Porsche Boxster (2001)

17 Oct 2014 | Author: | Comments Off on Porsche Boxster (2001)

A retractable rear located between the taillights at speeds above 75 mph (120 per hour, reducing axle by 30 percent. The spoiler retracts speed falls below 50 mph (80 at which point it would no effect.

A smooth underbody and various underbody panels airflow under the car for reduced and lift. In front and rear, flexible spoiler lips at the of the wheel arches also drag and lift.

Ducts in rear quarter panel separate functions. The left duct supplies air to the induction Warm air from the engine escapes through the right-side aided by a fan when engine and temperatures dictate.


The Porsche Boxster shares a layout with classic road/race cars. However, – not nostalgia – the engineering. Engineers describe the benefits of a mid-engine layout in of a low moment of inertia about the vertical axis.

Translation: the you concentrate a car’s mass its center, the quicker the response to inputs. In the Porsche Boxster, layout yields 46/54-percent weight distribution, a key contributing in the car’s outstanding response.

Porsche Boxster

The Porsche design itself contributes to handling. A horizontally opposed – called boxer the piston movement resembles boxers throwing punches concentrates an engine’s mass in a that’s lower and shorter a comparable-displacement inline-6 or V-6 engine.

The packaging of a boxer engine another space benefit. between the rear suspension and the the Porsche Boxster‘s sits low enough to provide a area above it for the lowered With the roof raised, the above the engine cover can the car’s front and rear compartments, each of which 4.5 cubic feet of carrying

The 16.5-gallon fuel tank behind the front luggage

To provide space for luggage and a radiator, Porsche uses two radiators, one in each front ahead of the wheels. Consequently, the radiators and their attendant lines also help distribution.

To perform any major technicians access the Porsche engine from underneath the A service tray in the rear compartment provides easy to the oil level dipstick and filling and the engine coolant fill In addition, an instrument panel displays oil level after refueling.

Zero-to-Sunshine in 12 Seconds

unlatching a single lock in the center of the windshield header, a console-mounted button lowers the convertible roof in just 12 To ensure long life for the seals, the side windows by 6 millimeters if they’re closed the driver operates the roof. As the begins to lower, the rear tilts open and slides The roof folds into a Z shape, lowers into the and the cover closes.

While the section of the roof remains exposed, it fits flush the cover to retain the car’s lines.

Porsche constructed the frame mainly from magnesium. The frame’s smooth ensures that the load points don’t show the car, benefiting aesthetics, and safety. The roof frame just 28 pounds, yet is strong to maintain its shape even heavy snow. The three-layer Boxster roof provides comfort and function:

A synthetic outer layer provides protection against the elements.

A middle layer insulates the top and water leakage.

A cloth which covers the roof and reduces noise.

Strategically tensioning elements and reinforcements, the of extensive wind tunnel ensure tight sealing and a fit.

A three-piece wind included in the Sport and Sport option packages, reduces buffeting and noise during driving. The deflector includes two panels that clip each supplemental safety bar and a plastic window panel snaps into place the bars.

For even greater from the elements – during colder months Porsche offers an optional hardtop for the Porsche Boxster. lined and painted to match the the hardtop features a glass window with defroster. Two can easily install the roof, weighs just 55 pounds (25

To extend the Porsche Boxster’s carrying capability, Porsche a truly innovative roof system – a feature among open cars. The system attaches to the convertible (open or closed) or the optional hardtop. Suitable for carrying kayaks or even bicycles, the system will hold up to 165 (75 kg).

Each teardrop-shaped aerodynamic unit includes the main high beams, turn and foglights, plus the optional washers if ordered. Innovative reflectors allow maximum illumination, despite their small light size. polycarbonate (plastic) headlight with a scratchproof coating chips and cracks more than glass, and weigh too.

Optional Litronic

Instead of conventional halogen the optional Litronic high-intensity feature gas-discharge bulbs, in an electric current passes Xenon gas. A polyellipsoid directs the resulting light. of Litronic over conventional include:

Increased illumination

Improved lighting of the edges

illumination to the sides, for safer

Improved color vision the higher color temperature a daylight quality

Because Litronic performance requires headlight aiming, the system an automatic headlight level Front and rear sensors stepped motors to compensate for any in vehicle inclination, such as by acceleration or braking. The high use H7 halogen bulbs, and the level system raises them by 1.2 to optimize the combined Litronic/high pattern.

Litronic also on clean headlight lenses to blinding oncoming traffic, so the option also requires the optional headlight washers, as

Modern Interior, Classic

Inside the Porsche Boxster, from classic Porsche combines with modern and luxury amenities to make the an excellent everyday car.

grain gives the instrument door trim panels, and other areas a high-quality and feel. Cars with the manual transmission feature an shift lever and shift indicator. Tiptronic-equipped cars an aluminum shift gate.

door handles and aluminum-look brake release button and airbag symbols impart an classic design touch. cupholders were added for year 2001.

Beginning the 2001 models, all Porsche feature new light-emitting diode interior orientation lights. One LED gentle illumination of the cockpit and console. An LED on the driver’s side handle illuminates the ignition and light switch, and an LED illuminates door latch.

A three-spoke wheel with color crest replaces the previous wheel for model-year 2001, and the car gain a color Porsche

Instrument Panel

The Porsche instrument panel combines style with traditional driver-oriented function. Tradition locating the ignition key switch to the of the steering column. While by the arc shape of previous Porsche panels, the Porsche Boxster by featuring three separate, gauge pods.

The central and pod includes the tachometer and, at the a digital speedometer readout.

The speedometer occupies the left which also houses a odometer and tripodometer, plus the beam indicator. The right pod displays fuel level, temperature and a digital oil-level In Tiptronic-equipped cars, the right pod includes gear selection for both automatic and manual modes.

A row of lamps underneath the panels provide warnings for functions, including battery oil pressure, brake fluid and brake pad wear.

Comfort and

The two seats feature integrated and partial leather trim. equipment includes manual height adjusters and power and a telescoping steering column. trim covers the steering rim, gearshift knob and brake lever.

As an option, the can choose optional heated as well as optional full seats with memory for the seat and sideview mirrors.

The automatic climate control includes a dust/pollen filter and an charcoal odor filter. The control not only holds settings, but also responds to intensity.

Significant for a high-performance the air conditioner compressor power remains constant. Cooling controls intake pressure, in turn determines output five percent and 100 percent. type of compressor does not on and off, thus avoiding the lurching affect and noise.

By the ventilation system circulates or cooled air – depending on the setting – through the luggage compartment.

Extensive Equipment

Standard interior includes power windows one-touch lowering and raising, an cassette stereo system, windshield wipers, a heated washer system, power view mirrors, dual vanity mirrors and an inside compartment release.

Interior includes compartments in the doors and a compartment in the center console. The compartment provides additional space with the roof

Porsche Communication Management

The Porsche Communication Management includes a cassette stereo, GPS system with separate drive, an on-board computer, and a control indicator. A five-inch LCD color screen displays all The onboard computer, which is included as part of the optional Touring package, displays driving range, average consumption, ambient temperature and functions.

For precise navigation, the PCM integrates maps on CD-ROM discs by Navigation Technologies), a GPS antenna in the dashboard, ABS wheel speed and a gyroscope. The system reads aloud and displays the car’s via onscreen maps. The driver or can enter specific addresses or points of interest.


Porsche Boxster customers can the interior by choosing among a of options:

Full leather in standard and special colors

leather interior

Wood, and Aluminum/Chrome/Stainless Steel interior packages

Passive Safety

remains as committed to the safety of its as it does to the performance. The automaker anti-lock brakes as standard on all its models, and the Porsche Boxster the latest thinking from in structural integrity, restraint and rollover protection.

The Porsche more than satisfies all safety requirements for frontal, and side impacts, as well as standards where they Passive safety – the of a vehicle to protect its occupants in a – starts with a structure designed to absorb energy and protect the passenger

In a frontal impact, several energy paths direct energy toward the high-strength bulkhead and sidemembers. Front and crumple zones protect the rigid passenger compartment.

the term crumple zone has commonplace in the auto industry, important to describe the Porsche-patented In a frontal impact, several energy paths direct energy toward the high-strength bulkhead and sidemembers. Front and crumple zones protect the rigid passenger compartment.

arranged front impact in two tiers. The first tier the front lateral body members. The front longitudinal and bulkhead crossmembers behind the compartment form the second The front-mounted fuel tank and pipes lie outside the crumple

The rear crumple zone crash energy in a similar with the rear bulkhead to prevent engine intrusion the passenger compartment.


Porsche uses high-strength for many panels and components in areas, including the front and bulkheads, front and rear cowl frame and A-pillar Overall, high-strength steel for nearly 30 percent of the body Strategically placed lateral include even the seat

As a whole, the Porsche Boxster the torsional rigidity and flexing of a closed coupe, which not only safety, but handling and comfort, as well.


Porsche has equipped all its cars dual airbags as standard since 1989. Airbags the protection offered by the three-point which, along with the anchor to the supplemental safety bar (see below). In addition, equips all its current models the Porsche Side Impact System, which includes door panels and door-mounted airbags.

The 30-liter capacity provide additional protection for the chest, pelvis and arms in a impact.

At a customer’s request, a Porsche dealer can install a that deactivates the passenger when a Porsche-approved baby is used. The system features a brace with belt in front of the passenger seat. the special baby seat this brace deactivates the

To install the system, the dealer must reprogram the airbag module.

Rollover Protection

designed the Boxster to protect its even in statistically rare accidents. Boron steel runs inside the windshield and A-pillars to reinforce them. The safety bars behind the form the top of a rollover protection

Made from welded steel, this structure a transverse support tube and the bars to solid members in the structure. Beginning with 2001, Porsche added soft-touch covering to the supplemental bars. As an option, the buyer can silver or body color bars.

Racecar-Inspired Chassis

drew on decades of mid-engine and racecar experience to design a that would make the Boxster handle and ride whether taming a backroad or a commute. That’s not a new philosophy for which has always balanced performance with everyday

A unitized body with box sections and bolt-on front the Porsche Boxster chassis light but strong and responsive systems, quick, accurate and racecar-derived brakes. Porsche most of the Boxster from one of the most versatile materials – steel. Aluminum for about 20 percent of the car’s

Porsche uses aluminum in the mainly for mechanical systems, as the engine, the transmission case, components, brake calipers and

Porsche uses several of steel in the Porsche Boxster, high-strength low alloy (HSLA) in key and safety areas. For rollover for example, Porsche uses boron steel (steel with the element Boron) in the tubing inside the windshield

To build strength into steel areas, Porsche a technique called tailored in place of single large Tailored blanks start as sheet steel pieces from different thickness and Laser welding the pieces them to little heat, one larger distortion-free blank. the blank produces a tailor-made of exceptional strength, yet low weight.

For the Porsche makes the front rear inside sidemembers and floor section from blanks.

Front Suspension

The Boxster suspension systems the car with handling limits in with the powertrain performance and predictability in line with the safety philosophy. The Porsche-optimized strut design uses an lower control arm, wheel carrier, aluminum coil spring, twin-tube shock absorber and a 23.1 x 3.4 mm stabilizer bar. The aluminum carries the lower control diagonal steering arms and the steering.

Rear Suspension

The strut design provides lateral and longitudinal rigidity low unsprung weight. Negative steering offset helps the car under varying braking including ABS intervention. The suspension prevents brake dive.

a Porsche-optimized MacPherson strut the rear suspension mounts to an subframe that carries the transverse, diagonal and toe-control and the transaxle mount. The subframe provides lateral reinforcement for the The rear stabilizer bar measures x 2.5 mm.

As on the front, the struts use dual-tube shock absorbers.

The rear advances the Weissach axle concept – so named for its at Porsche’s Weissach, Germany, track. During cornering, the toe arms effect slight on the outside wheel. This minimizes the effect of weight during hard cornering, to keep the car stable through a

Suspension geometry prevents during acceleration.

Optional Chassis Package

Customers who even sharper handing can order the Sport Chassis package, which features rigidly tuned springs and spring plates (front and includes stronger, larger-diameter bars (23.6 x 3.5 mm front and x 2.6 mm rear).

Rack-and pinion combines the benefits of light quick response and excellent feel that Porsche demand. The hollow rack unsprung weight, while the power assist eases maneuvering without compromising response or road feel. A power steering fluid valve reduces susceptibility to shocks.

The 16.9:1 steering yields a quick 2.98 lock-to-lock. The tight 35.8-ft. meter) turning circle outstanding maneuverability from narrow back roads to parking lots. The standard (380 mm), leather-wrapped wheel telescopes up to 1.6 inches (40 mm) to driver comfort.

Derived the Porsche GT1 racecar, the Boxster vented disc brakes use monoblock brake calipers, contribute to quick brake for reduced heat and optimal pedal travel and feel. In the monoblock design reduces weight because it does not the connection bolts of a two-piece The four-pistons in each caliper in diameter to help prevent brake wear.

The front measure 11.7 inches in and 0.95-inch thick (298 mm x 24 The rear discs measure as large – 11.5 in diameter and 0.8-inch thick mm x 20 mm). Cooling air flows to the discs through two ducts and guide spoilers on the longitudinal arms.

Like every new the Boxster features an anti-lock system (ABS) as standard

Porsche Stability Management

Beginning with model-year the Porsche Stability Management (PSM) replaced the optional control system for the Porsche PSM, a system first on the all-wheel drive 911 Carrera 4 gives the Porsche Boxster the level of stability in racetrack driving and adds another of dynamic safety on slippery In addition, PSM provides a traction function for the rear wheels.

PSM can any loss of grip at the front or wheels and prevent instability by selective braking (braking one to keep the car on course. On slippery PSM can help keep the Porsche going in the direction the driver On the racetrack, PSM can lend a helping through the slalom and fast

PSM collects data from a angle sensor, lateral sensor and the ABS wheel speed to determine if the car is heading in the direction the is steering. If PSM detects any deviation, it correction by applying an opposite moment – braking one or outside wheel to nudge the car on course.

PSM requires an electronic throttle because it may need to reduce – not just apply braking – to help stability. PSM reduces power by adjusting ignition timing and if necessary, fuel flow. The PSM operates so quickly that drivers likely will not it making corrections.

The driver can PSM with a dashboard switch. for safety, PSM will engage braking and then disengage the driver lifts off the brake.

A lamp on the instrument panel PSM operation. While confident in the ability as a dynamic handling Porsche cautions drivers PSM cannot counteract the laws of such as gravity and available The driver should heed the and adjust his/her driving

Wheels and Tires

The Porsche applies a racecar-derived staggered and tire arrangement – wheels with wider, tires on the rear. The standard alloy wheels measure 16 x 6 in front and mount 205/55 tires; the 16 x 7-inch rear mount 225/50 ZR16

An optional 17-inch wheel/tire features 17 x 6 inch wheels 205/50 ZR17 tires in and 17 x 8.5 inch wheels with ZR17 tires in the rear. An option package includes 18 x 7.5 wheels with 225/40 tires in front and 18 x 9 inch with 265/35 ZR18 in the rear.

217-Horsepower Boxer

Powered by a 2.7-liter, 217-horsepower opposed six-cylinder engine, the Boxster can accelerate from mph in just 6.4 seconds (0-100 in 6.6 sec.) and reach a top speed of 155 mph km/h) on the test track. The engine replaced a 201-horsepower version that powered the Porsche Boxster models. The displacement engine features a induction system – to that in the 911 – that boost horsepower and torque.

An electronic drive-by-wire throttle provides more precise control than mechanical for improved response and lower

The 2.7-liter Porsche Boxster produces 192 lb.-ft. of peak at 4,500 rpm, with a 147 lb.-ft. of torque available as as 1,750 rpm. The engine peak torque from rpm to nearly 6,000 rpm, quicker response than smaller-displacement engines. The driver this torque performance instant engine response in any

Engineers refer to this of performance as an engine’s flexibility its ability to respond to throttle at various loads and speeds. measure flexibility by acceleration in (no downshifting). The Porsche Boxster from 50 mph (80 km/h) to 75 mph (120 in top gear in 10.4 seconds a full second quicker the previous 2.5-liter model.

The of the Porsche Boxster to the U.S. in model-year 1998 ushered in a new era for engine design. While the horizontally opposed boxer owes its heritage to the very Porsche, liquid cooling air cooling for Porsche standard-production cars after nearly decades. Consequently, the greater of liquid cooling allowed to use four-valves-per cylinder in place of two per-cylinder in the air-cooled engines.

The name for this engine comes from the motion of the and pistons, which resembles boxers throwing punches. opposed engines are also as flat engines, because cylinders lie in a flat plane. of the boxer layout include packaging and low inherent vibration.

In a boxer engine contributes to a low of gravity, since the layout most of the engine’s mass at a low in the vehicle.

Innovation from the Up

The Porsche Boxster engine only its horizontally opposed with previous Porsche engines. Porsche introduced new architecture and new construction techniques the Porsche Boxster engine.

The Boxster engine features a (vertically split) aluminum (crankcase). The block holds the (also vertically split) bearing case, which nodular cast iron shells. This construction reduces bearing clearance caused by temperature fluctuations, in turn reduces noise.

Oil jets inserted into the case provide additional cooling.

Multi-piece engine allows Porsche to cast oil and passages into the block than drill them in That simplifies engine and reduces the chances of debris into the engine. The cylinders innovative wear-reducing technology LOKASIL.

The process casts made from 25 percent percent air directly into the During block casting, the air leaving the silicon locally its path – hence the LOKASIL. A chemical etching then exposes the silicon in the

The drop-forged crankshaft rides in main bearings and features 12 Porsche laser-scores and then the connecting rods after creating perfectly matched

Integrated Dry Sump Oil System

has long featured race-proven dry oil systems. In past engines, used a separate, remote oil The Porsche Boxster engine an integrated dry-sump system the sump sits inside the next to the crankshaft.

A return oil pump in each head (oil cannot back into the sump the cylinder heads in a boxer routes the oil through two separators, centrifuge the oil to defoam it and remove gases. Doing so ensures oil for optimal performance, emissions and The Porsche Boxster engine 8.7 quarts (8.2 liters) of and the Porsche Boxster engine can go a 15,000 miles (24,000 km) oil changes and 30,000 miles km) between oil filter changes.

The system includes an oil cooler. engine warm-up, the engine helps heat the oil to bring the up to operating temperature quickly. the engine oil reaches 200 degrees (93 degrees Celsius), the oil cooler heat to the engine coolant.

Three-piece aluminum cylinder include the actual head, housing and a cover. As with the block, multi-piece construction casting coolant and oil passages the heads, eliminating the need to them after manufacturing. the left and right cylinder identical (and therefore reduces manufacturing complexity and

Chain-driven double overhead – hollow-cast for lower weight – actuate valves per cylinder via bucket-type Automatic chain tensioners and valve lash compensation maintenance.

The Porsche Boxster employs the Porsche-patented VarioCam which boosts low-end and torque by varying valve at different engine speeds. overlap – the fraction of a at the end of the engine’s exhaust … and of the intake … when all are open – directly torque and emissions.

Early timing – when the valves open and close – creates greater overlap, which enhances filling and boosts torque. valve timing closes the valves later in the …, draws in more air to boost Late valve timing reduces exhaust hydrocarbon at idle and low engine speeds.

In the engineers had to set camshaft timing thus valve overlap) as a sometimes sacrificing low-end for high-end horsepower, or vice Porsche introduced the VarioCam in the early 1990s to vary overlap, enhancing torque without reducing high-end

In operation, the engine control operates timing pistons in the camshaft chain tensioners. the engine reaches 1,200 the control unit signals the to rotate the intake camshafts by degrees. When the engine 5,120 rpm, the pistons the camshafts to their normal (The control unit delay VarioCam until rpm if the engine oil temperature exceeds 266 Fahrenheit.)

The Porsche VarioCam requires fewer parts variable valve timing in other automaker’s models.

Resonance Intake

The Porsche inherits its twin-resonance air induction from the 911 Carrera . The system as a resonance supercharger, allowing the to draw from higher airflow at certain engine A crossover pipe connects the air collector/resonance chambers for each bank. A flap in the pipe closed from idle to 3,100 rpm.

When it each cylinder bank can from airflow excited by the created by alternating induction all six cylinders. In essence, dual creates two induction paths for cylinder. Below 3,000 the cylinders draw air from a path.

From 3,000 rpm to 5,100 rpm – when the flap opens – the draw from a long path, which boosts Above 5,100 rpm, the again closes to allow the to draw intake air from a intake path to boost at higher engine speeds.


The Motronic ME 7.2 engine unit, which Porsche in model-year 2000, essentially the functions of the ME 5.2 unit, but with the addition of the E-Gas electronic control. Instead of the gas pedal a cable attached to the throttle it pulls a short cable to a pedal value transmitter in the The transmitter uses a potentiometer to the pedal travel path and into an electronic signal.

The module processes the signal, it to an electric motor that the throttle valve.

By providing computer control over air at all engine speeds, the electronic control enhances throttle and helps reduce emissions. The also reduces parts, it eliminates the throttle linkage and idle speed control.

Control Unit

The ME 7.2 engine unit also controls:

multipoint fuel injection injected according to firing with separate fuel control for each cylinder

Coil-on-plug ignition system. cylinder features its own ignition mounted directly on a sparkplug, and service interval extends to miles (161,000 km).

Adaptive knock control. a knock sensor detects the ECU can retard ignition timing for cylinders until the condition

Torque manipulation for the optional Stability Management system.

reduction for Tiptronic shifting. ECU will slightly reduce between gearshifts to ensure operation.)

VarioCam operation.

air induction.

Exhaust System

A exhaust system for each bank feeds into two converters, which feature a (Platinum, Palladium and Rhodium) coating for improved emission From the converters, the exhaust flow into a single muffler and exit through a tailpipe, which emits a Porsche exhaust note.


The Porsche Boxster equipped with a precise-shifting, synchronized (including reverse) manual transmission. To match the characteristics of the larger, more engine, Porsche slightly the fourth and fifth and slightly the final drive ratio in the transmission. Gear ratios in the Tiptronic S automatic transmission the same as before.

The five-speed transmission features a dual-mass and a cable-actuated shift lever to vibration and noise. Because the pattern puts reverse below fifth, the transmission a reverse lock to prevent from fifth to reverse.

S Automatic

Many driving have long proclaimed a transmission to be the proper transmission for a Automatics, they felt, did not the driver to make best use of an speed range and torque. Nor an automatic provide real involvement, essential to the sportscar experience.

However, with the Tiptronic S five-speed automatic even diehard stick drivers may experience greater pleasure than they’d expect from an automatic.

the Tiptronic S transmission, the floor includes positions for P (Park), R N (Neutral), D (Drive) and, to the of D, M (Manual). When shifted D, the transmission offers full operation of the five gears, yet greater intelligence and sophistication traditional automatic transmissions. For Tiptronic S can downshift when the brakes into a corner.

In mode, this innovative allows the driver to shift via steering wheel controls.

Automatic Mode

In automatic the Tiptronic S transmission offers different shift maps or Leisurely driving will up a map that upshifts quickly to engine speeds low – for quiet cruising. Rapid pedal movement and frequent in acceleration – as one might on a twisty stretch of road trigger a change to a sporty map that holds lower longer to make use of engine

Tiptronic S will immediately to the shifting map appropriate for the driving For example, it will switch sporty mode to a more shift map if the driver leaves a two-lane and enters a residential

The Tiptronic S transmission even like a manual transmission cornering. As the driver quickly the gas pedal while entering a Tiptronic S holds the current If the driver then applies the Tiptronic S downshifts to provide braking going into the and acceleration when exiting.

The S control module recognizes by comparing speeds of the inner and wheels.

A continuously engaging torque converter can lock up in all but gear to optimize efficiency. To smooth shifting, the Motronic control unit slightly engine torque during by retarding ignition timing for a of a second.

Manual Control/

the shift lever into M D at any time gives the driver manual control of the Tiptronic S The car will hold the current until the driver upshifts or using thumb switches on the or left steering wheel Pushing the + button upshifts, and button marked – Tiptronic S also allows the to shift manually with the wheel switches even the shift lever is in D.

Shifts instantaneously, with no loss of force. That is, shifting up or does not reduce engine as it does when taking foot off the gas when shifting a transmission.

The Tiptronic S transmission additional functions beyond the of a traditional automatic transmission. For when the driver first the car, Tiptronic S operates a Warm-up program. This map delays upshifts and keeps the torque converter open to bring the engine up to operating rapidly (for optimal and lowest emissions).

Once Tiptronic S will respond to in road grade, delaying on inclines to sustain climbing and holding a gear on descents to engine braking. The transmission helps out in low-traction situations. If the ABS speed sensors detect slip, Tiptronic S will to help restore traction.

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