
Farina bodied Jupiter

interior of same car
Jowett Jupiter sports cars were built
from 1950 to 1954 all of which were powered by a Jowett-designed 1486cc
flat four pushrod engine of 60-62BHP in standard form. Most Jupiters
constructed were the aluminium-bodied Mk1 (731) and the Mk1a (94). A
further 75 fully equipped Jupiter rolling chassis were sold to specialist
coachbuilders like Farina, Gebruder Beutler, Ghia Suisse, Richard Mead,
Abbott of Farnham, to name but five. The Factory built three sports-racing
R1-type Jupiters for the Le Mans 24-hour races of 1951 and 1952 to
capitalise on the standard Jupiter's class win at that race in 1950.
During 1953 three R4-type Jupiters were designed and built on a quite
different chassis to take Jowett into the mid fifties and beyond. Bodywork
was to be in a plastic-resin laminate.

Jupiter
RACE RESULTS for the JOWETT
JUPITER
Le Mans 24-hour
International sports car race
1950 class win (Standard Mk1) - Tom Wisdom, Tommy Wise
1951 class win (Standard Mk1) - Marcel Becquart, Gordon Wilkins
1952 class win (R1) - Marcel Becquart, Gordon Wilkins
RAC-TT
International race for standard sports cars, Dundrod Northern Ireland
1951 Class win (Standard Mk1) - Bert Hadley
1951 Class 2nd (Standard Mk1) - Tommy Wise
During the race Tommy Wise was timed at 92.90mph through the measured
kilometre
Swiss National
race for standard sports cars, Bremgarten
1951 class win (Standard Mk1) - Gurzeler
Queen Catharine
Monteur Cup for 1.5 litre sports cars, Watkins Glen USA
1951 Cup Winner (R1) - George Weaver
International British Empire Trophy, Isle
of Man
May 1952 a Standard Mk1 Jupiter was the
first true production car home in the 1500cc class, at 7th overall.
Governor's Cup, Arizona day of Races USA
May 1953 Standard Mk1 Jupiters first and
second in 1500cc class
RALLY RESULTS for the JOWETT JUPITER
Monte Carlo
International Rally
1951 Class win, 6th overall (Standard Mk1) - Ellison/Robinson
1951 Class 2nd, 10th overall (Standard Mk1) - Wilkins/Baxter
1952 Class 2nd, 5th overall (Farina FHC Jupiter) - Becquart/Ziegler
1953 Class 4th, 36th overall (Grounds FHC Jupiter) - Grounds/Hay
International
Rally of Portugal (Lisbon Rally)
1951 Outright winner (Standard Mk1) - Joaquim Filipe Nogueira
Rallye de l'Iseran
1951 National Rallye de l'Iseran. Outright winner Jean Armangaud (Standard
Mk1)
Jupiters tried hard in
the International Criterion des Alps 1951, 1952 and 1953. In
1951 Armangaud won his class in the Monza speed test on the first day,
and on the third day Wise class-won the Falzarego ascent with Armangaud
second. On the fifth day Wise class-won the Stelvio ascent with Armangaud
third this time.
In 1952 Robinson lost no marks on the first two days before being
forced out with brake problems.
|
Wheelbase |
2362 mm |
93
in |
|
|
Track |
front |
1321 mm |
52 in |
|
|
rear |
1321 mm |
52 in |
|
|
Length |
4343 mm |
171 in |
|
|
Width |
1575 mm |
62 in |
|
|
Kerb weight |
686 kg |
1512 lb |
|
|
Type |
S-4
|
OHV
8 valves total
2 valves per cylinder |
|
Bore × stroke |
72.50mm × 90.00mm |
|
2.85 in × 3.54 in |
|
Bore/Stroke ratio |
0.81 |
|
Displacement |
1486 cc
(90.681 cu in) |
|
Unitary capacity |
371.5 cc/cylinder |
|
Compression ratio |
9.25:1 |
|
Fuel system |
2 Ze carbs |
|
Aspiration |
Normal |
|
Max. output |
71 PS (70.0 bhp) (52.2
kW)
@5000 rpm |
|
Coolant |
Water |
|
Specific output |
47.1 bhp/litre |
|
0.77 bhp/cu in |
|
Top speed |
161 km/h |
|
Power-to-weight |
102.04 bhp/ton |
|
chassis |
|
Engine location |
Front |
|
Engine alignment |
Longitudinal |
|
Drive |
RWD |
|
Top gear ratio |
1.00 |
|
Final drive ratio |
4.10 |
|
|
|