Maserati Bora 4.7

1971 to 1978

 Powered by Maserati’s proven 4.7 litre 90° V8 and mounted longitudinally, it was a true supercar which promised to fully maintain the company’s core ethos of class, comfort and refinement. Judging by the critical acclaim it received throughout this period, and still continues to generate today, it delivered.

After the success of the Ghibli, Maserati once again turned to Giorgetto Giugiaro and his newly founded Italdesign studio to style the new model named after a brisk breeze off of the Eastern Adriatic coast. Pietro Frua also submitted a full-size mock-up, but Giugiaro’s proposal proved to better encapsulate the modern era whilst concurrently fitting in harmoniously with other models in the range. The bodies were produced in Modena by Officine Padane. The 5-speed ZF gearbox was mounted in a sub-frame together with the rear suspension.
With Maserati now under Citroën ownership, the Bora made use of the French manufacturer’s parts bin, so that
hydraulics operated the brakes, pop-up headlamps, driver seat and the adjustable pedal block. The 310 hp output (300 hp in America due to restrictions on emissions) permitted a top speed of 260 km/h (162 mph). At the end of 1971 Giugiaro presented a seminal concept car based on the Bora: the Boomerang.

Technical specifications

Model Bora 4.7
Maserati internal code tipo AM117
Production start 1971
Number Produced 289
Ignition Bosch coil ignition and distributor
Lubrication concentric gear pump
Transmission ZF 5-speed + reverse synchromesh, rear wheel drive, single dry plate clutch, self-locking differential
Reduction 0,044641204
Gear ratios I=2.58; II=1.52; III=1.04; IV=0.846; V=0.74; R=2.86
Chassis self-supporting body/chassis
Front suspension transversal deformable four-side with coil springs, telescopic shock absorbers and stabiliser bar
Rear suspension coil springs, telescopic shock absorbers and stabilizer bar
Brakes dual hydraulic high pressure circuit, second mechanical system on rear disks for parking
Brakes front 280 mm ventilated disks
Brakes rear 280 mm ventilated disks
Steering rack and pinion with dampers
Cooling system water cooled via a centrifugal pump and two electrically-driven fans
Length 170 inches (4,335 mm)
Width 69.6 inches (1.768 mm)
Height 44.6 inches (1,134 mm)
Wheelbase 102.3 inches (2,600 mm)
Front track 58 inches (1,474 mm)
Rear track 56.9 inches (1,447 mm)
Dry weight 3,306 lbs (1,500 Kg)
Kerb weight 4,034 lbs (1,830 Kg)
Tyres 215/70 VR 15 Michelin as standard, Pirelli radial as an option
Wheels 7 ½ / 15
Top speed 174 mph (280 kmh)
Bodywork 2-door 2-seater mid-engine coupé
Fuel tank 19.5 Imperial gallons / 25 US gallons (90 litres)
Range 400/500 km (320/400 miles)
0-62 mph 6.7 sec (0-100 kmh).
Production dates 1971-1978
Engine 90° V8, mounted longitudinally amidships
Bore and stroke 93.9x85 mm
Total displacement 4719 cc
Displacements (unitary) 588.628 cc
Compression ratio 8.05.01
Maximum power 310 bhp at 6,000 rpm
Maximum torque 47 Kgm at 4,200 rpm (341 lbs/ft)
Timing gear two valves per cylinder, twin overhead camshafts per cylinder bank
Fuel feed four vertical Weber 42 DCNF/14 carburettors, Bendix electric pump
Fuel & lubricant N.O 90/100 RM