Tipo 8CL - 1940-1946
The technical layout that proved so successful for the 4CL figured in this new car designed to compete in the tough International Formula: four valves per cylinder, square bore/stroke dimensions, and twin compressors feeding the two individual 4-cylinder blocks mounted in line on a common crankcase. The new single-seater had a slightly longer wheel base than the 8CTF it was replacing, and its in-line eight-cylinder engine also delivered a very powerful 415 bhp.
The start of the Second World War brought development of the 8CL to a halt, and by its end, the big displacement engines with compressors were confined to the Formule Libre races which turned out to be of little interest. As a result, production was limited to just two examples. The 8CL's greatest moment came in 1948 when Giuseppe Farina drove it to victory in the Mar del Plata Grand Prix and the Grand Prix des Nations at Geneva.
Technical data
| 0-60 mph | |
| Bodywork | aluminium-bodied single seater |
| Bore and stroke | 78x78 mm |
| Brakes | hydraulic drum brakes on the wheels |
| Brakes front | |
| Brakes rear | |
| Chassis | alloy longitudinal girders and cross members |
| Compression ratio | 6.5:1 |
| Cooling system | water-cooled, centrifugal pump |
| Displacements (unitary) | |
| Dry weight | 1,719 lbs (780 kg) |
| Engine | vertical in-line 8 |
| Engine weight | |
| First race | 1940 Indianapolis 500 Miles |
| Front Tyres | |
| Front suspension | torsion bars, friction dampers |
| Front track | |
| Fuel & lubricant | |
| Fuel feed | two Roots superchargers, two Memini carburettors mounted ahead of the superchargers |
| Fuel tank | 39.59 Imp. gall. (180 litres) |
| Gear ratios | |
| Height | 43.30 in. (1,100 mm) |
| Ignition | single-plug, Scintilla magneto |
| Kerb weight | |
| Length | 150.79 in. (3,830 mm) |
| Length-Width-Height | |
| Lubrication | dual oil pumps (pressure and scavenge) |
| Maximum power | 415-430 bhp at 6,400-6,800 rpm |
| Maximum torque | |
| Model | 8CL |
| One mile | |
| Production dates | 1940-1946 |
| Production start | 1940 |
| Quarter mile | |
| Rear Tyres | |
| Rear suspension | leaf springs and friction dampers |
| Rear track | |
| Reduction | |
| Steering | worm and sector |
| Timing gear | four valves per cylinder set in a 90°V, twin overhead camshafts |
| Top speed | 174-189 mph (280-305 km/h) |
| Total displacement | 3,981.7 cc |
| Transmission | 4-speed + reverse |
| Tyres | fr/rear 5.50x19-6.50x19; Pirelli |
| Weight distribution | |
| Wheelbase | 109.84 in. (2,790 mm) |
| Wheels | wire wheels, 3.25x19-4.00x19 |
| Width | 58.27 in. (1,480 mm) |



