Powertrain The breathtaking future of car The new 718 Boxster: Development approaches
• Sound • Turbo rightsizing • Free -revving • Start -stop plus • Driving experience • Coasting function • Weight reduction
• Power-to-weight ratio • Engine Response
The breathtaking future of car Benefits of the Porsche flat engine concept
• Low centre of gravity • Free-revving • Typical flat engine sound • Exceptional driving performance • Direct engine response • High everyday utility • Excellent sportiness The new Boxer engine family: technology kit
• Direct fuel injection • Four valve technology • VarioCam Plus • Modulare charging technology • Short stroke setup • Intergrated dry sump • Cylinder surface iron-coated • Thermal management
The new four-cylinder turbo flat engines: Specifications
718 Boxster 718 Boxster S
Displacement 1,988 cc 2,497 cc
Bore 91.0 mm 102.0 mm
Stroke 76.4 mm 76.4 mm
Compression 9.5:1 9.5:1
Power (220 kW) 300 hp (257 kW) 350 hp
Max. torque 380 Nm 420 Nm
Max. engine speed 7,500/min 7,500/min Forced induction concept: Air flow control and intercooling
• Highly efficient intercooler • Low intake temperatures under dynamic driving • Reduced intake pressure losses Forced induction concept : Performance spread by varying displacement and turbocharger
Waste-gate charger for 718 Boxster 718 Boxster 718 Boxster S 2.0 litre 2.5 litre
Leistung (220 kW) 300 hp (257 kW) 350 hp
Turbine wheel dia. 50 mm 55 mm
Compressor wheel dia. 58 mm 64 mm
Max. charge pressure 1.4 bar 1.0 bar Charger with variable turbine geometry Charger type Waste-gate VTG and waste-gate (VTG) and waste-gate for 718 Boxster S 718 Boxster S: Power and torque 257 kW at 6,500 rpm
Power [kW] 280 Torque [Nm]
240 420
200 380
160 340
120 300
80 718 Boxster S
40 Predecessor
0 3000 5000 7000 The breathtaking future of car
The new 718 Boxster: Significantly improved acceleration (Sport Plus)
718 Boxster S PDK
Boxster S PDK
718 Boxster PDK
Boxster PDK The breathtaking future of car The new 718 Boxster: Enormously higher pull through power
718 Boxster S
Boxster S
718 Boxster
Boxster
Acceleration from 100 to 200 km/h in fifth gear Lighter weight crankcase with new cylinder lining
Crankcase: • Increased strength by optimised casting process • And special heat treatment • Weight reduced by 8.1 kg = 20.5 per cent
Cylinder lining technology with iron coating: • Iron coated lining (RSW: Rotating-Single-Wire) • Optimised friction pairing for higher peak pressures
• Reduced CO2 due to lower friction losses • Worldwide use and compatible with poor fuel quality New cylinder head with central injector position for new combustion process
• Central injector position • Pre-cast oil galleries • Wall thickness reduced by up to 40 per cent • Reduced temperatures with increased strength • Optimised cross-flow cooling • Optimised flow in intake ports (tumble) Direct fuel injection with new combustion process
• One high-pressure pump with roller tappets • Fuel pressure up to 250 bar • Symmetrical jet distribution • Defined jet angle layout • Good spatial filling • Low wall wetting • Efficient combustion with low raw emissions High-revving turbocharged engines: Modified valve train
• Reduced valve train masses for engine speeds up to 7,500 rpm Intake • Assembled camshafts with one radially driven high-pressure pump and one vacuum pump • VarioCam Plus: - valve lift adjustment - camshaft adjustment - each on intake and exhaust sides Exhaust Optimised oil management: Integrated dry sump with new oil pan
old new • Aluminium oil pan • Integrated dry sump • Fewer components by functional integration • Oil management optimised for track driving Optimised oil mangement : Fully variable oil pump
• Modular and fully controllable • lIntelligent oi pressure regulation • Weight reduced by 1.7 kg • Compact construction Thermal management with switchable water pump
• Quick control • Need-based cooling
open closed • Higher coolant throughput at full load • Low weight
Schematic diagramm:
982 Stop valve 981
Temperature 987 II New: Switchable water pump
Thermostat Time New flat engine family with four and six cylinders: Carry-over of parts and technology
carry-over parts carry-over technology B6/B4 specific parts Typical Porsche sound for a passionate driving experience
Three Specifications: • 718 Boxster with one oval tail pipe • 718 Boxster S with round twin tail pipes 718 Boxster • Optional sports exhaust system with flap
718 Boxster S
Sports exhaust system Sport Chrono Package with new mode switch in steering wheel
Driving modes: • Normal • SPORT • SPORT Plus • Individual
Sport Response Button: • Engagese th optimal gear • Rev step-up • Buildup of charge pressure Modified seven-speed Porsche dual-clutch gearbox PDK
• Modified gear ratios and torque capacity • Optimised wheel set oil (load-bearing capacity) • New dual-mass flywheel with centrifugal pendulum • Intelligent shifting strategy • Sportier full-load shifts • Launch Control Dual-mass flywheel with centrifugal pendulum
Enhanced comfort and reduced fuel consumption • Optimised spring-mass damper system • Centrifugal pendulum specifically adjusted for the four-cylinder engine • Higher decoupling quality at low engine speeds
Centrifugal pendulum Damper Weight-reduced six-speed manual gearbox
Six-speed manual gearbox: • Modified torque capacity • Reduced weight • Newe on -plate dry clutch
Enhanced comfort and reduced fuel consumption • New dual-mass flywheel with centrifugal pendulum • Optimised spring-mass damper system • Higher decoupling quality at low engine speeds CO2 emissions reduced by up to 13 per cent
(NEDC) -25 g/km approx. -13 % emissions 2
CO -21 g/km
and
183 g/km -4 g/km 7.9 l/100 km 167 g/km 7.3 l/100 km 158 g/km consumption consumption 6.9 l/100 km fuel EU Boxster (981) PDK Powertrain and driving Driving resistance and 718 Boxster PDK 718 Boxster S PDK stratey ancillary components Significant improvements in performance and efficiency
B1 B2
210
] (340 hp) (306 hp) /km g [ 200
emissions Boxster S 2 190 (315 hp) CO Boxster C (265 hp) 180 (367 hp) 170 718 Boxster S (350 hp) A 160 718 Boxster (310 hp) (300 hp)
150
140 4 4,5 5 5,5 6
[s] Acceleration 0-100 km/h The new 718 Boxster: Summary
• Entirely new four-cylinder flat engines • Continues tradition of high-revving, spontaneously responding Porsche flat engines • Considerable increase in driving performance by turbocharging technology • Power boosted by 35 hp • Considerable increase in torque over the entire engine speed range • Typical Porsche sound and emotional driving experience
• CO2 reduced by up to 13 per cent in the NEDC