1975 BMW 320 E21

The BMW 320 is a rear wheel drive vehicle, with its engine positioned in the front, and a 2 door saloon (sedan) body designed by Paul Bracq. It is part of BMW's E21 series. The power is produced by a naturally aspirated engine of 2 litre capacity. This unit features single overhead camshaft valve gear, 4 cylinder layout, and 2 valves per cylinder. It produces 107.5 bhp (109 PS/80 kW) of power at 5800 rpm, and maximum torque of 157 N·m (116 lb·ft/16 kgm) at 3700 rpm. The power is transmitted to the wheels via a 4 speed manual gearbox. Claimed weight at the kerb is 1030 kg. Maximum claimed speed is 170 km/h (106 mph).

Pictures

BMW 320 -
BMW 320
Image courtesy of BMW

Key facts

1975 BMW 320 E21 information summary

What body style?
2 door sedan/saloon with 4/5 seats
How long?
4355 mm
How heavy?
1030 kg
What size engine?
2 litre, 1991 cm3
How many cylinders?
4, Straight
How much power?
109 PS / 107.5 bhp / 80 kW @ 5800 rpm
How much torque?
157 Nm / 116 ft.lb / 16 kgm @ 3700 rpm
How quick?
0-100 km/h: 11.2 s
How fast?
170 km/h, 106 mph

BMW E21 models

2 door sedan/​saloon FR 4M 1574 cm3 75 PS 74 bhp 55 kW 1010 kg
2 door sedan/​saloon FR 4M 1767 cm3 105 PS 103.5 bhp 77 kW 1030 kg
2 door sedan/​saloon FR 3A 1767 cm3 105 PS 103.5 bhp 77 kW 1040 kg
2 door sedan/​saloon FR 4M 2316 cm3 143 PS 141 bhp 105 kW 1135 kg
BMW 323i -
2 door sedan/​saloon FR 5M 2316 cm3 143 PS 141 bhp 105 kW 1135 kg
2 door sedan/​saloon FR A 2316 cm3 143 PS 141 bhp 105 kW 1150 kg
BMW 320 -
2 door sedan/​saloon FR 5M 1991 cm3 122 PS 120 bhp 89 kW 1115 kg
2 door sedan/​saloon FR A 1991 cm3 122 PS 120 bhp 89 kW 1130 kg
BMW 316 -
2 door sedan/​saloon FR 4M 1574 cm3 90 PS 89 bhp 66 kW 1020 kg
2 door sedan/​saloon FR 4M 1766 cm3 98 PS 97 bhp 72 kW 1010 kg
2 door sedan/​saloon FR 3A 1766 cm3 98 PS 97 bhp 72 kW 1030 kg
2 door sedan/​saloon FR 3A 1991 cm3 109 PS 107.5 bhp 80 kW 1050 kg
2 door sedan/​saloon FR 4M 1991 cm3 125 PS 123 bhp 92 kW 1050 kg
2 door sedan/​saloon FR 4M 1991 cm3 112 PS 110 bhp 82 kW 1182 kg

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1975 BMW 320 data
bodywork
Body type4/5 seater sedan/saloon
Number of doors2
DesignerPaul Bracq
dimensions & weights
mminches
Wheelbase 2563 mm 100.9 inches
Track/tread (front) 1364 mm 53.7 inches
Track/tread (rear) 1377 mm 54.2 inches
Length 4355 mm 171.5 inches
Width 1610 mm 63.4 inches
Height 1380 mm 54.3 inches
Ground clearance 146 mm 5.7 inches
length:wheelbase ratio 1.7
Kerb weight 1030 kg 2271 lb
Weight distribution
fuel tank capacity 52 litres 11.4 UK Gal 13.7 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer BMW
Engine code
Cylinders Straight 4
Capacity 2 litre
1991 cc
(121.498 cu in)
Bore × Stroke 89 × 80 mm
3.5 × 3.15 in
Bore/stroke ratio 1.11
Valve gear single overhead camshaft (SOHC)
2 valves per cylinder
8 valves in total
maximum power output
(DIN)
109 PS (107.5 bhp) (80 kW)
at 5800 rpm
Specific output
(DIN)
54 bhp/litre
0.88 bhp/cu in
maximum torque
(DIN)
157 Nm (116 ft·lb) (16 kgm)
at 3700 rpm
Specific torque
(DIN)
78.85 Nm/litre
0.95 ft·lb/cu3
Engine construction
sump wet sumped
compression ratio 8.1:1
Fuel system Solex 32 DIDTA carburettor
bmep (brake mean effective pressure) 990.9 kPa (143.7 psi)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 497.75 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h 11.2 s
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed 170 km/h (106 mph)
Power-to-weight ratio 105.82 PS/tonne (1000 kg)
77.83 kW/tonne (1000 kg)
104.37 bhp/tonne (1000 kg)
0.05 bhp/lb
Weight-to-power ratio 12.85 kg/kW
21.46 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
chassis
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering rack & pinion
turns lock-to-lock
Turning circle
Front suspension I.MS.CS.
Rear suspension I.STA.CS.
Wheel size front 5J x 13 H2
Wheel size rear 5J x 13 H2
Tyres front 165 SR 13
Tyres rear 165 SR 13
Brakes F/R Di/Dr-S
Front brake diameter 255 mm
Rear brake diameter 250 mm
Braked area
Gearbox 4 speed manual
Top gear ratio 1
Final drive ratio 3.90
general
Carfolio.com ID56122
Production total
Model code
Model family E21
RAC rating 19.6
Insurance classification No information available
Tax band No information available
1975 BMW 320 added before December 1995.
Last modified 2013-06-19.