Alfa Romeo Giulietta/Giulia Spider group GT (1956)
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Home » Racing Sports Cars » Alfa Romeo Giulietta Spider

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Spider registry

Specifications

Production numbers:
Giulietta Spider 750D: 5940
Giulietta Spider 10103: 8354
Giulietta Spider Veloce 750F: 1253
Giulietta Spider Veloce 10107: 1683
Giulia Spider 10123: 9250
Giulia Spider Veloce 10118: 1091

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Click here for 1956 Giulietta Spider Veloce Tipo 750F
Click here and here for Giulietta Spider 10103
Click here for Giulietta Spider Veloce '60
Click here and here for 1962 Giulia Spider
Click here for 1965 Giulia Spider Veloce

Group GT
Homologation number 125 126 101 and 511 188 and 514 97 and 517
Homologation start 13/3/1958 28/1/1963 and 1/1/1966 1/4/1965 and 1/1/1966 29/1/1963 and 1/1/1966
Model Giulietta Spider Giulietta Spider Veloce Giulia Spider Giulia Spider Veloce 2600 Spider
Chassis Type AR1495.00001 AR1495F.00001 or AR.10103.167001 AR.10123.372001 AR.10118.383001 AR.10601.191001
Engine Type AR1315.40001 AR1315.30001 or AR00106.00001 AR00112.00001 AR00601
Capacity 1290 cc (74.0 x 75.0 mm) 1570 cc (78.0 x 82.0 mm) 6 cyl, 2584 cc (83.0 x 79.6 mm)
Compression 8.5:1 9.1:1 9.0:1 9.7:1 9.0:1
Aspiration 1 x Solex 35APAI-G carb 2 x Weber 40DCOE or 40DCO3 carbs Bosch-Marelli-Lucas mech inj or 2 x Solex 32 PAIA5 2 x Weber 40DCOE2 carb Bosch-Marelli mech inj, or 3 x Solex 44 PHH or Weber 45 DCOE9 carbs
Power output 79 HP / 59 kW @ 6300 rpm 89 HP / 66 kW @ 6500 rpm 92 HP kW @ 6200 rpm 112 HP @ 6500 rpm 145 HP @ 5900 rpm
Torque 98 Nm (72 ft·lb) (10 kgm) @ 3500 rpm 108 Nm (80 ft·lb) (11 kgm) @ 4500 rpm
Engine
Type Alfa Romeo Twin Cam 1315 or 00106, straight 4 cyl, 4 stroke, petrol engine located front longitudinally vertical
Capacity 1290 cc
Bore x Stroke (mm) 74.0 x 75.0
Compression ratio 9.1:1
Output power - torgue 89 HP / 66 kW @ 6500 rpm 108 Nm (80 ft·lb) (11 kgm) @ 4500 rpm
Main bearings forged steel crankshaft with 5 main bearings 57/60mm diameter connecting rod big end bearing diameter 45mm, aluminium alloy piston with 44.7mm compression height
Materials block: aluminium alloy engine block with cast iron "wet" cylinder liners cylinderhead: cross flow aluminium alloy head with hemispherical combustion chambers
Cams/valves dual overhead camshafts (DOHC), direct valve actuation with bucket tappets driven by a double row timing chain 2 valves/cyl. - 8 valves total. 37.15mm inlet valves diameter, 34.15mm exhaust valves diameters. 80o angle between inlet valves axis and exhaust valves axis
Aspiration natural with 2 x Weber 40DCOE or 40DCO3 carburetors
Ignition firing order 1-3-4-2, 12V battery, 50 Ah, 240 W dinamo
Cooling system jacketed watercooled with pump, radiator, fan and thermostat 7.5 lt
Lubrication system flat, finned oil sump 7 lt
Transmission
Type rear wheel drive Borg Warner, 4 speed manual gearbox
Gearbox ratios Sprint & SV:
constant: 1.75/1 (35/20)
1st: 3.313/1 (36/19)
2nd: 1.959/1 (29/26)
3rd: 1.354/1 (24/31)
4th: -
R: 3.25/1		 constant: 1.41/1 (31/22)
1st: 3.26/1 (37/16)
2nd: 1.99/1 (31/22)
3rd: 1.36/1 (26/27)
4th: -
R: 3.25/1		 1963: constant: 1.30/1 (30/23)
1st: 2.54/1 (35/18)
2nd: 1.70/1 (30/23)
3rd: 1.26/1 (26/27)
4th: -
R: 3.01/1 (30/13)		 1963: constant: 1.30/1 (30/23)
1st: 3.30/1 (38/15)
2nd: 1.99/1 (32/21)
3rd: 1.36/1 (27/26)
4th: -
R: 3.01/1 (30/13)
Diffrential ratio 4.10/1 (41/10), 4.555/1 (41/9), 5.125/1 (41/8) hypoid spiral bevel gears rear differential
Clutch dry single disc 200mm diameter
Chassis-body
Type steel monocoque Tipo 750D or 1959: 10103 (Sprint) or 10107 (Sprint Veloce) chassis. 2 door coupe steel bodyshell with steel doors, steel front/rear bonnets, steel bumpers
Front suspension double unequal-length A-arms, coil springs and anti-roll bar
Rear suspension Live/rigid axle with single lower trailing arms, upper triangulated link from floorpan to differential housing and coil springs
Steering system globe-shaped screw and roller (no servo) 3 turns lock to lock
Brakes front drums 267mm diameter and 70mm width, rear drums 254mm diameter and 44.5mm width with 1 double cast iron piston caliper 22.2mm diameter dual circuit
Dimensions
length: 3981 mm (156.7") width: 1540 mm (60.6") height: 1310 mm (53.1")
wheelbase: 750: 2200 mm (93.7"),
101: 2250 mm (88.6")		 front track: SV: 1292 mm (50.9")
Sprint: 1286 mm (50.6")		 rear track: 1270 mm (50.0")
Rims - tires 4.5J x 15" 155-R15"
Weight Giulietta: 880kg, SV: 855 kg, Giulia: 910 kg distribution, 54%/46% front/rear
Fuel tank 80 lt
Drag coefficient

Results in WSCC

Season
Car entry, chassis number Car number/ result
Buenos Aires Sebring Mille Miglia Nurburgring Sverige
Team 1000km 12h 1600km 1000km GP
Chas. Nebel, AR750.1495G.00301 (Sebring Veloce) #52, in entry list #425, dnf
Statistics
Works Starts/finishes 1/0 1/0
Drivers Team entries and car number
Chas. Nebel
Umberto Maglioli 52
Consalvo Sanesi 52 425
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Spider Sebring
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Drawings

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page revision: 68, last edited: 18 Jun 2021 13:15
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