1971 Mazda 818 Coupé

The 818 Coupé is a rear wheel drive coupé motor car with a front mounted engine, from Mazda. Its 4 cylinder, single overhead camshaft naturally aspirated engine has 2 valves per cylinder and a displacement of 1.3 litres. For this model it develops power and torque figures of 80 bhp (81 PS/60 kW) at 5500 rpm and 124 Nm (91 lbft/12.6 kgm) at 3500 rpm respectively. The power is delivered to the wheels via a 4 speed manual gearbox. It weighs a quoted 810 kg at the kerb.

Pictures

Key facts

1971 Mazda 818 Coupé information summary

What body style?
fixed-head coupé with 2+2 seats
How long?
3962 mm
How heavy?
810 kg
What size engine?
1.3 litre, 1272 cm3
How many cylinders?
4, Straight
How much power?
81 PS / 80 bhp / 60 kW @ 5500 rpm
How much torque?
124 Nm / 91 ft.lb / 12.6 kgm @ 3500 rpm

Mazda 818 models

sedan/​saloon FR 4M 1272 cm3 81 PS 80 bhp 60 kW 810 kg
sedan/​saloon FR 4M 1272 cm3 81 PS 80 bhp 60 kW 875 kg

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Saab Sonett III -
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1971 Mazda 818 Coupé data
bodywork
Body type2+2 seater fixed-head coupé
Number of doors
Designer
dimensions & weights
Wheelbase 2286 90
Track/tread (front)
Track/tread (rear)
Length 3962 156
Width 1600 63
Height 1346 53
Ground clearance
length:wheelbase ratio 1.73
Kerb weight 810 kg 1786
Weight distribution
fuel tank capacity
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer Mazda
Engine code
Cylinders Straight 4
Capacity 1.3 litre
1272 cc
(77.622 cu in)
Bore × Stroke 73 × 76 mm
2.87 × 2.99 in
Bore/stroke ratio 0.96
Valve gear single overhead camshaft (SOHC)
2 valves per cylinder
8 valves in total
maximum power output
(SAE)
81 PS (80 bhp) (60 kW)
at 5500 rpm
Specific output
(SAE)
62.9 bhp/litre
1.03 bhp/cu in
maximum torque
(SAE)
124 Nm (91 ft·lb) (12.6 kgm)
at 3500 rpm
Specific torque
(SAE)
97.48 Nm/litre
1.18 ft·lb/cu3
Engine construction
sump
compression ratio 9.2:1
Fuel system 1 Hitachi carb
bmep (brake mean effective pressure) 1225 kPa (177.7 psi)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 318 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed
Power-to-weight ratio 100.14 PS/tonne (1000 kg)
73.65 kW/tonne (1000 kg)
98.77 bhp/tonne (1000 kg)
0.04 bhp/lb
Weight-to-power ratio 13.58 kg/kW
22.68 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 unknown
Drive wheels rear wheel drive  
Torque split N/A
Steering
turns lock-to-lock
Turning circle
Front suspension I.CS.
Rear suspension LA.SE.
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R Di/Dr
Front brake diameter
Rear brake diameter
Braked area
Gearbox 4
Top gear ratio 1
Final drive ratio 4.11
general
Carfolio.com ID62172
Production total
Model code
Model family
RAC rating 13.2
Insurance classification No information available
Tax band No information available
1971 Mazda 818 Coupé added before December 1995.
Last modified 2013-02-28.