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  Alfa Romeo P2
 

  Article Image gallery (16) 0003 Specifications  
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Country of origin:Italy
Produced from:1924 - 1925
Numbers built:6
Designed by:Vittorio Jano for Alfa Romeo
Successor:Alfa Romeo Tipo A Monoposto
Author:Wouter Melissen
Last updated:November 11, 2009
Download: All images

Engine
Configuration Straight 8
Location Front, longitudinally mounted
Construction cast-iron block and head
Displacement 1,987 cc / 121.3 cu in
Bore / Stroke 61.0 mm (2.4 in) / 85.0 mm (3.3 in)
Compression 6.0:1
Valvetrain 2 valves / cylinder, DOHC
Fuel feed 2 Memini Carburettors
Aspiration Roots-Type Supercharger
Power 155 bhp / 116 KW @ 5,500 rpm
BHP/Liter 78 bhp / liter

Drivetrain
Body aluminium body
Chassis steel ladder frame
Suspension (fr/r) rigid axle, semi-elliptic leaf springs, Hartford friction dampers
Steering worm-and-sector
Brakes cable-operated drums, all-round
Gearbox 4 speed Manual
Drive Rear wheel drive

Dimensions
Weight 750 kilo / 1,654 lbs
Length / Width / Height 3,950 mm (155.5 in) / 1,550 mm (61 in) / 1,180 mm (46.5 in)
Wheelbase / Track (fr/r) 2,624 mm (103.3 in) / 1,302 mm (51.3 in) / 1,245 mm (49 in)

Performance figures
Power to weight 0.21 bhp / kg
Top Speed 224 km/h (139 mph)

Race history
Major wins
1924 Circuito di Cremona (Antonio Ascari)
1924 French Grand Prix (Giuseppe Campari)
1924 Italian Grand Prix (Antonio Ascari)
1925 Belgian Grand Prix (Antonio Ascari)
1925 Italian Grand Prix (Gastone Brilli-Peri)
1927 Coppa Acerbo (Giuseppe Campari)
1928 Coppa Acerbo (Giuseppe Campari)
1929 Circuito di Alessandria (Achille Varzi)
1929 Rome Grand Prix (Achille Varzi)
1929 Coppa Ciano (Achille Varzi)
1929 Monza Grand Prix (Achille Varzi)
1929 Circuito di Cremona (Achille Varzi)
1929 Tunis Grand Prix (Gastone Brilli-Peri)
1930 Circuito di Alessandria (Achille Varzi)
1930 Targa Florio (Achille Varzi)

Resources
Suggested reading
  • Alfa Romeo Tutte le Vetture Dal 1910, by Luigi Fusi
  • Road & Track (July, 1969)
  • (September, 1981)
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  Article Image gallery (16) 0003 Specifications