Ferrari 308 GT/M IMSA 1984-86

racer

Le Mans Winner

03-mar-2006 16:10

Ferrari 308 GT/M IMSA 1984-86

With the 246 and 308 GT4 Dino models, Ferrari created a niche between the Porsche 911 and the marque's own super-GTs. Where the original 206/246 Dinos were styled by Pininfarina, Ferrari commissioned Bertone for its replacement, the 308 GT4. Together with a dramatic change in styling, the new Dino received a three litre V8 engine. Like it's predecessor, the 308's engine was mounted transversely behind the passenger compartment.

Although the performance increased, the cheapest Ferrari in the line up was not all well liked. The Bertone styled body was to blame, due to its four person design. This 2+2 concept conflicted with the mid-engine layout of the small sportscar and required a relatively long wheelbase. Bertone is often blamed for the unpopularity of the Ferrari 308 GT4 Dino, but it is quite possible that Pininfarina would not have faired any better with the awkward 2+2 seating requirement.

To complement the 2+2 V8, Ferrari launched a two seater V8 coupe at the 1975 Paris Motorshow. For this model the 'Dino' name was dropped and it was simply known as the 308 GTB. Pininfarina designed the sharp body of the 308 GTB much along the lines of the 365 GT4 BB. To save weight, the entire body was constructed from fibreglass, or 'vetroresina' in Italian. It featured a traditional tubular chassis, which was suspended independently all around by wishbones. The four-carburetor dry sump engine was good for 255 bhp.

The reduced weight of the fibreglass body however came at a manufacturing cost, which lead to an all-steel replacement in 1977. Together with the fibreglass, the dry-sump lubrication was replaced by a more conventional wet-sump. As expected, these changes resulted in a slight performance drop. The line-up was also expanded with a targa bodied GTS model. In 1980, fuel injection replaced the Weber carbs and two years later a four valve per cylinder (Quattro Valvole) version was introduced. A final revision resulted in the 328 GTB/S in 1985, which was Ferrari's last transversly engined GT.

Motor racing has always been a major interest of the Ferrari works, and the marque's customers. Although Ferrari had officially withdrawn from all motor racing except F1, the factory occasionally supported private efforts through the 'back door'. A great example of this were the Le Mans class winning 'Daytona' Competiziones. With the 308 GTB as a base, Ferrari specialist Michelotto constructed the 308 GTB Group 4 rally version. Fifteen of these racers were constructed and rallied with considerable success.

The last incarnation of the 308 was the very exotic 308 IMSA or 308 GTB/M, constructed by Michelotto to compete in the Group B rally class. Under the silhouette body, the engine was mounted longitudinal for a better weight distribution. Two were constructed by Michelotto and one assembled from parts in The Netherlands. It was entered in only one race, the 1984 Monza International Rally, where it lead until a puncture threw it down the leaderboard. It's main claim to fame is its styling, which was further develop to eventually result in the F40.

Specifications
Country of origin: Italy
Years of production: 1984 - 1986
Numbers built: 3
Body design: Pininfarina
Weight: 840 kilo / 1851.9 lbs

Drivetrain
Engine: Type F115A 90º V 8
Engine Location: Mid , longitudinally mounted
Displacement: 2.927 liter / 178.6 cu in
Valvetrain: 4 valves / cylinder, DOHC
Fuel feed: Bosch Fuel injection
Aspiration: Naturally Aspirated
Gearbox: 5 speed Manual
Drive: Rear wheel drive

Performance
Power: 363 bhp / 271 KW @ 8500 rpm
BHP/Liter: 124 bhp / liter
Power to weight ratio: 0.43 bhp / kg
Top Speed: 270 km/h / 168 mph

Texto extraído de Ultimatecarpage

racer

Le Mans Winner

03-mar-2006 16:11

Ferrari 308 GT/M IMSA
1984-86

Editado: 03-mar-2006 21:40 -

racer

Le Mans Winner

03-mar-2006 16:11

Editado: 03-mar-2006 16:31 -

racer

Le Mans Winner

03-mar-2006 16:12

Sr.Pininfarina

ForoCoches: Miembro

03-mar-2006 16:52

vaya tengo problemas en la conexion y no veo las fotos...de todas maneras me lo imagino...

GRacias !!!!!!!!!!!!!!!!!!

(555

ForoCoches: Miembro

03-mar-2006 17:24

Tremendo, como siempre

Omowree

Hasta siempre Pepe!

03-mar-2006 18:54

No lo habia visto nunca! Es como la version pequeña del 512 BB LM

Saludos!

aristoi

:-}

03-mar-2006 19:02

es bastante raro, si no fuese por el simbolo no diría que es un ferrari

racer

Le Mans Winner

03-mar-2006 21:42

Ya he terminado de subir todas las fotos

Cita de Sr.PININFARINA

vaya tengo problemas en la conexion y no veo las fotos...de todas maneras me lo imagino...

GRacias !!!!!!!!!!!!!!!!!!

Q extraño... y eso las fotos están guardadas en la galería del foro

Sr.Pininfarina

ForoCoches: Miembro

05-mar-2006 01:47

#10

Ya veo jejejeje, joder que maquina...aunque se me hace raro...parece como si llevara gafas jajaja, lo digo por esas carcasas de plasitco de los cubrefaros redodnos...

Saludos.

BMW E21

ForoCoches: Miembro

05-mar-2006 02:06

#11

Hubo otro 308 tambien preparado para otro campeonato que fue la base del F40, os suena algo asi, recuerdo haber visto algo no se donde

(555

ForoCoches: Miembro

05-mar-2006 02:23

#12

Cita de BMW E21

Hubo otro 308 tambien preparado para otro campeonato que fue la base del F40, os suena algo asi, recuerdo haber visto algo no se donde

Si, ya se cual dices (el que adjunto en la foto). Ese coche es el proyecto de Ferrari de hacer un Gr.B para rallyes. Que al final se quedó en nada y partieron de él para hacer el F40. Creo que la historia es así más o menos.
Ahora solo encuentro esta foto.

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