Biturbo S - 1983 to 1986
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) |
| Length-Width-Height | |
| 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) |
| Reduction | |
| 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) |