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 mph 0 to 100 km/h in 6.5 sec.
Bodywork three-box two-door coupé seating five
Bore and stroke 82 x 63 mm
Brakes discs all round, dual circuit, servo-assisted, additional drums on rear wheels for handbrake
Brakes front
Brakes rear
Chassis monocoque steel construction
Compression ratio 7,8:1
Cooling system water-cooled, centrifugal pump
Displacements (unitary)
Dry weight 2,394 lbs (1,086 kg)
Engine 90° V6
Engine weight
First race
Front Tyres
Front suspension MacPherson struts, dual-rate telescopic dampers, coil springs, anti-roll bar
Front track 55.91 in (1420 mm)
Fuel & lubricant
Fuel feed two IHI turbos with twin intercoolers, a single Weber 36 DCNVH 16/100 twin-choke carburettor, MABC (Maserati Automatic Boost Control)
Fuel tank 13.41 Imp. gal. (61 litres)
Gear ratios I=3,42 II=1,94 III=1,39 IV=1,00 V=0,79 R=3,66
Height 51.38 in. (1,305 mm)
Ignition electronic
Kerb weight
Length 163.50 in. (4,153 mm)
Lubrication full-flow filter lubrication
Maximum power 205 bhp at 6500 rpm
Maximum torque 25.8 kgm (187 lbs/ft) at 3,200 rpm
Model Biturbo S
One mile 0 to 1000m. in 28.9 sec.
Production dates 1983-1986
Production start 1983
Quarter mile
Rear Tyres
Rear suspension semi-trailing rear arms mounted on a rear subframe, coil springs, dual-rate hydraulic telescopic dampers
Rear track 56.34 in. (1431 mm)
Steering mechanical rack and pinion (power assistance to order)
Timing gear three valves per cylinder (two intake, one exhaust), twin overhead camshafts
Top speed 137.4 mph (221 km/h)
Total displacement 1995 cc
Transmission 5-speed ZF + reverse, rear-wheel drive
Tyres fr/rear 205/55 VR 14, Pirelli P7
Weight distribution
Wheelbase 98.97 in. (2,514 mm)
Wheels magnesium alloy, 6" 1/2 J x 14"
Width 67.48 in. (1,714 mm)