1981 BMW 525i E28

This car has a 4 door saloon (sedan) type body with a front positioned engine powering the rear wheels. The BMW 525i belongs to the E28 model family from BMW. Its 6 cylinder, single overhead camshaft naturally aspirated engine has 2 valves per cylinder and a volume of 2.5 litres. In this application it musters power and torque figures of 148 bhp (150 PS/110 kW) at 5500 rpm and 215 Nm (159 lbft/21.9 kgm) at 4000 rpm respectively. The engine transfers its power through to the wheels via a 4 speed manual transmission. The stated kerb weight is 1290 kg. Top claimed speed is 197 km/h, or 122 mph, quoted fuel consumption is 8.0/10.0/14.1 l/100km 90 km/h / 120 km/h / urban.

Pictures

Key facts

1981 BMW 525i E28 information summary

What body style?
4 door sedan/saloon with 4/5 seats
How long?
4620 mm
How heavy?
1290 kg
What size engine?
2.5 litre, 2495 cm3
How many cylinders?
6, Straight
How much power?
150 PS / 148 bhp / 110 kW @ 5500 rpm
How much torque?
215 Nm / 159 ft.lb / 21.9 kgm @ 4000 rpm
How quick?
0-100 km/h: 9.9 s
How fast?
197 km/h, 122 mph
How economical?
8.0/10.0/14.1 l/100km 90 km/h / 120 km/h / urban

BMW E28 models

4 door sedan/​saloon FR 4A 3430 cm3 218 PS 215 bhp 160 kW 1519 kg
BMW M5 -
4 door sedan/​saloon FR 5M 3453 cm3 286 PS 282 bhp 210 kW 1465 kg
4 door sedan/​saloon FR 3A 2495 cm3 150 PS 148 bhp 110 kW 1300 kg

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1981 BMW 525i data
bodywork
Body type4/5 seater sedan/saloon
Number of doors4
Designer
dimensions & weights
mminches
Wheelbase 2625 mm 103.3 inches
Track/tread (front) 1430 mm 56.3 inches
Track/tread (rear) 1470 mm 57.9 inches
Length 4620 mm 181.9 inches
Width 1700 mm 66.9 inches
Height 1415 mm 55.7 inches
Ground clearance
length:wheelbase ratio 1.76
Kerb weight 1290 kg 2844 lb
Weight distribution
fuel tank capacity 70 litres 15.4 UK Gal 18.5 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer BMW
Engine code
Cylinders Straight 6
Capacity 2.5 litre
2495 cc
(152.254 cu in)
Bore × Stroke 86 × 71.6 mm
3.39 × 2.82 in
Bore/stroke ratio 1.2
Valve gear single overhead camshaft (SOHC)
2 valves per cylinder
12 valves in total
maximum power output
(DIN)
150 PS (148 bhp) (110 kW)
at 5500 rpm
Specific output
(DIN)
59.3 bhp/litre
0.97 bhp/cu in
maximum torque
(DIN)
215 Nm (159 ft·lb) (21.9 kgm)
at 4000 rpm
Specific torque
(DIN)
86.17 Nm/litre
1.04 ft·lb/cu3
Engine construction
sump wet sumped
compression ratio 9.6:1
Fuel system Bosch L-Jetronic fuel injection
bmep (brake mean effective pressure) 1082.9 kPa (157.1 psi)
Maximum RPM
crankshaft bearings 7
Engine coolant Water
Unitary capacity 415.83 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h 9.9 s
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre 31 s
Maximum speed 197 km/h (122 mph)
Power-to-weight ratio 116.32 PS/tonne (1000 kg)
85.55 kW/tonne (1000 kg)
114.73 bhp/tonne (1000 kg)
0.05 bhp/lb
Weight-to-power ratio 11.69 kg/kW
19.52 lb/bhp
fuel consumption
Fuel consumption 8.0/10.0/14.1 l/100km 90 km/h / 120 km/h / urban
universal consumption (calculated from the above)
litres/100km8.0/10.0/14.1 l/100km 90kmph/120kmph/urban
km/litre12.5/10.0/7.1 km/l 90kmph/120kmph/urban
UK MPG35.3/28.2/20.0 UK MPG 90kmph/120kmph/urban
US MPG29.4/23.5/16.7 US MPG 90kmph/120kmph/urban
Carbon dioxide emissions
Carfolio Calculated CO2 ? 290.23 g/km
VED band (UK)
CO2 Effizienz (DE)
chassis
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering
turns lock-to-lock
Turning circle
Front suspension I.MS.CS.LW.LowTrailLi.ARB.
Rear suspension I.STA.CS.
Wheel size front 5½J x 14
Wheel size rear 5½J x 14
Tyres front 175 HR 14
Tyres rear 175 HR 14
Brakes F/R VeDi/Dr-S
Front brake diameter
Rear brake diameter
Braked area
Gearbox 4 speed manual
Top gear ratio 1
Final drive ratio 3.45
general
Carfolio.com ID285142
Production total
Model code
Model family E28
RAC rating 27.5
Insurance classification No information available
Tax band No information available
1981 BMW 525i added 2012-10-01.
Last modified 2013-02-28.