Triumph Spitfire IV (1972) drophead coupé (convertible coupé) - technical specifications of 1972 Triumph Spitfire IV

Triumph Spitfire IV

(1972 model)

Brief specs of 1972 Triumph Spitfire IV

2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, OHV (overhead valve, I-head), 1296 cm³ / 79.1 cu in / 79.1 cu in, 45.5 kW / 61.0 hp / 61.0 hp @ 5500 rpm / 5500 rpm / 5500 rpm, 92.0 N·m / 67.9 lb·ft / 67.9 lb·ft @ 2900 rpm / 2900 rpm / 2900 rpm, manual 4-speed transmission, rear wheel drive, 156 km/h / 97 mph / 97 mph top speed

Marque (make)	Triumph	Issued from	1972
Model	Spitfire IV	Issued until
Serie	Spitfire	Number made
Model family		Body construction
Model code		Body designation
Manufacturer	Triumph	Country	UK

Marque (make)

Triumph

Issued from

1972

Model

Spitfire IV

Issued until

Serie

Spitfire

Number made

Model family

Body construction

Model code

Body designation

Manufacturer

Triumph

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	3786 mm / 149.1 in / 149.1 in	Total (curb) weight	734 kg / 1618 lb / 1618 lb
Width	1488 mm / 58.6 in / 58.6 in	Dry weight
Height	1125 mm / 44.3 in / 44.3 in	Load capacity
Wheelbase	2110 mm / 83.1 in / 83.1 in	Gross (max.) weight
Track front	1245 mm / 49.0 in / 49.0 in	Towing weight
Track rear	1220 mm / 48.0 in / 48.0 in	Weight distribution (front)	56.0 % / 56.0 % / 56.0 %
Ground clearance	127 mm / 5.0 in / 5.0 in	Fuel capacity	38 l / 8.4 UK gal / 10.0 US gal
Length/wheelbase ratio	1.79

Length

3786 mm / 149.1 in / 149.1 in

Total (curb) weight

734 kg / 1618 lb / 1618 lb

Width

1488 mm / 58.6 in / 58.6 in

Dry weight

Height

1125 mm / 44.3 in / 44.3 in

Load capacity

Wheelbase

2110 mm / 83.1 in / 83.1 in

Gross (max.) weight

Track front

1245 mm / 49.0 in / 49.0 in

Towing weight

Track rear

1220 mm / 48.0 in / 48.0 in

Weight distribution (front)

56.0 % / 56.0 % / 56.0 %

Ground clearance

127 mm / 5.0 in / 5.0 in

Fuel capacity

38 l / 8.4 UK gal / 10.0 US gal

Length/wheelbase ratio

1.79

Drag coefficient (Cd, Cx, Cw)		Frontal area (A)	1.42 m² / 15.3 sq ft / 15.3 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)

1.42 m² / 15.3 sq ft / 15.3 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	Triumph	Valves per cylinder	2
Engine construction		Bore	73.7 mm / 2.90 in / 2.90 in
Fuel	petrol (gasoline)	Stroke	76.0 mm / 2.99 in / 2.99 in
Fuel details		Bore/Stroke ratio	0.97
Fuel supply	2 SU carbs	Engine displacement	1296 cm³ / 79.1 cu in / 79.1 cu in
Engine Main bearings	3	Unitary capacity	324.00 cm³/cylinder / 19.772 cu in/cylinder / 19.772 cu in/cylinder
Cam Design	OHV (overhead valve, I-head)	Compression ratio	9.0 : 1
Sump		Max. output power	45.5 kW / 61.0 hp / 61.0 hp at 5500 rpm / 5500 rpm / 5500 rpm
Aspiration	natural	Max. torque	92.0 N·m / 67.9 lb·ft / 67.9 lb·ft at 2900 rpm / 2900 rpm / 2900 rpm
Compressor type	N/A	Maximum rpm
Intercooler	no	Max. net output (power at the wheels)	7.4 kW / 10.0 hp / 10.0 hp (est.)
Coolant	water	Specific output	35.1 kW/l / 0.772 bhp/cu in / 0.772 bhp/cu in
Catalytic converter	no	Specific torque	71.0 N·m/l / 0.62 lb·ft/cu in / 0.62 lb·ft/cu in

Engine Code

Total number of cylinders

Engine Type

straight (inline)

Total number of valves

Engine Manufacturer

Triumph

Valves per cylinder

Engine construction

Bore

73.7 mm / 2.90 in / 2.90 in

Fuel

petrol (gasoline)

Stroke

76.0 mm / 2.99 in / 2.99 in

Fuel details

Bore/Stroke ratio

0.97

Fuel supply

2 SU carbs

Engine displacement

1296 cm³ / 79.1 cu in / 79.1 cu in

Engine Main bearings

Unitary capacity

324.00 cm³/cylinder / 19.772 cu in/cylinder / 19.772 cu in/cylinder

Cam Design

OHV (overhead valve, I-head)

Compression ratio

9.0 : 1

Sump

Max. output power

45.5 kW / 61.0 hp / 61.0 hp at 5500 rpm / 5500 rpm / 5500 rpm

Aspiration

natural

Max. torque

92.0 N·m / 67.9 lb·ft / 67.9 lb·ft at 2900 rpm / 2900 rpm / 2900 rpm

Compressor type

N/A

Maximum rpm

Intercooler

Max. net output (power at the wheels)

7.4 kW / 10.0 hp / 10.0 hp (est.)

Coolant

water

Specific output

35.1 kW/l / 0.772 bhp/cu in / 0.772 bhp/cu in

Catalytic converter

Specific torque

71.0 N·m/l / 0.62 lb·ft/cu in / 0.62 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	3.89

Transmission type

manual

Number of gears

Wheel drive

rear wheel drive

Top gear (drive) ratio

Final gear (drive) ratio

3.89

Acceleration 0-50 mph (80 km/h)	10.00 s / 10.00 s / 10.00 s	Top (maximal) speed	156 km/h / 97 mph / 97 mph
Acceleration 0-60 mph (97 km/h)		Power-to-weight ratio	83.1 kW/ton / 63.0 bhp/ton / 63.0 bhp/ton
Acceleration 0-100 km/h		Fuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)		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)

10.00 s / 10.00 s / 10.00 s

Top (maximal) speed

156 km/h / 97 mph / 97 mph

Acceleration 0-60 mph (97 km/h)

Power-to-weight ratio

83.1 kW/ton / 63.0 bhp/ton / 63.0 bhp/ton

Acceleration 0-100 km/h

Fuel consumption, City (urban)

Acceleration 0-100 mph (160 km/h)

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	rack & pinion	Steering details
Turns lock-to-lock	3.75	Turning circle
Suspension front	Independent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)	Suspension rear	Independent, Swinging semi-axle, Transverse leaf spring
Wheels front		Wheels rear
Tyres front		Tyres rear
Brakes front	disc	Brakes rear	drum
Brake diameter front		Brake diameter rear
Brakes details		Braked area

Engine location

front

Engine alignment

longitudinal

Steering

rack & pinion

Steering details

Turns lock-to-lock

3.75

Turning circle

Suspension front

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

Suspension rear

Independent, Swinging semi-axle, Transverse leaf spring

Wheels front

Wheels rear

Tyres front

Tyres rear

Brakes front

disc

Brakes rear

drum

Brake diameter front

Brake diameter rear

Brakes details

Braked area

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