1951 Jowett Jupiter R1

Jowett Jupiter R1 is a car that has a 2 door convertible/cabriolet type body with a front mounted engine powering the rear wheels. The Jowett Jupiter R1's engine is a naturally aspirated petrol, 1.5 litre, overhead valve 4 cylinder with 2 valves per cylinder. This powerplant produces 70 bhp (71 PS/52 kW) of power at 5000 rpm. Quoted weight at the kerb is 686 kg. Top stated speed is 161 km/h (100 mph).

Pictures

Key facts

1951 Jowett Jupiter R1 information summary

What body style?
2 door convertible/cabriolet with 2 seats
How long?
4343 mm
How heavy?
686 kg
What size engine?
1.5 litre, 1486 cm3
How many cylinders?
4, Flat
How much power?
71 PS / 70 bhp / 52 kW @ 5000 rpm
How much torque?
Unknown
How fast?
161 km/h, 100 mph

Jowett Jupiter models

Jowett Jupiter  -
2 door convertible/​cabriolet FR 4M 1486 cm3 63 PS 62.5 bhp 47 kW 860 kg

Similar models

2 door convertible/​cabriolet FR 3M 2262 cm3 69 PS 68 bhp 51 kW 889 kg
2 door convertible/​cabriolet FR 4M 1466 cm3 949 kg
2 door convertible/​cabriolet FR 4M 2088 cm3 69 PS 68 bhp 51 kW 838 kg
2 door convertible/​cabriolet FR 4M 1394 cm3 65 PS 64 bhp 48 kW 880 kg
1951 Jowett Jupiter R1 data
bodywork
Body type2 seater convertible/cabriolet
Number of doors2
Designer
dimensions & weights
Wheelbase 2362 93
Track/tread (front) 1321 52
Track/tread (rear) 1321 52
Length 4343 171
Width 1575 62
Height
Ground clearance
length:wheelbase ratio 1.84
Kerb weight 686 kg 1512
Weight distribution
fuel tank capacity
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer Jowett
Engine code
Cylinders Flat 4
Capacity 1.5 litre
1486 cc
(90.681 cu in)
Bore × Stroke 72.5 × 90 mm
2.85 × 3.54 in
Bore/stroke ratio 0.81
Valve gear overhead valve (OHV)
2 valves per cylinder
8 valves in total
maximum power output 71 PS (70 bhp) (52 kW)
at 5000 rpm
Specific output 47.1 bhp/litre
0.77 bhp/cu in
maximum torque
Specific torque
Engine construction
sump
compression ratio 9.25:1
Fuel system 2 Ze carbs
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings
Engine coolant Water
Unitary capacity 371.5 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph) -1.00 s
Standing quarter-mile
Standing kilometre
Maximum speed 161 km/h (100 mph)
Power-to-weight ratio 103.46 PS/tonne (1000 kg)
76.09 kW/tonne (1000 kg)
102.04 bhp/tonne (1000 kg)
0.05 bhp/lb
Weight-to-power ratio 13.14 kg/kW
21.95 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres/100km
km/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
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
Top gear ratio 1
Final drive ratio 4.10
general
Carfolio.com ID63778
Production total
Model code
Model family
RAC rating 13.0
Insurance classification No information available
Tax band No information available
1951 Jowett Jupiter R1 added before December 1995.
Last modified 2013-02-28.