1928 Alfa Romeo 6C 1500
Alfa Romeo's racing roll of honour is highlighted by one event, the Mille Miglia, where Alfa has received 11 overall victories, a result that no other marque in the world can claim. The first of these victories was taken in this 1928 Alfa Romeo 6C 1500 Super Sport at the hands of Campari and Ramponi.
Designed by Vittorio Jano, the 1500 was really never conceived as a race car, more a sports car with a smooth six cylinder engine and ample acceleration. When the first Mille Miglia was raced, the car did well enough to motivate Alfa to make 3000 cars, 200 of which were fitted with a double over head camshaft (DOHC) valvetrain.
Called Super Sports, only ten of the DOHC models were fitted with superchargers for the racing circuits. These supercharged 1500s bridged the gap between the Alfa Romeos Grand Prix and road cars.
In 1928, the 1500 was replaced with the 1750, a more durable car built with the same engineering principles and design. The 1750 went on continue Alfa's Mille Miglia legacy by winning the event in both 1929 and 1930.
Story by Richard Owen Supercars.net
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In Detail
| submitted by | Richard Owen |
| engine | Cast Iron Inline-6 |
| aspiration | Supercharged |
| valvetrain | DOHC 2 Valves per Cyl |
| fuel feed | Zenith 42 HA Single Body Carburetor |
| displacement | 1487 cc / 90.7 in³ |
| bore | 62 mm / 2.44 in |
| stroke | 82 mm / 3.23 in |
| compression | 6.0:1 |
| power | 56.7 kw / 76 bhp @ 4800 rpm |
| specific output | 51.11 bhp per litre |
| bhp/weight | 89.94 bhp per tonne |
| body / frame | Steel Ladder Frame |
| driven wheels | RWD |
| front tires | 4.75 X 18 |
| rear tires | 4.75 X 18 |
| front brakes | Drums |
| f brake size | mm / in |
| rear brakes | Drums |
| r brake size | mm / in |
| f suspension | Solid Axle w/Semi Elliptic Leaf Springs, Friction Dampers |
| r suspension | Solid Axle w/Semi Elliptic Leaf Springs, Friction Dampers |
| weight | 845 kg / 1863 lbs |
| wheelbase | 2920 mm / 115.0 in |
| front track | 1380 mm / 54.3 in |
| rear track | 1380 mm / 54.3 in |
| length | 3970 mm / 156.3 in |
| transmission | 4-Speed Manual |
| gear ratios | :1 |
| top speed | 140 kph / 87.0 mph |
| designers | Vittorio Jano |
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