553 F1 - 554 F1
Formula 1 racing car.
Years of activity
Siracusa Grand Prix of 11.4.1954.
Type 106. 4 cylinders in line, aspirated, front-mounted, light alloy cylinder block and head, 138 mm connecting rod, steel cylinder liners, water cooled.
Bore and stroke
100 x 79.5 mm.
Unitary and total capacity
624.39 / 2,497.56 cc.
Max. power output
260 bhp at 7,200 rpm.
2 valves per cylinder, 2 overhead camshafts with tappets and rollers, gear drive at front.
2 horizontal Weber 50 DCOA-3 twin-choke carburettors.
Double with 2 Marelli magnetos.
Forced with dry sump.
Rear. Multi-plate clutch, gearbox with 4 speeds + reverse, in block with self-locking differential.
Variable depending on racing circuit.
Type 553. Steel tube frame.
Double wishbones: double triangles, transverse lower leaf spring, anti-roll bar and Houdaille hydraulic lever dampers.
De Dion live axle, two longitudinal struts, transverse lower leaf spring and Houdaille hydraulic lever damper.
Worm and sector.
Finned bimetallic drums with independent hydraulic control for front and rear wheels.
Front 5.25/5.50x16", rear 7.00x16".
Spoked, front 3.50/4.00x16", rear 5.50x16".
1,278 mm / 1,250 mm.
Weight with water and oil
Fuel tank (litres)
N. a. Mixture. 2 side tanks.
Aluminium single-seater body with 2 side fuel tanks.