BMW 320i, 1975 MY E21

The BMW 320i is a 2 door saloon (sedan)-bodied automobile designed by Paul Bracq with a front mounted engine powering the rear wheels. The BMW 320i is one of the E21 range of cars from BMW. Its 2 litre engine is a naturally aspirated, single overhead camshaft, 4 cylinder that develops 123 bhp (125 PS/92 kW) of power at 5700 rpm, and maximum torque of 175 N·m (129 lb·ft/17.8 kgm) at 4350 rpm. The engine transfers its power through to the wheels via a 4 speed manual gearbox. Stated weight at the kerb is 1050 kg. Top quoted speed is 180 km/h (112 mph).

Pictures

Key facts

BMW 320i, 1975 MY E21 information summary

What body style?
2 door sedan/saloon with 4/5 seats
How long?
4355 mm
How heavy?
1050 kg
What size engine?
2 litre, 1991 cm3
How many cylinders?
4, Straight
How much power?
125 PS / 123 bhp / 92 kW @ 5700 rpm
How much torque?
175 Nm / 129 ft.lb / 17.8 kgm @ 4350 rpm
How quick?
0-100 km/h: 9.9 s
How fast?
180 km/h, 112 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
BMW 323i -
2 door sedan/​saloon FR 5M 2316 cm3 143 PS 141 bhp 105 kW 1135 kg
2 door sedan/​saloon FR 4M 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
BMW 320 -
2 door sedan/​saloon FR 4M 1991 cm3 109 PS 107.5 bhp 80 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 112 PS 110 bhp 82 kW 1182 kg

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1975 BMW 320i 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) 1386 mm 54.6 inches
Track/tread (rear) 1399 mm 55.1 inches
Length 4355 mm 171.5 inches
Width 1610 mm 63.4 inches
Height 1380 mm 54.3 inches
Ground clearance
length:wheelbase ratio 1.7
Kerb weight 1050 kg 2315 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)
125 PS (123 bhp) (92 kW)
at 5700 rpm
Specific output
(DIN)
61.8 bhp/litre
1.01 bhp/cu in
maximum torque
(DIN)
175 Nm (129 ft·lb) (17.8 kgm)
at 4350 rpm
Specific torque
(DIN)
87.9 Nm/litre
1.06 ft·lb/cu3
Engine construction
sump wet sumped
compression ratio 9.3:1
Fuel system Bosch K-Jetronic fuel injection
bmep (brake mean effective pressure) 1104.5 kPa (160.2 psi)
Maximum RPM
crankshaft bearings 5
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 9.9 s
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed 180 km/h (112 mph)
Power-to-weight ratio 118.77 PS/tonne (1000 kg)
87.35 kW/tonne (1000 kg)
117.14 bhp/tonne (1000 kg)
0.05 bhp/lb
Weight-to-power ratio 11.45 kg/kW
19.12 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
turns lock-to-lock
Turning circle
Front suspension
Rear suspension
Wheel size front 5½J x 13 H2
Wheel size rear 5½J x 13 H2
Tyres front 185/70 HR 13
Tyres rear 185/70 HR 13
Brakes F/R VeDi/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 3.64
general
Carfolio.com ID319264
Production total
Model code
Model family E21
RAC rating 19.6
Insurance classification No information available
Tax band No information available
1975 BMW 320i added 2013-03-01.
Last modified 2013-06-19.