1965 Triumph TR4A

The Triumph TR4A is a convertible/cabriolet with 2 doors and a front mounted powerplant which transmits its power through the rear wheels. The Triumph TR4A's engine is a naturally aspirated petrol, 2.1 litre, overhead valve 4 cylinder with 2 valves per cylinder. In this application it produces 104 bhp (105 PS/78 kW) of power at 4700 rpm, and maximum torque of 179 N·m (132 lb·ft/18.3 kgm) at 3000 rpm. A 4 speed manual gearbox transfers the power to the wheels. It weighs a claimed 1016 kg at the kerb. It is claimed to manage a top speed of 175 km/h, or 109 mph.
Full specs

Body type
2 door convertible/cabriolet with 2 seats
Length
3962 mm
Weight
1016 kg
Engine type
naturally aspirated petrol
Engine size
2.1 litre
Cylinders
4, Straight
Power
105 PS / 104 bhp / 78 kW @ 4700 rpm
Torque
179 Nm / 132 ft.lb / 18.3 kgm @ 3000 rpm
Top speed
175 km/h / 109 mph

1965 Triumph TR4A specifications

1965 Triumph TR4A data
bodywork
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Body type	2 seater convertible/cabriolet
Number of doors	2
Designer
dimensions & weights
Wheelbase	2235 mm	88 inches
Track/tread (front)	1245 mm	49 inches
Track/tread (rear)	1232 mm	48.5 inches
Length	3962 mm	156 inches
Width	1473 mm	58 inches
Height	1207 mm	47.5 inches
Ground clearance	152 mm	6 inches
length:wheelbase ratio	1.77
Kerb weight	1016 kg	2240 lb
Weight distribution
fuel tank capacity	53.4 litres	11.7 [14.1] UK [US] gal.
aerodynamics
Drag coefficient
Frontal area
CdA
Powertrain
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
Valve gear	overhead valve (OHV) 2 valves per cylinder 8 valves in total
maximum power output (Net)	105 PS (104 bhp) (78 kW) at 4700 rpm
maximum torque (Net)	179 Nm (132 ft·lb) (18.3 kgm) at 3000 rpm
Specific output (Net)	36.3 kW/litre 49.3 ps/litre 48.6 bhp/litre 0.8 bhp/cu in
Specific torque (Net)	83.72 Nm/litre 1.01 ft·lb/cu³
Engine construction
Lubrication
compression ratio	9:1
Fuel system	2 St carbs
bmep (brake mean effective pressure)	1052.1 kPa (152.6 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)	8.3 s
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile	18.5 s
Standing kilometre
Maximum speed	175 km/h (109 mph)
Power-to-weight ratio	Higher is better 103.79 PS/tonne (1000 kg) 0.1 PS/kg 76.33 kW/tonne (1000 kg) 0.08 kW/kg 102.36 bhp/tonne (1000 kg) 0.1 bhp/kg 0.05 bhp/lb
Weight-to-power ratio	Lower is better 13.1 kg/kW 21.88 lb/bhp
fuel consumption
Fuel consumption
universal fuel consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
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	I.CS.
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R	Di/Dr
Front brake diameter
Rear brake diameter
Braked area	2142 cm²
Gearbox	4 speed manual
Top gear ratio	1
Final drive ratio	3.70
general
Carfolio.com ID	55693
Production total
Model code
RAC rating	18.3
Insurance classification	No information available
Tax band	No information available
1965 Triumph TR4A added 1996-11-23. Last modified 2013-02-28.