Austin-Healey 100S (1955) drophead coupé (convertible coupé) - technical specifications of 1955 Austin-Healey 100S

(1955 model)

Brief specs of 1955 Austin-Healey 100S

2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, OHV (overhead valve, I-head), 2660 cm³ / 162.3 cu in / 162.3 cu in, 98.4 kW / 132.0 hp / 132.0 hp @ 4750 rpm / 4750 rpm / 4750 rpm, 228.0 N·m / 168.2 lb·ft / 168.2 lb·ft @ 2500 rpm / 2500 rpm / 2500 rpm, manual 4-speed transmission, rear wheel drive, 190 km/h / 118 mph / 118 mph top speed

Marque (make)	Austin-Healey	Issued from	1955
Model	100S	Issued until
Serie	100	Number made	50
Model family		Body construction
Model code		Body designation
Manufacturer	Austin-Healey	Country	UK

Marque (make)

Austin-Healey

Issued from

1955

Model

100S

Issued until

Serie

100

Number made

Model family

Body construction

Model code

Body designation

Manufacturer

Austin-Healey

Country

Base platform		Number of doors	2
Bodywork type	drophead coupé (convertible coupé)	Number of seats	2
Bodywork designer		Cargo capacity (volume)
Passenger space (volume)		Max. cargo capacity (volume)

Base platform

Number of doors

Bodywork type

drophead coupé (convertible coupé)

Number of seats

Bodywork designer

Cargo capacity (volume)

Passenger space (volume)

Max. cargo capacity (volume)

Length	3759 mm / 148.0 in / 148.0 in	Total (curb) weight	851 kg / 1876 lb / 1876 lb
Width	1537 mm / 60.5 in / 60.5 in	Dry weight
Height	1067 mm / 42.0 in / 42.0 in	Load capacity
Wheelbase	2286 mm / 90.0 in / 90.0 in	Gross (max.) weight
Track front	1289 mm / 50.7 in / 50.7 in	Towing weight
Track rear	1289 mm / 50.7 in / 50.7 in	Weight distribution (front)	51.0 % / 51.0 % / 51.0 %
Ground clearance	140 mm / 5.5 in / 5.5 in	Fuel capacity	109 l / 24.0 UK gal / 28.8 US gal
Length/wheelbase ratio	1.64

Length

3759 mm / 148.0 in / 148.0 in

Total (curb) weight

851 kg / 1876 lb / 1876 lb

Width

1537 mm / 60.5 in / 60.5 in

Dry weight

Height

1067 mm / 42.0 in / 42.0 in

Load capacity

Wheelbase

2286 mm / 90.0 in / 90.0 in

Gross (max.) weight

Track front

1289 mm / 50.7 in / 50.7 in

Towing weight

Track rear

1289 mm / 50.7 in / 50.7 in

Weight distribution (front)

51.0 % / 51.0 % / 51.0 %

Ground clearance

140 mm / 5.5 in / 5.5 in

Fuel capacity

109 l / 24.0 UK gal / 28.8 US gal

Length/wheelbase ratio

1.64

Drag coefficient (Cd, Cx, Cw)		Frontal area (A)	1.39 m² / 15.0 sq ft / 15.0 sq ft (est.)
Aerodynamic coefficient (Cd×A)		Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Drag coefficient (Cd, Cx, Cw)

Frontal area (A)

1.39 m² / 15.0 sq ft / 15.0 sq ft (est.)

Aerodynamic coefficient (Cd×A)

Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine Code		Total number of cylinders	4
Engine Type	straight (inline)	Total number of valves	8
Engine Manufacturer	Austin	Valves per cylinder	2
Engine construction		Bore	87.3 mm / 3.44 in / 3.44 in
Fuel	petrol (gasoline)	Stroke	111.1 mm / 4.37 in / 4.37 in
Fuel details		Bore/Stroke ratio	0.79
Fuel supply	2 SU H6 carbs	Engine displacement	2660 cm³ / 162.3 cu in / 162.3 cu in
Engine Main bearings	3	Unitary capacity	665.00 cm³/cylinder / 40.581 cu in/cylinder / 40.581 cu in/cylinder
Cam Design	OHV (overhead valve, I-head)	Compression ratio	8.3 : 1
Sump	wet	Max. output power	98.4 kW / 132.0 hp / 132.0 hp at 4750 rpm / 4750 rpm / 4750 rpm
Aspiration	natural	Max. torque	228.0 N·m / 168.2 lb·ft / 168.2 lb·ft at 2500 rpm / 2500 rpm / 2500 rpm
Compressor type	N/A	Maximum rpm
Intercooler	no	Max. net output (power at the wheels)	40.0 kW / 53.7 hp / 53.7 hp (est.)
Coolant	water	Specific output	37.0 kW/l / 0.813 bhp/cu in / 0.813 bhp/cu in
Catalytic converter	no	Specific torque	85.7 N·m/l / 0.75 lb·ft/cu in / 0.75 lb·ft/cu in

Engine Code

Total number of cylinders

Engine Type

straight (inline)

Total number of valves

Engine Manufacturer

Austin

Valves per cylinder

Engine construction

Bore

87.3 mm / 3.44 in / 3.44 in

Fuel

petrol (gasoline)

Stroke

111.1 mm / 4.37 in / 4.37 in

Fuel details

Bore/Stroke ratio

0.79

Fuel supply

2 SU H6 carbs

Engine displacement

2660 cm³ / 162.3 cu in / 162.3 cu in

Engine Main bearings

Unitary capacity

665.00 cm³/cylinder / 40.581 cu in/cylinder / 40.581 cu in/cylinder

Cam Design

OHV (overhead valve, I-head)

Compression ratio

8.3 : 1

Sump

wet

Max. output power

98.4 kW / 132.0 hp / 132.0 hp at 4750 rpm / 4750 rpm / 4750 rpm

Aspiration

natural

Max. torque

228.0 N·m / 168.2 lb·ft / 168.2 lb·ft at 2500 rpm / 2500 rpm / 2500 rpm

Compressor type

N/A

Maximum rpm

Intercooler

Max. net output (power at the wheels)

40.0 kW / 53.7 hp / 53.7 hp (est.)

Coolant

water

Specific output

37.0 kW/l / 0.813 bhp/cu in / 0.813 bhp/cu in

Catalytic converter

Specific torque

85.7 N·m/l / 0.75 lb·ft/cu in / 0.75 lb·ft/cu in

Transmission type	manual	Number of gears	4
Wheel drive	rear wheel drive	Top gear (drive) ratio	1
		Final gear (drive) ratio	2.92

Transmission type

manual

Number of gears

Wheel drive

rear wheel drive

Top gear (drive) ratio

Final gear (drive) ratio

2.92

Acceleration 0-50 mph (80 km/h)	5.60 s / 5.60 s / 5.60 s	Top (maximal) speed	190 km/h / 118 mph / 118 mph
Acceleration 0-60 mph (97 km/h)	7.80 s / 7.80 s / 7.80 s	Power-to-weight ratio	155.1 kW/ton / 117.5 bhp/ton / 117.5 bhp/ton
Acceleration 0-100 km/h		Fuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)	24.40 s / 24.40 s / 24.40 s	Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in top		Fuel consumption, Mixed (combined)
Standing ¼mile time		Fuel consumption, Euro
Standing kilometer time		CO₂ emissions
		Range

Acceleration 0-50 mph (80 km/h)

5.60 s / 5.60 s / 5.60 s

Top (maximal) speed

190 km/h / 118 mph / 118 mph

Acceleration 0-60 mph (97 km/h)

7.80 s / 7.80 s / 7.80 s

Power-to-weight ratio

155.1 kW/ton / 117.5 bhp/ton / 117.5 bhp/ton

Acceleration 0-100 km/h

Fuel consumption, City (urban)

Acceleration 0-100 mph (160 km/h)

24.40 s / 24.40 s / 24.40 s

Fuel consumption, Road (extra-urban)

Acceleration 80-120 km/h (50-70 mph) in top

Fuel consumption, Mixed (combined)

Standing ¼mile time

Fuel consumption, Euro

Standing kilometer time

CO₂ emissions

Range

Engine location	front	Engine alignment	longitudinal
Steering	cam & peg	Steering details
Turns lock-to-lock		Turning circle	10.7 m / 35.1 ft / 35.1 ft
Suspension front	Independent, Coil springs, Wishbone (A-arm, control arm), Anti-roll (anti-sway) bar (ARB)	Suspension rear	Live axle, Semi-elliptic leaf springs
Wheels front		Wheels rear
Tyres front	5.50 x 15	Tyres rear	5.50 x 15
Brakes front	disc	Brakes rear	disc
Brake diameter front	292 mm / 11.5 in / 11.5 in	Brake diameter rear	292 mm / 11.5 in / 11.5 in
Brakes details		Braked area

Engine location

front

Engine alignment

longitudinal

Steering

cam & peg

Steering details

Turns lock-to-lock

Turning circle

10.7 m / 35.1 ft / 35.1 ft

Suspension front

Independent, Coil springs, Wishbone (A-arm, control arm), Anti-roll (anti-sway) bar (ARB)

Suspension rear

Live axle, Semi-elliptic leaf springs

Wheels front

Wheels rear

Tyres front

5.50 x 15

Tyres rear

5.50 x 15

Brakes front

disc

Brakes rear

disc

Brake diameter front

292 mm / 11.5 in / 11.5 in

Brake diameter rear

292 mm / 11.5 in / 11.5 in

Brakes details

Braked area

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