Aston Martin DB3S (1953 - 1957)

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Details
Chassis Twin-tubular design, aluminium body, open two seater
Suspension (front) Torsion bar and trailing arms
Suspension (rear) Torsion bars, trailing arms, De Dion tube and central slide
Length 12 ft 10 in (3,910 mm)
Width 4 ft 11 in (1,500 mm)
Height 3 ft 5 in (1,040 mm)
Axle track 4 ft 1 in
Wheelbase 7 ft 3 in (2,210 mm)
Engine Lagonda 2,992 cc Straight six, Twin OHC, (later a twin-plug head), FR Layout, 3 twin-choke Weber 35 DCO carburettors
Transmission David Brown S430, 4-speed Manual, 9" single clutch
Weight 1,850 lb (840 kg) dry
1,940 lb (880 kg)
Tyres 16 x 6

 

Aston Martin DB3 on Wikipedia

 

Aston Martin DB3S Fixed Head Coupe

Engine
Configuration Straight 6
Location Front, longitudinally mounted
Construction aluminium alloy block and head
Displacement 2,922 cc / 178.3 cu in
Bore / Stroke 83.0 mm (3.3 in) / 90.0 mm (3.5 in)
Compression 8.7:1
Valvetrain 2 valves / cylinder, DOHC
Fuel feed 3 Weber 45 DCO Carburettors
Aspiration Naturally Aspirated
Power 210 bhp / 157 kW @ 6,000 rpm
BHP/Liter 72 bhp / liter

 

Drivetrain
Body aluminium
Chassis steel tubular frame
Front suspension trailing links and torsion bars
Rear suspension DeDion axle, trailing links, transverse torsion-bars
Steering rack-and-pinion
Brakes (fr/r) drums
Gearbox David Brown 4 speed Manual
Drive Rear wheel drive

 

Dimensions
Weight 1,021 kilo / 2,251 lbs
Length / Width / Height 3,975 mm (156.5 in) / 1,499 mm (59 in) / 1,245 mm (49 in)
Wheelbase / Track (fr/r) 2,210 mm (87 in) / 1,245 mm (49 in) / 1,245 mm (49 in)

 

Performance figures
Power to weight 0.21 bhp / kg
Top Speed 208 km/h (129 mph)

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