Alfa Romeo SZ ( ES-30 )

Alfa Romeo SZ ( ES-30 )

engine Es-30

Specifications of the car are:


Rosso Alfa number 130 - Duo Tone.


Type: 61501.

Location:front longitudinal mounting.

Number of cylinders and arrangement: 6 60 V. light alloy block and heads, capacity: 2959 cm3.

Bore x Stroke: 93 x 72.60 mm.

Compression Ratio 10:1

Max. Power: 207 HP or 154 kw ( EEC standards ) at 6200 rpm.

Max. Torque: 25 kgm. ( EEC standards ) at 4500 rpm.

Valve arrangement: V-type overhead. 1 overhead camshaft per bank with rocker-arms, toothed belt.

Top speed: 250 km/h.

Acceleration: from 0 to 100 km/h in 7 seconds.

Ignition system: digital ignition.

Cooling system: pressurized liquid cooling with thermostatic electric fan ( capacity: 10 liters).

Fuel system: electric pump with shutoff device in case of collision, combined ignition and fuel injection system ( multipoint ) Bosh ML4.1 - Motronic. 3-way catalyst ( US '83 standards ).

Fuel tank: internal, behind the rear seat ( capacity 68 litres ).


Rear wheel drive.

Clutch: dry single plate.

Gearbox: mechanical rear transaxle 5 speeds forward plus reverse,( I, 1:2,87 / II, 1:1,72 / III, 1:1,22 / IV, 1:094 / V, 1:078 / R, 1:3,0 ) floor mounted gear lever.

Final drive: hypoid bevel gear, ratio 11/43. The 75 1800 Turbo ( plus police and carabineri ) seem also to have the same ratio as the SZ 11/43.


Front: independent wheels, transverse arms and oblique beam, coil spring, anti-roll bar.

Rear: rigid axle, de Dion scheme, oblique arm. Watt linkage, coil spring, anti-roll bar.

Shock absorbers: hydrolic telescopic type ( with ground clearance manual control )


Light-alloy Speedline rims in 2 pieces. Front wheels: 7Jx16 H2 ET:7. Rear wheels: 8Jx16 CH ET:20.

Tyres: P-Zero, front 205/55 ZR 16, rear 225/50 ZR 16.

Tyre from the emergency wheel in the boot: 115x85 R18 96M


Foot: hydraulic circuit, front and rear vented discs, power-assisted braking. Handbrake: mechanical on the rear wheels.


Rack and pinion, servo, turning circle: 11 m.

Electric system

12 V; 70 Amp. alternator, 70 Ah. battery.


Bodypanels formed from Modar thermosetting metacrylic resin and glassfibre, bonded to the body-shell structure. The suspension contains some uniball ball joints


Wheelbase: 2.510 m. Track: front 1.464 m. rear: 1,426. Length: 4.060 m. Width: 1.730 m. Height: 1.300 m.


Unladen: 1260 kg.

Do you have folders, articles or something else about the Alfa Romeo SZ ( ES-30 ), I am intrested to purchase it.
When you have something for me, than please mail me about this.

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