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Porsche 911 Turbo Cabriolet (991) (2014) – Specifications & Performance

2014 Porsche 911 Turbo Cabriolet (991) Technical Specifications

Engine layout Rear Engine
Engine type Twin Turbo Boxer w/ VTG
Cylinders 6
Valves per cylinder 4
Construction Aluminum block and heads
Fuel injection Direct Fuel Injection (DFI)
Fuel Premium
Displacement (Liters) 3.8
Bore/Stroke (mm/mm) 102 mm / 77.5 mm
Horsepower 520 hp @ 6000-6500
Maximum torque @ rpm 487 lb.-ft. @ 1950 5000
Maximum engine speed (rpm) 7000
Compression ratio 9.8 1
Output per liter 137.0 hp
Lubrication Integrated dry-sump
Electrical System 12 V. 2600 W alternator; battery capacity 95 Ah
Power to weight ratio [lb/hp] 7.06 lb/hp
Management SDI 9
Drivetrain Active all wheel drive
Body Monocoque lightweight body in a combination of steel, aluminum and magnesium
Front Axle MacPherson strut aluminum double wishbone
Rear Axle Aluminum multi-link
Steering System Electromechanical power steering
Steering Ratio 15.0: 1
Turning Circle 34.8 ft
Brakes & Wheels
Caliper type Aluminum monobloc fixed-caliper brake
Rotor material Steel
Caliper color Red
Number of pistons (front/rear) 6/4
Rotor diameter (front/rear) mi 380 mm/380 mm
Rotor thickness (front/rear) m 34 mm/30 mm
Standard wheel [size & name] 20″ Turbo
Wheels (front/rear) 8.5J x 20″ ET51 / 11J x 20 ET56
Tires (front/rear) 245/35 ZR 20 305/30 ZR 20
Number of gears 7-speed
Transmission type 7-speed PDK
Ratios
1st 3.91
2nd 2.29
3rd 1.58
4th 1.18
5th 0.94
6th 0.79
7th 0.62
Reverse 3.55
Front Axle Ratio 3.33
Rear Axle Ratio Final Drive Ratio 3.44 TBD 8.66 in. 6.44 in. (PDK)
Length (inches/mm) 177.4 in /4506 mm
Wheelbase (inches/mm) 96.5 in. 2450 mm
Width w/ mirrors (inches/mm) 77.9 in. /1978 mm
Width w/o mirrors (inches/mm) 74.0 in./1880 mm
Height- PASM 50.9 in. 1292 mm
Height- PASM and Sport Suspension
Track width front (inches/mm) 60.7 in. / 1541 mm
Track width rear (inches/mm) 62.6 in./1590 mm
Drag coefficient (Cd) 0.31
Legroom (inches) TBD
Headroom (inches) TBD
Luggage compartment volume (cu.-ft.) 1151/30 4 gal.
Fuel tank capacity refil volume (gal) 18.0 gal.
Curb weight (lbs) min 3671 lbs.
Curb weight (lbs) max 3814 lbs.
Gross Vehicle W eight (lbs) 4508 lbs.
Payload range (lbs) depend on options 695 lbs. 838 lbs.
Roof load- Max (lbs) 0 lbs.
Top track speed (mph) 195 mph
Acceleration 0-60 (sec) 3.3 sec
Acceleration 0-60 with Sport Chrono (sec) 3.1 sec
Fuel Economy/Rating City 17 mpg
Fuel Economy/Rating Highway 24 mpg
Fuel Economy/Rating Combined 20 mpg