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Thread: Auto Avio Costruzioni 815 1940

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    Auto Avio Costruzioni 815 1940

    The Auto Avio Costruzioni 815 was the first car to be fully designed and built by Enzo Ferrari. Legal issues with former associates Alfa Romeo prevented Ferrari from creating the Ferrari marque. The 815 raced at the 1940 Brescia Grand Prix, where both entries failed to finish due to engine problems. One of the cars was later scrapped, while the other is currently in a car collection in Italy.

    Details

    The 815 was designed and developed by ex-Alfa Romeo engineers Alberto Massimino and Vittorio Bellentani and by Enrico Nardi. The designation "815" was based on the car's eight-cylinder, 1.5 L engine. This engine was largely based on the four-cylinder, 1.1 L engine of the 508 C Balilla 1100. In concept, it was two 508C engines placed end to end, but it used a specially designed aluminium block built by Fonderia Calzoni in Bologna for integrity and light weight and a five-bearing crankshaft and a camshaft designed and built by AAC to get the traditional straight-8 timing and balance. The engine used Fiat valve gear, cylinder heads (two 508C heads per engine), and connecting rods. The engine was high-tech for the time, with a single overhead camshaft, two valves per cylinder, and a semi-dry sump lubrication system. Four Weber 30DR2 carburettors were specified for a total output of 75 hp (56 kW) at 5500 rpm.

    The 815 used a Fiat four-speed transmission with the Fiat gears replaced by gears made in-house by AAC. The transmission was integral to the engine block. The car had independent Dubonnet suspension with integral shock absorber at front, with a live axle on semi-elliptic leaf springs and hydraulic shock absorbers at the rear.

    The bodywork was done by Carrozzeria Touring using Itallumag 35, an aluminium/magnesium alloy, and was done in long, flowing forms with integrated wings. The bodywork weighed 119 lb (54 kg). The complete car weighed 625 kg (1,380 lb) and attained a maximum speed close to 170 km/h (110 mph).

    Source: wikipedia.org
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