Alfa Romeo 6C 2500 Tipo 256 group S (1939)
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Home » Racing Sports Cars » Alfa Romeo 6C 2500 tipo 256

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Alfa 6C register

Specifications

Production:
Model Year Units built Chassis Specifications
6C SS Spider Corsa "Ala Spessa" 1939 2 915006, 915009
6C SS Spider Corsa 1939-1940 5 915007, 915008, 915010, 915011, 915014 here and here
6C SS Le Mans Berlinetta "Aerodinamico" Touring 1939 1 91507 here
6C MM Spider "Torpedino Brescia" 1940 3 915091, 915092, 915093 here

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Alfa Romeo Tipo 256, 6 cylinders
72.0 x 100.0 mm
2443 cc
8.0:1
125 bhp / 93 kW @ 4750 rpm (8.0:1) with 3 x carburetor
cast-iron block, light alloy head with hemispheric combustion chambers
steel crankshaft with 7 main bearings
DOHC chain driven with 4 main bearings, 2 valves / cylinder - 12 valves total. 90o angle between inlet and exhaust valve axis, 34 mm inlet valve diameter, 31 mm exhaust valve diameter
aspiration, natural with 3 x Weber 36 DO2 carburetors
(1940 MIille Miglia #80 Chiodi car: new electro-magnetic injection system by Caproni-Fuscaldo)
water cooled, 13 lt water capacity
wet sump with gear pump, 8 kg oil capacity
4 speed manual gearbox (1st and 2nd non synchronized, 3rd and 4th synchronized)
1st, 3,3/1
2nd, 1,943/1
3rd, 1,308/1
4th, 1:1
R, 3,2/1
final drive, 3.6875/1 (59/16)
Dry, single plate clutch
aluminium body on steel ladder frame chassis
Front suspension, twin trailing arms, coil springs, hydraulic shock absorbers
Rear suspension, swing axles, radius arms, longitudinal torsion bars, friction dampers and tubular shock absorbers
worm-and-wheel steering
sizeable, hydraulically actuated drum brakes
Wheelbase, 2700 mm (106.3 in)
Track (fr/r), 1,450 mm (57.1 in) / 1,470 mm (57.9 in)
wheels, 5.5 x 18", 6 x 18"
1130-1160 kg
fuel tank, 135 lt


Results in Endurance Races

Season
Touring Superleggera bodyshell for all cars
Car entry, chassis number Car number/ result
Le Mans Commingues
Date 18/6 6/8
Team 24h 3h
Raymond Sommer/ "B. Bira", 91507 (SS Le Mans Berlinetta "Aerodinamico") #25, eng ine
Statistics
Works Starts/finishes 1/0 1/0
Drivers Team entries and car number
Alfa Corse
Ercole Boratto
Clemente Biondetti

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SS Spider Touring "Ala Spessa" in Mille Miglia 1940
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6C SS Le Mans Berlinetta "Aerodinamico" Touring
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1940 MM Spider "Torpedino Brescia"
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1939_AlfaRomeo_6C2500SSSpiderCorsa1.jpg Source
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