Jowett Jupiter

An prime example of eccentric British design and execution.

Who would expect to find this engine in a British car?

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The engine was was Gerry Palmer’s (he of the Jowett Javelin design, and later the MG Magnette, Wolseley 4/44 and variants) first and last engine design. It is a horizontally opposed four cylinder unit bored 72.5mm x stroke 90mm swept volume 1486cc. (90.6cu-in). Compression ratio was 7.6:1 or 8:1 depending on the destination country’s gasoline.

The car had rack and pinion steering which was rare for that time.

Jupiters had what was probably the most advanced chassis of their time on a British car.

RACE RESULTS for the JOWETT JUPITER car

Le Mans 24-hour International sports car race
1950 class win (Standard Mk1) – Tom Wisdom, Tommy Wise (The Sagacious Two)
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

SCCA National Meet at the Thompson Speedway.

July 1951 The 1500cc race for production sports cars was won by a Jupiter

Swiss National race for standard sports cars, Bremgarten
1951 class win (Standard Mk1) – Gurzeler

Queen Catharine Montour 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

For more race results, read the books…

HILLCLIMB RESULTS for the JOWETT JUPITER

SCCA Burke Mountain Hillclimb, USA

June 1951 Class win by a standard Jupiter

Rheineck-Walzenhausen Hillclimb, Switzerland

June 1951 Class win by a standard Jupiter

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.

Lake Tahoe Rally

August 1952. FCCA National Rally in the Californian high sierras. Outright win by a Standard Mk1 Jupiter

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