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  • Triumph TR4

    Triumph TR4 -

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Key facts

1961 Triumph TR4 information summary

What body style?
convertible/cabriolet with 2 seats
How long?
3962 mm
How heavy?
966 kg
What size engine?
2.1 litre, 2138 cm3
How many cylinders?
4, Straight
How much power?
101 PS / 100 bhp / 75 kW @ 4600 rpm
How much torque?
172 Nm / 127 ft.lb / 17.5 kgm @ 3350 rpm
How quick?
0-60 mph: 10.90 s
How fast?
165 km/h, 103 mph

Triumph

Triumph logo -

Triumph logo

1961 Triumph TR4 technical specifications

Introduction

The Triumph TR4 is a convertible/cabriolet with 2 doors and a front mounted engine which delivers the power to the rear wheels.
Its engine is a naturally aspirated petrol, 2.1 litre, overhead valve 4 cylinder with 2 valves per cylinder. It develops 100 bhp (101 PS/75 kW) of power at 4600 rpm, and maximum torque of 172 N·m (127 lb·ft/17.5 kgm) at 3350 rpm.
A 4 speed manual gearbox transfers the power to the driven wheels.
Having a stated kerb weight of 966 kg, the Triumph TR4 manages to cover the 0-60 mph sprint in 10.9 seconds and the quarter mile from rest in 17.8 seconds.
Maximum stated speed is 165 km/h (103 mph).
1961 Triumph TR4 data
1961 Triumph TR4 data
bodywork
Body type2 seater convertible/cabriolet
Number of doors2
Designer
dimensions & weights
mminches
Wheelbase 2238 88.1
Track/tread (front) 1245 49
Track/tread (rear) 1219 48
Length 3962 156
Width 1461 57.5
Height 1270 50
Ground clearance 152 6
length:wheelbase ratio 1.77
Kerb weight 966 kg 2130 lb
Weight distribution
fuel tank capacity 53.4 litres 11.7 UK Gal 14.1 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer Triumph
Engine code
Cylinders Straight 4
Capacity 2.1 litre
2138 cc
(130.469 cu in)
Bore × Stroke 86 × 92 mm
3.39 × 3.62 in
Bore/stroke ratio 0.93
overhead valve (OHV)
2 valves per cylinder
8 valves in total
maximum power output
(Net)
101 PS (100 bhp) (75 kW)
at 4600 rpm
Specific output
(Net)
46.8 bhp/litre
0.77 bhp/cu in
maximum torque
(Net)
172 Nm (127 ft·lb) (17.5 kgm)
at 3350 rpm
Specific torque
(Net)
80.45 Nm/litre
0.97 ft·lb/cu3
Engine construction
sump
compression ratio 9:1
Fuel system 2 SU carbs
bmep (brake mean effective pressure) 1011 kPa (146.6 psi)
Maximum RPM
crankshaft bearings 5
Engine coolant Water
Unitary capacity 534.5 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph) 8.30 s
Acceleration 0-60mph 10.90 s
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile 17.80 s
Standing kilometre
Maximum speed 165 km/h (103 mph)
Power-to-weight ratio 104.96 PS/g
77.19 kW/g
103.52 bhp/ton
0.05 bhp/lb
Weight-to-power ratio 12.95 kg/kW
21.64 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres per 100km
km per 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 2.500
Turning circle 10.40 m
Front suspension I.CS.
Rear suspension LA.SE.
Wheel size front
Wheel size rear
Tyres front 5.50-15
Tyres rear 5.50-15
Brakes F/R Di/Dr
Front brake diameter
Rear brake diameter
Gearbox 4 speed manual
Top gear ratio 1.00
Final drive ratio 3.70
general
Carfolio.com ID55737
Production total
Model code
Model family
RAC rating 18.3
Insurance classification No information available
Tax band No information available
1961 Triumph TR4 added before December 1995.
Last modified 2013-02-28.

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1961 Triumph TR4


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