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Porsche 928 S4

(1986 model)

Brief specs of 1986 Porsche 928 S4

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 8-cylinder 32-valve V engine, DOHC (double overhead camshafts, twin cam), 4957 cm3 / 302.5 cu in / 302.5 cu in, 235.6 kW / 315.9 hp / 315.9 hp @ 6000 rpm / 6000 rpm / 6000 rpm, 430.0 N·m / 317.2 lb·ft / 317.2 lb·ft @ 3000 rpm / 3000 rpm / 3000 rpm, manual 5-speed transmission, rear wheel drive, 274 km/h / 170 mph / 170 mph top speed

units: metric UK US

Basic (general) data

Marque (make)PorscheIssued from1986
Model928 S4Issued until
Serie928Number 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)4030 l / 142.32 cu ft / 142.32 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4520 mm / 178.0 in / 178.0 inTotal (curb) weight1550 kg / 3417 lb / 3417 lb
Width1836 mm / 72.3 in / 72.3 inDry weight
Height1282 mm / 50.5 in / 50.5 inLoad capacity
Wheelbase2500 mm / 98.4 in / 98.4 inGross (max.) weight
Track front1551 mm / 61.1 in / 61.1 inTowing weight
Track rear1546 mm / 60.9 in / 60.9 inWeight distribution (front)
Ground clearance120 mm / 4.7 in / 4.7 inFuel capacity86 l / 18.9 UK gal / 22.7 US gal
Length/wheelbase ratio1.81  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)0.34Frontal area (A)2.00 m2 / 21.5 sq ft / 21.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)0.68 m2 / 7.3 sq ft / 7.3 sq ft (est.)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)16.9 kW / 22.7 hp / 22.7 hp (est.)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine (90.0° vee)Total number of valves32
Engine ManufacturerPorscheValves per cylinder4
Engine constructionBore100.0 mm / 3.94 in / 3.94 in
Fuelpetrol (gasoline)Stroke78.9 mm / 3.11 in / 3.11 in
Fuel detailsBore/Stroke ratio1.27
Fuel supplyBo LH-Jet fuel inj.Engine displacement4957 cm3 / 302.5 cu in / 302.5 cu in
Engine Main bearingsUnitary capacity619.63 cm3/cylinder / 37.812 cu in/cylinder / 37.812 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio10.0 : 1
SumpMax. output power235.6 kW / 315.9 hp / 315.9 hp at 6000 rpm / 6000 rpm / 6000 rpm
AspirationnaturalMax. torque430.0 N·m / 317.2 lb·ft / 317.2 lb·ft at 3000 rpm / 3000 rpm / 3000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)106.7 kW / 143.0 hp / 143.0 hp (est.)
CoolantwaterSpecific output47.5 kW/l / 1.044 bhp/cu in / 1.044 bhp/cu in
Catalytic converternoSpecific torque86.8 N·m/l / 0.76 lb·ft/cu in / 0.76 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio2.64

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed274 km/h / 170 mph / 170 mph
Acceleration 0-60 mph (97 km/h)5.70 s / 5.70 s / 5.70 sPower-to-weight ratio203.9 kW/ton / 154.5 bhp/ton / 154.5 bhp/ton
Acceleration 0-100 km/hFuel 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 locationfrontEngine alignmentlongitudinal
Steeringrack & pinion PASSteering details
Turns lock-to-lockTurning circle11.0 m / 36.1 ft / 36.1 ft
Suspension frontIndependent, Double wishbones, Anti-roll (anti-sway) bar (ARB)Suspension rearIndependent,L Trailing arm, Upper wishbone, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels front7J x 16Wheels rear8J x 16
Tyres front225/50 ZR 16Tyres rear245/45 ZR 16
Brakes frontventilated discBrakes rearventilated disc
Brake diameter front282 mm / 11.1 in / 11.1 inBrake diameter rear289 mm / 11.4 in / 11.4 in
Brakes detailsservo-assisted, ABS (anti-lock braking system)Braked area

Technical specifications and performance data of Porsche 928 S4

Infobox

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