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BMW 730i

(1990 model)

Brief specs of 1990 BMW 730i

4-door 5-seater sedan (saloon), petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, SOHC (single overhead camshaft), 2986 cm3 / 182.2 cu in / 182.2 cu in, 138.0 kW / 185.1 hp / 185.1 hp @ 5800 rpm / 5800 rpm / 5800 rpm, 260.0 N·m / 191.8 lb·ft / 191.8 lb·ft @ 4000 rpm / 4000 rpm / 4000 rpm, manual 5-speed transmission, rear wheel drive, 222 km/h / 138 mph / 138 mph top speed

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from1990
Model730iIssued until
Serie7Number made
Model familyE32Body construction
Model codeBody designation
ManufacturerBMWCountryDE,ZA

Bodywork

Base platformNumber of doors4
Bodywork typesedan (saloon)Number of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4910 mm / 193.3 in / 193.3 inTotal (curb) weight1600 kg / 3527 lb / 3527 lb
Width1845 mm / 72.6 in / 72.6 inDry weight
Height1411 mm / 55.6 in / 55.6 inLoad capacity
Wheelbase2832 mm / 111.5 in / 111.5 inGross (max.) weight
Track front1527 mm / 60.1 in / 60.1 inTowing weight
Track rear1550 mm / 61.0 in / 61.0 inWeight distribution (front)
Ground clearance140 mm / 5.5 in / 5.5 inFuel capacity90 l / 19.8 UK gal / 23.8 US gal
Length/wheelbase ratio1.73  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.21 m2 / 23.8 sq ft / 23.8 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 Typestraight (inline) Total number of valves12
Engine ManufacturerBMWValves per cylinder2
Engine constructionBore89.0 mm / 3.50 in / 3.50 in
Fuelpetrol (gasoline)Stroke80.0 mm / 3.15 in / 3.15 in
Fuel detailsBore/Stroke ratio1.11
Fuel supplyBo Motronic fuel inj.Engine displacement2986 cm3 / 182.2 cu in / 182.2 cu in
Engine Main bearings7Unitary capacity497.67 cm3/cylinder / 30.370 cu in/cylinder / 30.370 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio9.0 : 1
SumpMax. output power138.0 kW / 185.1 hp / 185.1 hp at 5800 rpm / 5800 rpm / 5800 rpm
AspirationnaturalMax. torque260.0 N·m / 191.8 lb·ft / 191.8 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)64.5 kW / 86.5 hp / 86.5 hp (est.)
CoolantwaterSpecific output46.2 kW/l / 1.016 bhp/cu in / 1.016 bhp/cu in
Catalytic converteryesSpecific torque87.1 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) ratio0.81
  Final gear (drive) ratio3.64

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed222 km/h / 138 mph / 138 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio115.6 kW/ton / 87.6 bhp/ton / 87.6 bhp/ton
Acceleration 0-100 km/h9.30 s / 9.30 s / 9.30 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 locationfrontEngine alignmentlongitudinal
Steeringrecirculating ball PASSteering details
Turns lock-to-lockTurning circle11.6 m / 38.1 ft / 38.1 ft
Suspension frontIndependent, Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearIndependent,Tr Links, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels frontWheels rear
Tyres front205/65 VR 15Tyres rear205/65 VR 15
Brakes frontventilated discBrakes reardisc
Brake diameter frontBrake diameter rear
Brakes detailsservo-assisted, ABS (anti-lock braking system)Braked area

Technical specifications and performance data of BMW 730i

Infobox

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