AAC 815
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| |
| Auto Avio Costruzioni 815 | |
|---|---|
| Manufacturer | Auto Avio Costruzioni |
| Production | 1940 2 produced |
| Successor | Ferrari 125 S |
| Class | Sports car |
| Engine | 1.5 L (1496 cc) SOHC I8 |
| Wheelbase | 2420 mm (95 in) |
| Weight | 625 kg (1375 lb) |
| Body style | 2-seat barchetta |
Also See: Ferrari
The Auto Avio Costruzioni 815 was the first Ferrari car that was fully designed and built by Enzo Ferrari. Bound by contracts after leaving Alfa Romeo, however, Ferrari was not allowed to call this car a Ferrari. Instead he set up shop under the name AAC (Auto Avio Costruzioni), and strictly speaking the car was named AAC tipo 815. It was named this because it had an eight cylinder, 1.5 L engine. It showed promise at the Mille Miglia of 1940, with the two 815s built run by Lotario Rangoni/Enrico Nardi and Alberto Ascari/Giuseppe Minozzi, but both broke down and did not finish. Ascari's car was sold to racer Enrico Beltrachini and it reappeared after WW II, but Rangoni's was scrapped in 1958 after being passed on to Lotario's brother, Rolando. The only remaining 815 today is chassis 815/021 and is held in the Righini collection owned by Mario Righini in Italy.
The AAC 815 was built primarily of Fiat components, specifically scavenging the 1.5 L (1496 cc) straight-8 engine and chassis from the 508 C Balilla 1100. The bodywork was done by Carrozzeria Touring, who would work extensively with Ferrari in the next decade, and was done in long, flowing forms with integrated wings. The engine was high-tech for the time, with a single overhead camshaft, two valves per cylinder, and a semi-dry sump lubrication system. A four-speed manual transmission was integral to the engine block. Four Weber 30DR2 carburettors were specified for a total output of 72 hp (54 kW) at 5500 rpm, allowing the light 625 kg (1378 lb) car to hit nearly 170 km/h (106 mph).
The first car to be designed and built by Enzo Ferrari, the 815 was never badged as such, the company being called Auto Avio Costruzione. Two examples were built in 1938/9 using various Fiat parts and with design input by Nardi and Massimino. The cars were entered in the 1940 1° Gran Premio Brescia delle Mille Miglia (9 laps of a much reduced circuit).
Technically the chassis was a much modified Fiat 508C unit with a Fiat 1100 differential unit. The engine was a straight-eight 1496cc (63x60mm) item, some articles stating that it was two Fiat 1100 blocks welded together, others stating that it was a single casting. Whatever the case, two Fiat 1100 cylinder heads were fitted with two exhaust manifolds and four twin carburetors. The 815 stood for 8 cylinders and a capacity of 1500cc. This unit produced 72bhp @ 5,500rpm.
The aluminium body was constructed by Touring using their famous 'Superleggera' structure and was known as a 'Torpedo Tipo Brescia'. The wheelbase was 2420mm. front and rear tracks were 1240mm and the dry weight was 992lbs.
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