake camshaft.Thanks to VarioCam Plus, optimum power and torque can be achieved. In addition, this system improves fuel consumption, emissions, and the behavior of the refinement of the engine. In combination with direct fuel injection, this translates into increased power and torque, while a reduction in fuel consumption.
The demand-controlled oil pump also plays a role in terms of exemplary efficiency of Porsche engines. The oil circulation has been built on the principle of integrated dry sump lubrication and consists of an oil pump with suction and four stages of a controlled pressure. Engine management adjusts pump output current requirements at any time. The toothed wheel that can be hydraulically moved along its axis, which means that the width of the tooth and then capture the displacement volume of the set of geometric sprocket is changed, is used for this purpose. This means that the oil pump uses the energy no longer than necessary, and ensures at the same time that corresponds to the lubrication needs.
The resonance system with valve control input
A resonance intake system with a resonance tube and manifold distribution between left and right is responsible for regulating fresh air to the engine from 3.4 liters. The flap setting allows the controlled adjustment of the vibration of the air intake system for the corresponding speed, high torque at low engine speeds, a smoother torque curve and high power. The valve manifold with flow control also improves low-end torque.
Exemplary behavior problem
The engine meets the emission limit values in accordance with the Euro 5 standard and the ULEV '(Ultra Low Emission Vehicle), the
The Porsche Cayman R exhaust system is used according to the Cayman S, but has a head with a pipe of larger diameter results in over-choking exhaust fumes. In combination with the application of a new increase in engine power of 10 hp at higher rpm is obtained in this way. The flow of the exhaust pipe A double-double of the Cayman are black sports. The sports exhaust system, which is available on request, provides awesome audio experience. It 'also has a double-flow exhaust twins, but in this case, the surface is polished stainless steel with a nano-coating.
A six-speed manual
A six-speed manual transmission as standard on the Porsche Cayman R transmits engine power to the rear axle. The gear ratios are designed to support and sporting characteristics match perfectly to the engine, gear changes and to move forward to ensure the victory acceleration in combination with the engine at high speed. The short shifter is also available for particularly sporty-minded drivers.
Even more sporting and less expensive: the Porsche double-clutch (PDK)
The optional seven Porsche double-clutch transmission equipment (PDK) is also available for the Porsche Cayman R to further improve the dynamic and economic efficiency. In principle, the PDK transmission is a conventional manual transmission is divided into two divisions with a hydraulic control unit. The core of this transmission is formed by two multi-plate clutches arranged concentrically nested inside each other in an oil bath, which are hydraulically operated. A clutch is responsible for the transmission of the first division with odd-numbered gears and reverse, the clutch is more responsible for the transmission of the second fraction, with its gears evennumbered. The hydraulic active both claws and move the cylinder to move the gear ratios required by a number of pressure valves. Gear changes occur very quickly, smoothly and without interruption of current flow, because a free transmission clutch split in exactly the same time the other clutch engages. The great advantage is that the move is up to 60% faster than with manual or automatic transmission torque converter, because the gears were made during the change.
The strategy of movement provided by the PDK been completely revised for the radical, purist Porsche Cayman R. This leads to even more agility in the mid-engined sports car in all operational areas. The change in coordination adaptive sports training now takes place after only a few movements of the accelerator pedal, the system transmission electron reacts more quickly and more directly to the driver's request for more sportiness. This means that the vehicle retains its power in all gears, the acceleration curve is possible with much greater energy transfer to the wheels and the driver is connected directly to the engine and transmission through the accelerator pedal. Agility has also been improved braking maneuvers just before the curve. The change in the value of the brakes are held in a more spontaneous and high engine speeds, which means that before. Overall, the level of exchange rate between the neutral and the engine speed up the change immediately above has been adapted for high-speed motor.
If the switch is set to D, the gear change takes place fully automatically. In contrast to the other Cayman coupe, the turning points are much further along in each program so that the driver can make the most of the range of engine speeds. In conjunction with PDK Porsche Cayman R is equipped with a three-spoke sports steering wheel with steering wheel gearshift paddles, which is responsible for the right to move up and down the left hand to scale. Response time transmission in automatic mode and manual have been further reduced compared to other coupe Cayman so the driver can take direct control of power, which is transmitted from the wheels to the road. Operation of the clutch is no driver in any case. Gears 1-6 are sports facilities - the Porsche Cayman R has a top speed in sixth gear. The seventh gear has been designed with a higher gear at a lower rate of fuel consumption.
Sport Chrono Package with Launch Control Strategy and the race to change gear
Things get even better. In order to realize the potential new Cayman R is at its maximum, Porsche now offers the Sport Chrono and Sport Chrono Package Plus for the mid-engined sports car. The sport button in center console is used to enable the sport to both the engine and the Porsche Stability Management (PSM). If the vehicle is equipped with the Sport Plus button PDK, which has programs of dual-clutch transmission, gear change very fast. This means that a program of change uncompromising sport is on for best performance in the conduct of the circuit.
On top of this, the Sport Plus allows you to activate the Launch Control named best possible start to accelerate. To achieve this the start of the race, the driver must operate the brake pedal with his left foot and use the right foot to press the gas pedal right down (kickdown). This adjusts the engine speed of 6500 revolutions per minute. As soon as the driver takes his foot off the brake pedal, the vehicle starts with the maximum possible acceleration. The Porsche Cayman manages R from 0 to 100 km / h (62 mph) in just 4.7 seconds, in other words, 2 / 10 of a second faster than before.
The Sport Chrono Package Plus is used on models with optional PCM. It provides an additional display on the performance of the instrument panel and individual memories for cleaner light, and lock settings.
Adjustable sports suspension with no compromises
The extraordinary dynamic of the new Porsche Cayman R are connected directly to the chassis specially developed and adapted sports. The externally visible signs of this are that the new top model of the two-seat coupe is about 20 mm lower than the Cayman S. This reduction is associated with lower, stiffer springs and custom anti-roll bars front and rear. On top of this, the center of gravity has been lowered by more than two millimeters of the weight saving measures so that it is now 22 mm lower in general. The most difficult adjustment was also performed in buffers.Parents R is the Porsche Cayman have passed for a wide trace that is wider than four millimeters in front and two millimeters wider at the rear wheels thanks to the large change of the offset. The lightweight wheels reduce unsprung weight and further improve the precision driving.
The chassis design - both in connection with the distribution equaled the weight on the axles and the positioning of the engine and passengers between the axles - allows for extremely sporty driving with a greater driving stability and high lateral acceleration in the Porsche Cayman R. AR model of bulls with even faster and more accurately than other mid-engine coupe. Sway and pitch were almost completely eliminated. The relatively long wheelbase provides additional stabilization, especially in straight-ahead.
The front suspension includes a gate with his arms at the end and triangles. This design ensures extremely precise wheel guidance combined with a high degree of driving comfort. Sources of additional buffering effect in reducing shock strut angle of oscillation, in other words, the Coupé remains stable even at high lateral acceleration. The rear bumpers are supported by special spring seats in addition to damp transmission of impact noise and vibrations to the body and thus increase the driving comfort even more.
The largest negative curvature has also been defined on both axes to maximize the potential of directional stability. The advantages of driving dynamics of these chassis modifications are emphasized in an optimal way Porsche Cayman R. The extremely high stiffness and torsional rigidity of the Cayman body is the perfect base for maximum driving precision. Taking the sports purist design and R into account Cayman, Porsche is spending optional Porsche Active Suspension Management (PASM), electronic damping control.
Rear differential lock as standard
A rear axle differential lock is taken for granted in a sports car with the extremely sporty setting. It is designed for 22 percent tensile block value and 27 percent in propulsion. This means that both traction and stability have been improved significantly, resulting in a significant performance boost winding lanes, particularly in the circuits. A further advantage is the more stable load change. On top of this, the differential limitedslip alleviates mechanical drive electronic brake (ABD), Porsche Stability Management (PSM), through its operating principle, as wheelspin is late on roads with less grip on one side, for the blocking effect.
Steering rack and pinion precision
As with other cars of Porsche motor sports, steering pinion hydraulic steering commands transmitted rackand driver steering with variable R ratios Cayman as well. First, it makes excellent agility on winding roads as possible, driving stability and excellent second place at very high speeds is available. The steering ratio is higher in a central position, in other words, when the wheel spins lower direction.This means that the coupe behaves very stable, especially at high speeds. If the steering wheel is turned more than 30 °, the steering ratio becomes more direct.This results in much more agility on winding roads and more manageable, for example, hanging in tight corners or when parking. The wheel revolves around two and a half rotations from stop to stop.
High-performance brake system with optional ceramic discs
Disc brakes, internally ventilated and perforated to ensure excellent deceleration as standard. At the front, four-piston fixed aluminum calipers with a diameter of 318 mm (12.52 ") and a thickness of 28 mm (1.1") are used. At the rear, 24 mm (0.94 ") thick brake discs with a diameter of 299 mm (11.77") to ensure better deceleration, and these are also taken from four-piston calipers in aluminum monobloc fixed.
The Porsche Ceramic Composite Brake (PCCB) available as an option, it offers its own dimension braking. The package is composed of ceramic discs of 350 mm (13.78 ") diameter four-wheel, the brake pads and brake set up an extremely high and constant, especially in connection with the yellow-painted six-piston fixed aluminum calipers on 'front axle and four-piston aluminum calipers on the rear axle drive. This guarantees extremely short stopping distances even in very high.
PSM optimized response characteristics
The Porsche Stability Management (PSM) provides high security in its active phase of development of new defaults. PSM includes ABS (Anti-lock braking), ASR (traction control system), MSR (engine braking control), ABD (automatic brake differential) and the "pre-charge the braking system" and "Assistant braking" function. Pre-filling the brake system improves the readiness of the brakes and helps reduce braking distances in emergency situations. Once the accelerator is released quickly, which is characteristic for the future of emergency braking, a specific amount of pressure is built on the brake wheel PSM hydraulic control unit even before the brake pedal is pressed. This means that the brake pads are applied lightly to the brake discs. The response characteristics of the braking system are thus greatly improved the braking distance is reduced.
The Brake Assist is also responsible for the reduction of braking distance. Once the system detects an emergency braking - when the test speed of action and a strong foot on the brake pedal is bypassed - the PSM hydraulic unit actively delivers the brake pressure required for maximum deceleration. However, to avoid unwanted operation of the wizard braking while driving very happy, for example during the race circuit, the system is deactivated when the MSP was turned off (off PSM) or the optional Sport Chrono Sport Package has been pressed .
As a general rule, the PSM works to ensure greater stability in critical driving situations close to the limits of performance through selective brake ever. This means that the system can offer extremely high driving safety on, along with the agility of a Porsche car waiting, and thus greater driving pleasure. In order to enable handling in tight corners, MSP comes into operation after driving at low speeds up to 70 km / h (43.5 mph). The driver can also turn off the PSM so that it becomes active again only when braking. The reactivation of the system occurs only when the brake pedal is pressed with force, and once the limit has been exceeded ABS regulations in at least one front wheel. Sports driver can enjoy the freedom, therefore, remarkable, given that no intervention takes place in the PSM stop light, which allows the vehicle to be locked in a neutral corner.
High rigidity for increased accuracy and safety
The improved chassis, more powerful braking system more dynamic and the unit can be transformed into a high-performance driving, the common thread - the body - is taken as a result. The Porsche Cayman R has a huge head start in this case: its structure is based on the Boxster, which was built as an open sports car, and therefore provides a very high stability, even without a roof. The integration of a body fixed coupe roof has resulted in an extremely rigid and torsional stiffness, which is now set standards midengine sports coupe segment.
This rigidity is extremely high, on the one hand, the immediate effects on the accuracy of the chassis also important stimulus has absolutely no influence on the geometry of the structure of the body, which means that the frame geometry remains unchanged - the sports coupe seems to take literally on rails. On the other hand, the rigid body also means a high passive safety. The Porsche Cayman R satisfies all the rules in force in the relevant markets in relation to the passive safety of vehicles.Falls far below the limit values required by the legislature to the front, side and oblique rear impact and rollover.
Hood of the vehicle and aluminum doors
The lid of the luggage compartment on the front sports coupe has an aluminum shell.The Porsche Cayman is the result saves the R ports in more than 15 kg, because, in comparison with other Cayman models are made of aluminum. The wide opening rear doors with heated rear window, his great lightweight steel, fits seamlessly into the flow lines from the rear of the vehicle. A wiper for the rear is available as an option.
Safety first: six airbags as standard protection
Of course, the Porsche Cayman R provides a passive safety system even if all Porsche sports cars. A head airbags combined with a driver and passenger airbags provide excellent protection from side impacts on the full range chin longitudinal adjustment of seats. POSIP Porsche calls this combination, which stands for Porsche Side Impact Protection. The full-size airbags provide protection both against damage caused by impact with its front side 62 liters 122 liters ger driver and passenger side.
Optimized aerodynamic lift with even less
Stability and roadholding tracking play an important role in the field of security and stability in lateral sports car used for racing, especially at high speeds. For this reason, engineers redesigned the aerodynamics of the Porsche Cayman Tues R in detail and were able to raise considerably reduced values of both axes. The lift was reduced by about 15 percent on the front axle and 40 percent on the rear axle. This can be attributed to more pronounced spoiler lip front and fixed rear spoiler. It replaces the division automatically extending wing that is installed as standard in other models Cayman, and is based on a different principle aerodynamics.Optimized for the deflection blade cooling air to the wheel housing panels also optimize cooling of the brakes. The Porsche Cayman has an R value of 0.30 Cd is the six-speed manual gearbox and with the PDK.
Interior and equipment
The interior of the new Porsche Cayman R presents sport on functionality and is designed with particular attention to purism, ergonomics and authenticity. The interior color is mostly black, and is integrated with the components in the body color or accent color red or silver.
The accessories are concentrated primarily for reasons of weight. There is a storage compartment rather than a radio, pockets have been left out completely and the cup holder is only available on request. Instead of metal levers usually found on cars Porsche, the Cayman R is equipped with a pair of fabric panels in light to open the door. The monitoring dashboard instrument dials with black around his list of the results was the Porsche Cayman R. The center console and decorative molding around the panel switches are painted in the vehicle. The color black is the installation of the series with details accented in contrasting colors: the gear shift diagram, strips doors open and seat belts are colored bright red contrasting color or black depending on the outside, and are also available in silver as an option.
The Cayman R is equipped with lightweight sports seats bucket with a head office in Alcantara as standard. The headquarters building envelope is made of glass reinforced plastic and carbon fiber, and plays an important role in weight reduction to a level of about 12 kg compared to the type installed in offices Cayman S. The surface of the shell was completed in a visible optical carbon attractive.
Diversity: Options for individualizing
One can assume that the Porsche Cayman R offers each customer the possibility to adapt the two places with their individual needs. This is why almost all the program options are also available for Cayman's new R-type, and these vary from climate control through a full leather interior to the Bi-Xenon headlights with dynamic cornering lights and LED daytime running lights run . The sports seats can be ordered at no extra cost, extra-light alternative to standard sport bucket seats. The CDR-30 audio system can also be fitted at no extra cost upon request. It 'has a reading accuracy of 5-inch monochrome screen. The integrated CD also plays music in MP3 format.
Porsche Communication Management (PCM) with navigation module is optionally available. It 'used as a central controller for all the accessories in audio electronics and navigation. Its main feature is the touch screen of 6.5 inches. In addition, external audio sources, such as an iPod ® or USB stick can be controlled by the PCM with the optional universal audio interface. Instead of the standard CD / DVD single, integrated system of a six-fold CD / DVD that is easily within reach of the driver is available as an option in the PCM.
A Porsche Cayman Specifications
Displacement: 3436 cm3
Diameter: 97.0 mm (3.82 ")
Stroke: 77.5 mm (3.5 ")
Compression ratio: 12,5:1
Engine power: 243 kW (330 hp) at 7,400 rpm
Max torque: 370 Nm at 4750 rpm
Power per liter: 70.7 kW / liter (96.0 hp / liter)
Maximum speed: 7,500 rpm
Fuel type: Premium Plus
Dimensions
Length: 4,347 mm (171.14 ")
Width: 1801 mm (70.91 ")
Height: 1285 mm (50.59 ")
Wheelbase: 2,415 mm (95.08 ")
Lane width
Front: 1490 mm (58.66 ")
Rear: 1530 mm (60.24 ")
Volume of luggage
Front: 150 liters
Rear: 260 liters
Fuel tank capacity: 54 liters (11.88 gallons imp ..)
Unladen weight (DIN): 1.295 kg
Maximum allowable weight: 1.620 kg
Execution
Maximum speed: 282 km / h (175 mph)
0-100 km / h (0-62 mph) 5.0 s
0-200 km / h (0-124 mph): 17.2 s
Consumption (NEDC)
Urban 14.2 liters (19.9 mpg imp).
Suburban 7.1 liter (39.8 mpg imp).
Combined 9.7-liter (29.1 mpg imp).
CO2 emissions: 228 g / km
Problem Category: Euro 5
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