Ferrari Dino 308 GT4 group 5 (1974)

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Specifications
2826 units built
Click here for 308 GT4/LM '74
Click here for street version
Group/Class | 3 | Homologation number: 3073 |
Years active | 1976 | Homologation start: 1/4/1976 |
Engine | ||
Type | Ferrari Dino F106 AL, V8 (90o) cyl, 4 stroke, petrol engine | located transversly in the middle and in front of the rear axle |
Capacity | 2927 cc | WRC: 2927 cc |
Bore x Stroke (mm) | 81.0 x 71.0 | |
Compression ratio | 10.0:1 | |
Output power - torgue | 300 HP / 8200 rpm | 27.2 kgm (267 Nm) / 6000 rpm |
Main bearings | 5 of 63mm diameter | connecting rod length between centers 137mm, big end bearing diameter 47mm |
Materials | block: aluminium alloy | cylinderhead: aluminium alloy, 127mm height |
Cams/valves | 2 overhead camshafts (DOHC), beltdriven | 2 valves per cyl - 16 valves total, 43mm inlet valve diameter, 37mm exhaust valve diameter. 22.5o angle between inlet valve axis and vertical, 22.5o angle between exhaust valve axis and vertical. 2 coil springs per inlet/exhaust valve |
Aspiration | naturally, 4 x dual Weber 40 DCNF carburetors | |
Ignition | electronic, firing order 1-5-3-7-4-8-2-6 | |
Cooling system | watercooled | |
Lubrication system | dry sump | 2 oil coolers |
Transmission | ||
Type | rear wheel drive | 5 speed gearbox |
Gearbox ratios | 1st: 3.418/1 2nd: 2.353/1 3rd: 1.693/1 4th: 1.244/1 5th: 0.952/1 R: 3.247/1 |
|
Diffrential ratio | 3.706/1 (63/17) | helical gears 50-75% limited slip rear differential |
Clutch | dry, single disk 241mm diameter | |
Chassis-body | ||
Type | steel tubular chassis with roll-cage. 2 door coupe bodyshell made of fiberglass | |
Front suspension | double wishbones with coil spring, adjustable telescopic gas shock absorber and anti-roll bar | |
Rear suspension | double wishbones with coil spring, adjustable telescopic gas shock absorber and anti-roll bar | |
Steering system | rack and pinion | |
Brakes | ventilated disks all around | dual circuit with servo |
Dimensions | ||
length: 4.460 m (175.6") | width: 1.800 m (70.9") | height: 1.210 m (47.6") |
wheelbase: 2.550 m (100.4") | front track: 1460 m (57.5") | rear track: 1460 m (57.5") |
Rims - tires | Front: 8x15" and rear: 12x15" | Front: 205/70 VR 14 |
Weight | 1200 kg | |
Fuel tank | ||
Drag coefficient | 0.4 |
Results in WSCC
Season
308 GT4
308 GT4
Car entry, chassis number | Car number/ result | ||||||||||
Monza | Spa | Nurb | Imola | Le Man | Zeltweg | Watkins Glen | Le Castellet | Brands Hatch | Kyalami | ||
Team | 1000km | 1000km | 1000km | 1000km | 24h | 1000km | 6h | 1000km | 1000km | 6h | |
North American Racing Team, 08020 group 5 | #18, clutch | ||||||||||
Statistics | |||||||||||
Starts/finishes 1/0 | 1/0 | ||||||||||
Driver | Team entries and car number | ||||||||||
North American Racing Team | |||||||||||
Giancarlo Gagliardi | 18 | ||||||||||
Jean-Louis Lafosse | 18 |

page revision: 8, last edited: 23 Aug 2021 15:57