Jaguar XK120 group S (1950)
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1948: Jaguar XK120
1951: Jaguar XK120 M or SE

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Specifications

7612 units built (roadster)
2678 units built (coupe)
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Click here and here for Coupe

Engines

Analytical specifications and drawings

Inline 6 cylinder
3442cc capacity
DOHC, 2 valves per cylinder
2 x double SU H6 Carburetors
Power output
1948: 160 HP / 119 KW @ 5000 rpm, 262 Nm / 193 ft lbs @ 2500 rpm
1951 M: 180 HP / 134 KW@ 5300 rpm, 275 Nm / 203 ft lbs @ 4000 rpm

Moss 4 speed Manual gearbox
1st: 3.377/1
2nd: 1.982/1
3rd: 1.367/1
4th: 1.00/1
R: 3.377/1
final drive, 3.54/1 or 4.09/1, 3.77/1, 3.31/1, 4.27/1, 4.55/1.
steel body on steel box-type frame
Front suspension double wishbones, torsion bars, Newton telescopic dampers, anti-roll bar
Rear suspension live axle, semi-elliptic leaf springs, Girling lever arm dampers
Burmann recirculating ball steering
Lockheed drums 305 mm diameter, all-round
Length 4394 mm (173 in)
Width 1562 mm (61.5 in)
Height 1397 mm (55 in)
Wheelbase 2591 mm (102 in)
Track (fr/r) 1295 mm (51 in) / 1270 mm (50 in)
wheels 5K x 16"
tires 6.00 × 16"
1200-1300kg
fuel tank, 70 lt
drag coefficient, 0.55


Results in famous races (until 1952) and in WSCC (1953+)

Season
Car entry, chassis number Car number/ result
Targa Florio Mille Miglia Carrera Pan Le Mans Dolo miti Tourist Trophy Sebring
Date 2/4 23/4 10/5 25/6 16/7 19/9 31/12
Team 1080km 1600km 3000km 24h 300km 3h 6h
Jaguar Cars, 660040 #735, 5th #17, clutch #6, 7th
Jaguar Cars, 660041 #741, acci dent #15, 12th #8, acci dent in practice
Jaguar Cars, 660042 #16, 15th
Jaguar Cars, 660057 #738, dnf #7, 1st
Jaguar Cars, 660002 #5, 2nd
Clemente Biondetti, 660043 #501, eng ine #729, 8th
"I.D.E.B."/ Alessandro Gaboardi #737, 16th
Fitch/ Whitmore #23, 13th
McIntosh/ Doyle #33, 14th
Brown/ Hassan #35, dnf
Total points
31
8 23
Statistics
Works Starts/finishes 15/10 1/0 5/3 3/2 4/3 2/2
Drivers Team entries and car number
Jaguar Cars
Leslie Johnson 735 17 6
John Lea 735
Tommy Wisdom 738
Anthony Hume 738
Nick Haines 741 15 8
Rodolfo Haller 741
Peter C. T. Clark 15
Peter Whitehead 16 5
John Marshall 16
Bert Hadley 17
Stirling Moss 7
Clemente Biondetti
Clemente Biondetti 501 729
Gino Bronzoni 729

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Drawings

jaguar_xk_120.jpg Source
jaguar-xk120-roadster-1950.png Source
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