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Porsche 911 Targa 4 (991) (2015) – Specifications & Performance

2015 Porsche 911 Targa 4 (991) Technical Specifications

Engine layout Rear engine
Engine type 6-cylinder boxer engine
Cylinders 6
Valves per cylinder 4
Construction Aluminum block and heads
Fuel injection Direct Fuel Injection (DFI), 140 bar
Fuel Premium
Displacement 3.4 liter
Bore/Stroke 91.0 mm / 77.5 mm
Maxmimum power output @ engine speed 345 hp @ 7,400 rpm
Maximum torque @ engine speed 287 lb.-ft. @ 5,600 rpm
Electrical System 12 volt, 2100 watt alternator, 70 Ah battery
Maximum engine speed 7,800 rpm
Compression ratio 12.5:1
Power to weight ratio (lbs/hp) (PDK) 9.7 (9.83)
Output per liter 102.9 hp/l
Lubrication Integrated dry-sump
Engine Management EMS SDI 9.1
Drivetrain Chassis & Suspension All-wheel-drive, with electronically controlled, hydraulically actuated multi-plate center differential, locking rear differential, PTM
Body 2+2-seat, coupe, aluminum and steel composite unibody, aluminum doors and hood
Front Axle Independent MacPherson strut with tranverse and longitudinal control arm, shock inside spring
Rear Axle Independent multi-link suspension with shock inside spring
Steering System Electro-mechanical power steering
Steering Ratio 12.25:1 – 16.6:1
Turning Circle 36.4 ft
Brakes & Wheels
Brakes & Wheels
Caliper type Fixed aluminum monobloc
Rotor material Steel, drilled and internally vented
Caliper color Black
Number of pistons (front/rear) 6/4
Steel Rotor diameter (front/rear) mm 330/330
Steel Rotor thickness (front/rear) mm 28/28
PCCB rotor diameter (front/rear)mm 350/350 (Opt.)
PCCB rotor thickness(front/rear)mm 34/28 (Opt.)
Wheel type (standard) Carrera Wheel
Wheels and tires front (standard) 8.5J x 19 235/40 ZR 19
Wheels and tires rear (standard) 11J 19 295/35 ZR 19
Transmission
Manual Transmission PDK Transmission (Opt.) 7-speed manual 7-speed PDK
Ratios (PDK in parentheses)
1st 3.91 (3.91)
2nd 2.29 (2.29)
3rd 1.55 (1.65)
4th 1.30 (1.30)
5th 1.08 (1.08)
6th 0.88 (0.88)
7th 0.71 (0.62)
Reverse 3.55 (3.55)
Final Drive Ratio 3.44:1 (3.44:1)
Dimensions,Aerodynamics, & Weight
Length (inches) 176.8
Wheelbase (inches) 96.4
Width w/ mirrors (inches) 77.8
Width w/o mirrors (inches) 72.9
Height (inches) (PDK) 51.1
Track width front (inches) 60.3
Track width rear (inches) 61.4
Drag coefficient (Cd) 0.3
Legroom* (inches) TBD
Headroom (inches) TBD
Cargo area volume (cu.-ft.) seats down 10
Fuel tank capacity refill volume (gal) 17.9
Curb weight (lbs) (PDK) 3,395 lbs (3,439 lbs)
Gross Vehicle Weight (lbs) (PDK) 4,244 lbs (4,288 lbs)
Performance
Top track speed (mph) 175 mph
Top track speed (mph) (PDK) 174 mph
Acceleration 0-60 (mph) 5.0 seconds
Acceleration 0-60 (mph) (PDK) 5.0 seconds  (4.8 seconds w/ Sport Chrono)
1/4 mile from standing start (secs) 13.3 seconds
1/4 mile from standing start (secs) (PDK) 13.2 (12.9 w/ Sport Chrono)
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