Sunbeam Rapier Series I Twin Carb

Sunbeam Rapier Series I Twin Carb - key facts

First introduced in 1956, the Sunbeam Rapier Series I Twin Carb ended production in 1958.
The 4 cylinder engine acheived a maximum power of 67 bhp.
60mph was reached in 19.4 seconds.
Maximum speed of the Sunbeam Rapier Series I Twin Carb was 85 mph.
A total of 7,477 units were manufactured ((Singe and Twin Carb versions)).

Sunbeam Rapier Series I Twin Carb Specifications
Production	7,477 (Singe and Twin Carb versions)
From	1956
Until	1958
Bodywork
Body Style	Saloon
Dimensions
Length	13ft 4in	4m
Width	5ft 03/4in	1.54m
Front Track	4ft 0in	1.24m
Rear Track	4ft 0in	1.24m
Kerb Weight	2280lb/1ton	1034kg
Engine
Engine displacement	1390cc	85cu in
Bore	3in	76.2mm
Stroke	3in	76.2mm
Cylinders	4
Cylinder Layout	Inline
Valve operation	Overhead valve
Compression ratio	8:1
Power Output	67bhp @ 5400rpm	66PS @ 5400rpm
Specific Output	48bhp/litre	0.79bhp/cu in
Torque Output	74lbft @ 3000rpm	100Nm @ 3000rpm
Specific Torque	72Nm/litre
Fuel Type	Petrol
Fuel system	Single Carburettor
Performance
Power to weight	66bhp/ton
Acceleration 0-50mph	13 seconds
Acceleration 0-60mph	19.4 seconds
Standing Qtr mile	21.5 seconds
Top speed	85mph	137km/h
Fuel consumption	30mpg	13km/l
Chassis
Engine location	Front
Engine alignment	Longitudinal
Driven wheels	Rear
Front Suspension	Independent Coil Spring
Rear Suspension	Beam axle half eliptic leaf
Brakes	Drums front and rear
Gearbox type	4 speed Manual with Overdrive option
Number of gears	4