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 |
