1952 Jowett Jupiter Mk IA Convertible

The Jowett Jupiter Mk IA Convertible is a convertible/cabriolet with 2 doors and a front mounted engine which delivers the power through the rear wheels. The power is produced by a naturally aspirated engine of 1.5 litre capacity. This unit features overhead valve valve gear, 4 cylinder layout, and 2 valves per cylinder. It has an output of 62.5 bhp (63 PS/47 kW) of power at 4500 rpm, and maximum torque of 114 N·m (84 lb·ft/11.6 kgm) at 3000 rpm. A 4 speed manual gearbox supplies the power to the driven wheels. The stated kerb weight is 860 kg. Its maximum speed stated is 136 km/h or 85 mph.

Pictures

Jowett Jupiter  -
Jowett Jupiter
Image courtesy of Edmund Nankivell

Key facts

1952 Jowett Jupiter Mk IA Convertible information summary

What body style?
2 door convertible/cabriolet with 2 seats
How long?
4267 mm
How heavy?
860 kg
What size engine?
1.5 litre, 1486 cm3
How many cylinders?
4, Flat
How much power?
63 PS / 62.5 bhp / 47 kW @ 4500 rpm
How much torque?
114 Nm / 84 ft.lb / 11.6 kgm @ 3000 rpm
How quick?
0-60 mph: 16.8 s
How fast?
136 km/h, 85 mph

Jowett Jupiter models

2 door convertible/​cabriolet FR 1486 cm3 71 PS 70 bhp 52 kW 686 kg

Similar models

2 door convertible/​cabriolet FR 4M 1466 cm3 949 kg
2 door convertible/​cabriolet FR 4M 1758 cm3 60 PS 59 bhp 44 kW 1115 kg
2 door convertible/​cabriolet FR 4M 1250 cm3 58 PS 57.5 bhp 43 kW
2 door convertible/​cabriolet FR 4M 1466 cm3 66 PS 65 bhp 48 kW 912 kg
1952 Jowett Jupiter Mk IA Convertible
Carrosserie
Carrosserie2 seater convertible/cabriolet
Nombre de portes2
Designer
Dimensions et poids
Empattement 2362 93
Voies AV 1321 52
Voies AR 1283 50.5
Longueur 4267 168
Largeur 1575 62
Hauteur 1422 56
Garde au sol
1.81
Poids avec pleins 860 kg 1896
Répartition poids AV 56.1 % front
Réservoir à essence
Caractéristiques aérodynamique
Coefficient de pénétration
maître-couple 1.58
SCx
Moteur
naturally aspirated petrol
Constructeur du moteur Jowett
Type moteur
Cylinders Flat 4
Cylindrée 1.5 litre
1486 cc
(90.681 cu in)
Alésage × Course 72.5 × 90 mm
2.85 × 3.54 in
Rapport alésage / course 0.81
Distribution overhead valve (OHV)
2 Soupapes par cylindre
8 Total vannes
Puissance maximale 63 PS (62.5 bhp) (47 kW)
à 4500 tr/mn
Specific output 42.1 bhp/litre
0.69 bhp/cu in
Couple maximale 114 Nm (84 ft·lb) (11.6 kgm)
à 3000 tr/mn
76.72 Nm/litre
0.93 ft·lb/cu3
Construction
carter
Taux de compression 8:1
Carburant 2 Ze carbs
bmep (brake mean effective pressure) 964 kPa (139.8 psi)
Régime maximal
Nombre de paliers de vilebrequin
Refroidissement Water
Cylindrée Unitaire 371.5 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalyseur N
Performances
0-80km/h 11.7 s
0-60mph 16.8 s
0-100km/h
0-160km/h -1.00 s
0-400m 20.7 s
0-1000m
Vitesse 136 km/h (85 mph)
Power-to-weight ratio 73.68 PS/tonne (1000 kg)
54.19 kW/tonne (1000 kg)
72.67 bhp/tonne (1000 kg)
0.03 bhp/lb
Weight-to-power ratio 18.45 kg/kW
30.82 lb/bhp
Consommation
Consommation
universal consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Emissions de CO₂
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Châssis
Emplacement de moteur front
Engine layout longitudinal
Traction rear wheel drive  
Répartition du couple N/A
Direction
turns lock-to-lock
Turning circle
Suspension AV I.TB.
Suspension AR LA.TB.
Roues AV
Roues AR
Pneumatiques AV
Pneumatiques AR
Freins AV/AR
Diamètre des freins AV
Diamètre des freins AR
Braked area
Transmission 4
Rapport de démultiplication supérieure 1
Rapport de pont 4.56
Généralités
Carfolio.com ID63987
Production total
Type mines
RAC rating 13.0
Insurance classification No information available
Tax band No information available
1952 Jowett Jupiter Mk IA Convertible added before December 1995.
Last modified 2013-02-28.