Ferrari Mondial Quattrovalvole, cylinder heads with four valves per cylinder electrify the USA



In 1982 Ferrari decided to work hard to launch on the world market a prototype capable of providing, above all from the point of view of the pure power of the engine, significantly higher performance than the Mondial 8 version.


To improve the values ​​of this parameter, the Cavallino engineers focus mainly on the engine unit, presenting a frame model identical to the previous one, but equipped with four valves per cylinder.


It is from this peculiarity that the name of the new Prancing Horse car was born, called the Ferrari Mondial Quattrovalvole, which was immediately received in a decidedly positive way compared to the replaced Mondial 8.


The new model guarantees a power of 240 horsepower and is capable of reaching a maximum speed of 240 km / h; only with these two values ​​does the Quattrovalvole immediately become a decidedly attractive target, not only in Europe, but also overseas.


The new cylinder head, with four valves per cylinder, produces a significant increase in power output, consequently improving the car's performance on the road. The need to improve performance arose when the previous version received numerous criticisms, despite the dynamic qualities superior to any other prototype present at the time.


But increasing the engine power immediately arouses great enthusiasm from customers, especially in the USA, so much so that the American market will even absorb 80% of the entire production of the Mondial Quattrovalvole.


A year later Ferrari will launch the Cabriolet version of the Mondial Quattrovalvole, producing six hundred and twenty-nine units, which, relying on the absence of the roof, will end up with an increase in weight of only fifty-five kg.


The coupé version of the same model will also be very successful, so much so that 1.145 copies will be produced, of which one hundred and fifty-two with right-hand drive.


As in the case of the Mondial 8, the Mondial Quattrovalvole is presented maintaining the theme of the wedge-shaped bodywork and the radiator grille located under the bumper.



The shape of the car body, substantially, does not differ from that of the previous model even the front and rear angular bumpers in black plastic, the large trapezoidal air intake for the engine compartment located on the sides behind the doors, and the pair of optical groups circular hindquarters.


With the exception of the new Mondial Quattrovalvole lettering on the tail panel, which replaces the previous Mondial 8, the model presented in 1982 remains practically unchanged from the frame point of view, while the interior is slightly modified, mainly in the configuration of the central console: the latter will be extended forward up to the front bulkhead, incorporating the ventilation controls, while the radio is no longer placed behind the gear lever, but in the new position located in front of the gearshift, all with the intent to improve the driver's visibility.



The door panels are equipped with newly designed document pockets and renewed handles, while the steering wheel with the leather crown has full spokes, rather than perforated, in satin black.


The Mondial Quattrovalvole models destined for the main European markets are presented with a tubular frame marked with an internal reference number F 108 BL 100, to which there is a bolted rear sub frame designed to facilitate the removal of the engine, transmission and rear suspension assembly as a single unit, to facilitate maintenance interventions.


As in the contemporary two-seater models, the cars can be ordered according to customer needs, with right-hand drive or left-hand drive, and the available versions are specially adapted to meet the specifications of the markets for which they are intended.


The Mondial Cabriolet is produced entirely with chassis numbers below 75,000, a point which marks the beginning of the chassis numbering with even and odd numbers.


Therefore, all the cars made will have the frames numbered with odd numbers: from 1982 to 1985 the car will be produced in 1145 units, with chassis numbers from 41737 to 59131.


The engine of the Mondial Quattrovalvole comes with heads equipped with four cylinders each; in fact this is the only substantial difference that allows the engine of the Mondial Quattrovalvole to stand out from that of the Mondial 8.


The engine is equipped with Bosch K Jetronic injection and Marelli MED 803A Digiplex electronic ignition. The declared power for the cars destined for the main European markets reaches a value of 240 horsepower, while the units sold in the United States deliver 230 horsepower.


The drive unit configuration is 90 degrees, with double overhead camshafts per bank of cylinders driven by a toothed belt, and the total displacement is 2,926 cubic centimeters, with bore and stroke equal to 81 by 71 millimeters.



The internal reference number for the engines of cars destined for Europe is F 105 A 000. In the engine compartment, the drive unit of the Quattrovalvole can be recognized by the elegant and refined fusion of the intake box, red in color with a finish with fake cracking, aluminum fins and the Ferrari Quattrovalvole lettering.


The engine has a transverse position and contains in a single block the five-speed synchronized gearbox, located more precisely in the lower part behind the wet engine sump. Finally, the car is equipped with independent suspension with wishbones, coil springs, hydraulic shock absorbers and front and rear anti-roll bars.

DATA SHEET


Coupé, 2+2 seats

Length 4580 mm

Width 1790 mm

Height 1260 mm

Wheelbase 2650 mm

Front track 1495 mm

Rear track 1517 mm

Weight 1430 kg when empty


Engine


Rear, transverse, 8V 90°

Bore and stroke 81x71 mm

Unit displacement 365.86 cm³

Total displacement 2926.90 cm³

Compression ratio 9.2:1

Maximum power 176 kW (240 hp) at 7000 rpm

Specific power 82 hp/liter

Maximum torque 260 Nm (26.5 kgm) at 5000 rpm

Double camshaft distribution, four valves per cylinder

Bosch K-Jetronic injection power supply

Mono ignition, electronic

Wet sump

Single plate clutch

Frame


Tubular steel

Front suspension independent, wishbones, coil springs, telescopic shock absorbers, stabilizer bar

Rear suspension independent, wishbones, coil springs, telescopic shock absorbers, stabilizer bar

Disk brakes

Five-speed gearbox + RM

Steering with rack and pinion

Fuel tank capacity 87 liters

240/55 VR 390 front tires

240/55 VR 390 rear tires


Performance


Maximum speed 240 km/h

From 0 to 400 meters in 14.8 seconds

From 0 to 1000 meters in 27.5 seconds


Simone Pietro Zazza

  • Bianco Instagram Icona
  • Bianco YouTube Icona
  • Bianco Instagram Icona
  • Bianco Spotify Icona
  • Bianco Instagram Icona

Magazine

Who Are

© 2021 Osservatore Sportivo