Isotta Fraschini 8A

Technical details

ENGINE
Type: 8 cylinder in-line front
Engine block: only piece fused
Piston: aluminium alloy fused
Carter: three piece aluminium alloy fused. fixed to the chassy with four supports.
Crankshaft: chromiun-nickel steel forged
Engine capacity 7.370 cm3
Cylinder Capacity 921,25 cm3
Bore & stroke: 95mm x 130mm
Distribution: overhead camshafts, chain drive, two valves/cyl.
Fuel system 2 Zenith carburetor
Cooling water cooled by centrifugal pump
Lubrication forced with gear pumps
Ignition: magneto generator Bosch
Electrical system: 12 Volt
Max. Power: 115 Hp to 2.200 rpm
TRANSMISSION
Traction: rear
Gearbox: front in unit wifh engine, 3 speed + reverse gear with third speed in direct taken
Differential: pressed steel
Clutch dry multi discs ( steel and ferodo alternated)
CHASSIS 2 pressed steel girders with crosspieces
SUSPENSION
Fronti: live axle with longitudinal semi elliptic springs,Watson shock absorber
Rear: live axle with longitudinal semi elliptic springs,Watson shock absorber
Brakes drum brakes operating on all whells, Dewandre bracke booster
Steering endless screw type with vibration shock absorber
PNEUS:
Front & Rear 895 x 150, successively 32,6 x 6,20 e 33 x 6,75
CAR SIZE
Wheelbase 3.700mm
Truck width 1.410 mm
Length 5.000mm
Width: 1.710mm
Space available for body: 3.000mm
Weight 1.480 Kg (chassis + engine + electric system ) only
PERFORMANCE
Max. speed 140 Km/h
Fuel comsuntiom: 22-25 liter x 100Km
Fuel capacity: 110 liter, on the rear chassis mounted
Produced exemplary number about 950 (from 1924 to 1932)

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Graphic & Engineering by Fabio Carrera