Biturbo S - 1983 to 1986

Biturbo S

Presented in Rome on July 23rd 1983, the Biturbo S was characterized by its two-tone paint scheme (silver or red over grey lower-body) with blacked-out chrome trim. The seats were trimmed in a special Jacquard cloth designed by Missoni.

Lowered suspensions with wider tyres. Twin intercoolers fed by NACA ducts on the bonnet, boosting the 2-litre unit to 205 hp (2nd series SII with 210 hp). 1,038 of the original Biturbo S and SII were made until October 1986.

Technical data

0-60 mph0 to 100 km/h in 6.5 sec.
Bodyworkthree-box two-door coupé seating five
Bore and stroke82 x 63 mm
Brakesdiscs all round, dual circuit, servo-assisted, additional drums on rear wheels for handbrake
Brakes front
Brakes rear
Chassismonocoque steel construction
Compression ratio7,8:1
Cooling systemwater-cooled, centrifugal pump
Displacements (unitary)
Dry weight2,394 lbs (1,086 kg)
Engine90° V6
Engine weight
First race
Front Tyres
Front suspensionMacPherson struts, dual-rate telescopic dampers, coil springs, anti-roll bar
Front track55.91 in (1420 mm)
Fuel & lubricant
Fuel feedtwo IHI turbos with twin intercoolers, a single Weber 36 DCNVH 16/100 twin-choke carburettor, MABC (Maserati Automatic Boost Control)
Fuel tank13.41 Imp. gal. (61 litres)
Gear ratiosI=3,42 II=1,94 III=1,39 IV=1,00 V=0,79 R=3,66
Height51.38 in. (1,305 mm)
Kerb weight
Length163.50 in. (4,153 mm)
Lubricationfull-flow filter lubrication
Maximum power205 bhp at 6500 rpm
Maximum torque25.8 kgm (187 lbs/ft) at 3,200 rpm
ModelBiturbo S
One mile0 to 1000m. in 28.9 sec.
Production dates1983-1986
Production start1983
Quarter mile
Rear Tyres
Rear suspensionsemi-trailing rear arms mounted on a rear subframe, coil springs, dual-rate hydraulic telescopic dampers
Rear track56.34 in. (1431 mm)
Steeringmechanical rack and pinion (power assistance to order)
Timing gearthree valves per cylinder (two intake, one exhaust), twin overhead camshafts
Top speed137.4 mph (221 km/h)
Total displacement1995 cc
Transmission5-speed ZF + reverse, rear-wheel drive
Tyresfr/rear 205/55 VR 14, Pirelli P7
Weight distribution
Wheelbase98.97 in. (2,514 mm)
Wheelsmagnesium alloy, 6" 1/2 J x 14"
Width67.48 in. (1,714 mm)