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Porsche 911 SC Sportomatic

(1978 model)

Brief specs of 1978 Porsche 911 SC Sportomatic

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 6-cylinder 12-valve flat (horizontally opposed, boxer) engine, SOHC (single overhead camshaft), 2994 cm3 / 182.7 cu in / 182.7 cu in, 265.0 N·m / 195.5 lb·ft / 195.5 lb·ft @ 4200 rpm / 4200 rpm / 4200 rpm, automatic 3-speed transmission, rear wheel drive, 220 km/h / 137 mph / 137 mph top speed

units: metric UK US

Basic (general) data

Marque (make)PorscheIssued from1978
Model911 SC SportomaticIssued until
Serie911Number made
Model familyM SeriesBody 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

Length4291 mm / 168.9 in / 168.9 inTotal (curb) weight1160 kg / 2557 lb / 2557 lb
Width1652 mm / 65.0 in / 65.0 inDry weight
Height1320 mm / 52.0 in / 52.0 inLoad capacity
Wheelbase2272 mm / 89.4 in / 89.4 inGross (max.) weight
Track front1369 mm / 53.9 in / 53.9 inTowing weight
Track rear1379 mm / 54.3 in / 54.3 inWeight distribution (front)
Ground clearance120 mm / 4.7 in / 4.7 inFuel capacity80 l / 17.6 UK gal / 21.1 US gal
Length/wheelbase ratio1.89  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.85 m2 / 20.0 sq ft / 20.0 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine Code930/03Total number of cylinders6
Engine Typeflat (horizontally opposed, boxer) Total number of valves12
Engine ManufacturerPorscheValves per cylinder2
Engine constructionBore95.0 mm / 3.74 in / 3.74 in
Fuelpetrol (gasoline)Stroke70.4 mm / 2.77 in / 2.77 in
Fuel detailsBore/Stroke ratio1.35
Fuel supplyBosch K-Jetronic fuel injectionEngine displacement2994 cm3 / 182.7 cu in / 182.7 cu in
Engine Main bearings8Unitary capacity499.00 cm3/cylinder / 30.451 cu in/cylinder / 30.451 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio8.5 : 1
SumpdryMax. output power at
AspirationnaturalMax. torque265.0 N·m / 195.5 lb·ft / 195.5 lb·ft at 4200 rpm / 4200 rpm / 4200 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)64.0 kW / 85.9 hp / 85.9 hp (est.)
CoolantairSpecific output
Catalytic converternoSpecific torque88.5 N·m/l / 0.77 lb·ft/cu in / 0.77 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio0.93
  Final gear (drive) ratio3.38

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 ratio153.0 kW/ton / 115.9 bhp/ton / 115.9 bhp/ton
Acceleration 0-100 km/h7.00 s / 7.00 s / 7.00 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, MacPherson strut, Wishbone (A-arm, control arm), Anti-roll (anti-sway) bar (ARB)Suspension rearIndependent, Semi-trailing arm, Torsion bar, Anti-roll (anti-sway) bar (ARB)
Wheels front6.5J x 15Wheels rear7J x 15
Tyres front185/70 VR 15Tyres rear215/60 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 detailsservo-assistedBraked area

Technical specifications and performance data of Porsche 911 SC Sportomatic

Infobox

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