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Porsche 911S Sportomatic

(1974 model)

Brief specs of 1974 Porsche 911S Sportomatic

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 6-cylinder 12-valve flat (horizontally opposed, boxer) engine, SOHC (single overhead camshaft), 2687 cm3 / 164.0 cu in / 164.0 cu in, 129.0 kW / 173.0 hp / 173.0 hp @ 5800 rpm / 5800 rpm / 5800 rpm, 235.0 N·m / 173.3 lb·ft / 173.3 lb·ft @ 4000 rpm / 4000 rpm / 4000 rpm, automatic 4-speed transmission, rear wheel drive, 220 km/h / 137 mph / 137 mph top speed

units: metric UK US

Basic (general) data

Marque (make)PorscheIssued from1974
Model911S SportomaticIssued until
Serie911Number made
Model familyBody construction
Model codeBody designation
ManufacturerPorscheCountryDE

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2+2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4290 mm / 168.9 in / 168.9 inTotal (curb) weight1090 kg / 2403 lb / 2403 lb
Width1610 mm / 63.4 in / 63.4 inDry weight
Height1320 mm / 52.0 in / 52.0 inLoad capacity
Wheelbase2271 mm / 89.4 in / 89.4 inGross (max.) weight
Track front1372 mm / 54.0 in / 54.0 inTowing weight
Track rear1354 mm / 53.3 in / 53.3 inWeight distribution (front)
Ground clearanceFuel capacity80 l / 17.6 UK gal / 21.1 US gal
Length/wheelbase ratio1.89  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.81 m2 / 19.4 sq ft / 19.4 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders6
Engine Typeflat (horizontally opposed, boxer) Total number of valves12
Engine ManufacturerPorscheValves per cylinder2
Engine constructionBore90.0 mm / 3.54 in / 3.54 in
Fuelpetrol (gasoline)Stroke70.4 mm / 2.77 in / 2.77 in
Fuel detailsBore/Stroke ratio1.28
Fuel supplyBosch K-Jetronic fuel injectionEngine displacement2687 cm3 / 164.0 cu in / 164.0 cu in
Engine Main bearings8Unitary capacity447.83 cm3/cylinder / 27.328 cu in/cylinder / 27.328 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio8.5 : 1
SumpdryMax. output power129.0 kW / 173.0 hp / 173.0 hp at 5800 rpm / 5800 rpm / 5800 rpm
AspirationnaturalMax. torque235.0 N·m / 173.3 lb·ft / 173.3 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)55.2 kW / 74.0 hp / 74.0 hp (est.)
CoolantairSpecific output48.0 kW/l / 1.055 bhp/cu in / 1.055 bhp/cu in
Catalytic converternoSpecific torque87.5 N·m/l / 0.77 lb·ft/cu in / 0.77 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio0.82
  Final gear (drive) ratio3.86

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed220 km/h / 137 mph / 137 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio158.7 kW/ton / 120.3 bhp/ton / 120.3 bhp/ton
Acceleration 0-100 km/h7.60 s / 7.60 s / 7.60 sFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationrearEngine alignmentlongitudinal
Steeringrack & pinionSteering details
Turns lock-to-lockTurning circle
Suspension frontIndependent, Torsion barSuspension rearIndependent, Torsion bar
Wheels front6J x 15Wheels rear6J x 15
Tyres front185/70 VR 15Tyres rear185/70 VR 15
Brakes frontventilated discBrakes rearventilated disc
Brake diameter front283 mm / 11.1 in / 11.1 inBrake diameter rear290 mm / 11.4 in / 11.4 in
Brakes detailsBraked area

Technical specifications and performance data of Porsche 911S Sportomatic

Infobox

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