Alfa Romeo 158/159 Alfetta (1938 - 1951)

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Details
Chassis Single-seater, tubular frame
Suspension (front) Trailing arm, transverse leaf springs, hydraulic dampers
Suspension (rear) Swing axle*, transverse leaf spring, hydraulic dampers
*De-Dion-axle was one of the last modifications 1951.
Engine Alfa Romeo 158/159 1,479 cc (90.3 cu in), straight-8, Roots-type supercharger**, front mounted.
** 158: single stage – 190 bhp (142 kW) @ 6500 rpm (voit), 350 bhp (261 kW) @ 8500 rpm (F1); 159: two stage – 425 bhp (317 kW) @ 9300 rpm
Transmission Alfa 5-speed manual
Fuel Shell (98.5% methanol, 1% Castor oil, 0.5% water)
Tyres Pirelli

 

  Alfa Romeo Tipo 158 
engine 8-cylinder in-line engine (engine block and cylinder heads made of light alloy)
displacement 1479cc
bore × stroke 58.0mm × 70.0mm
compression ratio 6.5:1
Power at 1/min 350 hp (261 kW) at 8500
specific performance 237 hp/l (174 kW/l)
valve control two overhead camshafts / 2 valves per cylinder
mixture preparation carburetor
engine charging Roots compressor
cooling water
transmission 4-speed gearbox (rear wheel drive)
brakes Drum brakes on all wheels
Front suspension Crank link axle with transverse leaf spring, friction damper , hydraulic shock absorber
rear suspension Swing axle, semi-elliptical transverse leaf spring, friction and hydraulic shock absorbers
body and frame Aluminum body, tubular steel frame
wheelbase 2502mm
Track width front / rear 1270mm / 1321mm
Dimensions L × W × H 4200mm × 1550mm × 1120mm
Curb weight without driver 630kg (1946) / 700kg (1950)
top speed 290km/h
power-to-weight ratio 0.555 HP/kg (409 W/kg)

 

Alfa Romeo 158/159 Alfetta on Wikipedia


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