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Ferrari GTBi - 1980

Overview

308 GTBi

1980

The GTBi’s coachwork remained largely unchanged with respect to the 308 GTB, apart from a few modifications to the interior. The most important changes, however, were made to the engine. In fact, in competition, fuel injection systems had replaced the traditional stacks of carburettors and, as transferring racing experience to production cars has always been part of the Ferrari mission, adopting fuel injection systems was in line with this, helping indirectly to comply with new exhaust emission norms.

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Ferrari 308 GTBi - 1980

With worldwide legislation increasing to reduce exhaust emissions, fuel injection was adopted on the 308 GTB in late 1980, and the model became the 308 GTBi, the “i” suffix in the model designation referring to the fitment of fuel injection. Visually the new model was almost identical to the outgoing one, although the casting pattern of the five spoke alloy wheels changed slightly due to the fitment of Michelin TRX metric size radial tyres. However, the imperial size Michelin XWX tyres on 14” wheels, or Pirelli P7 tyres on 16” wheels were available as an option.

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The Interior

As with the exterior, the interior was very similar to the 308 GTB model, the main differences being that the leather trimmed bucket seats had a different stitch pattern, whilst the main instruments were maintained in a hooded nacelle in front of the driver, the clock and oil temperature gauge were moved to a panel at the front of the centre console to make them more easily visible in a separate panel on the lower left edge of the dashboard.

The steering wheel design was also changed to one with satin black spokes, featuring longitudinal slots. As with the preceding model the gear lever in an open gate was mounted in the centre console alongside the ashtray, as was the ancillary switchgear and the handbrake.

Ferrari 308 GTBi - 1980
Ferrari 308 GTBi - 1980

Chassis and Engine

The main European market 308 GTBi models had a tubular chassis with factory type reference F 106 BB 100. Disc brakes, with independent suspension via wishbones, coil springs, and hydraulic shock absorbers, were provided all round, with front and rear anti roll bars. All models were numbered in the Ferrari odd number road car chassis sequence, with both right and left hand drive available. Production ran from 1980 through to 1982, during which time 494 examples were produced in the chassis number range 31327 to 43059.

The transversely mid-mounted aluminium V8 engine was essentially of the same design as that used in the preceding 308 GTB model, but with a fuel injection system replacing the quadruple twin choke carburettors fitted to the former. It was of a 90 degree configuration, with belt driven twin overhead camshafts per bank, having a total capacity of 2926cc, with a bore and stroke of 81mm x 71mm, bearing factory type reference F 106 BB 000 for European market cars. The engine was coupled in unit with the all synchromesh five speed transmission assembly, which was below, and to the rear of the engine’s sump.

The gear and final drive ratios were altered to suit the revised characteristics of the fuel injected engine. It was fitted with a Bosch K Jetronic fuel injection system, coupled to a Marelli MED 803A Digiplex electronic ignition system, incorporating a coil, distributor and ignition module to serve each bank of cylinders.

From this model onwards all world market 308 series cars were fitted with wet sump lubrication. The claimed power output was 214bhp for European market models, and 205bhp for US market examples, which were fitted with power sapping emission control equipment.

Specifications

V8  Engine

Type rear, transverse, 90° V8
Bore/stroke 81 x 71 mm
Unitary displacement 365.86 cc
Total displacement 2926.90 cc
Compression ratio 8.8 : 1
Maximum power 157 kW (214 hp) at 6600 rpm
Power per litre 73 CV/l
Maximum torque 243 Nm (24.8 kgm) at 4600 rpm
Valve actuation twin overhead camshafts per bank, two valves per cylinder
Fuel feed Bosch K-Jetronic injection
Ignition electronic, single spark plug per cylinder
Lubrication wet sump
Clutch single-plate
Frame tubular steel
Front suspension independent, unequal-length wishbones, coil springs over telescopic shock absorbers, anti-roll bar
Rear suspension independent, unequal-length wishbones, coil springs over telescopic shock absorbers, anti-roll bar
Brakes discs
Transmission 5-speed + reverse
Steering rack-and-pinion
Fuel tank capacity 74 litres
Front tyres 205/70 VR 14
Rear tyres 205/70 VR 14
Type two-seater berlinetta
Length 4230 mm
Width 1720 mm
Height 1120 mm
Wheelbase 2340 mm
Front track 1460 mm
Rear track 1460 mm
Weight 1286 kg (dry)
Top speed 240 km/h
Acceleration 0-100 km/h -
0-400 m -
0-1000 m -