1961 Triumph TR3B

The Triumph TR3B is a 2 door convertible/cabriolet style motor vehicle with a front positioned engine powering the rear wheels. Power is produced by an overhead valve, 2.1 litre naturally aspirated 4 cylinder motor, with 2 valves per cylinder that produces power and torque figures of 100 bhp (101 PS/75 kW) at 4600 rpm and 172 N·m (127 lb·ft/17.5 kgm) at 3350 rpm respectively. The power is transferred to the wheels by means of a 4 speed manual transmission. The stated weight at the kerb is 904 kg. It is said to be able to achieve a maxiumum speed of 174 km/h (108 mph).
Full specs

Body type
2 door convertible/cabriolet with 2 seats
Length
3835 mm
Weight
904 kg
Engine type
naturally aspirated petrol
Engine size
2.1 litre
Cylinders
4, Straight
Power
101 PS / 100 bhp / 75 kW @ 4600 rpm
Torque
172 Nm / 127 ft.lb / 17.5 kgm @ 3350 rpm
Acceleration
0-60 mph 12.1 s
Top speed
174 km/h / 108 mph

1961 Triumph TR3B specifications

1961 Triumph TR3B data
bodywork
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Body type	2 seater convertible/cabriolet
Number of doors	2
Designer
dimensions & weights
Wheelbase	2238 mm	88.1 inches
Track/tread (front)	1245 mm	49 inches
Track/tread (rear)	1245 mm	49 inches
Length	3835 mm	151 inches
Width	1410 mm	55.5 inches
Height	1270 mm	50 inches
Ground clearance
length:wheelbase ratio	1.71
Kerb weight	904 kg	1993 lb
Weight distribution
fuel tank capacity
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	101 PS (100 bhp) (75 kW) at 4600 rpm
maximum torque	172 Nm (127 ft·lb) (17.5 kgm) at 3350 rpm
Specific output	34.9 kW/litre 47.4 ps/litre 46.8 bhp/litre 0.77 bhp/cu in
Specific torque	80.45 Nm/litre 0.97 ft·lb/cu³
Engine construction
Lubrication
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)
Acceleration 0-60mph	12.1 s
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed	174 km/h (108 mph)
Power-to-weight ratio	Higher is better 112.16 PS/tonne (1000 kg) 0.11 PS/kg 82.49 kW/tonne (1000 kg) 0.08 kW/kg 110.62 bhp/tonne (1000 kg) 0.11 bhp/kg 0.05 bhp/lb
Weight-to-power ratio	Lower is better 12.12 kg/kW 20.25 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
Turning circle
Front suspension
Rear suspension
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox	4 speed manual
Top gear ratio
Final drive ratio
general
Carfolio.com ID	17160
Production total	3331
Model code
RAC rating	18.3
Insurance classification	No information available
Tax band	No information available
1961 Triumph TR3B added before December 1995. Last modified 2013-02-28.