Biturbo i - 1986 to 1990
The Biturbo i featured Weber-Marelli fuel injection which improved the cold running, driveability, smoothness and exhaust emissions of the original, single twin-choke Weber carburetted Biturbo. The sequential multi-point injection and ignition was electronically controlled, with the engine running on constant over-boost.
Introduced in the autumn of 1986, the car differed from the carburettor version for its restyled wheels and its oval dashboard binnacle with the famous golden clock atop the centre console. It was produced until July 1986, reaching a total of 683 units.
Technical data
| 0-60 mph | 0 to 100 km/h in 6.1sec. |
| Bodywork | three-box two-door coupé seating five |
| Bore and stroke | 82x63 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 | Weber Marelli injection, two IHI water-cooled turbos |
| Fuel tank | 17.58 Imp. gal. (80 litres) |
| Gear ratios | |
| 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 | 185 bhp at 6,000 rpm |
| Maximum torque | 26 kgm (188.5 lbs/ft) at 3,500 rpm |
| Model | Biturbo i |
| One mile | 0 to 1000m in 27.6 sec |
| Production dates | 1986-1990 |
| Production start | 1986 |
| Quarter mile | |
| Rear Tyres | |
| Rear suspension | semi-trailing rear arms mounted on a rear subframe, coil springs, dual-rate pressurised 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 | over 136.5 mph (220 km/h) |
| Total displacement | 1,996 cc |
| Transmission | 5-speed (ZF) + reverse, rear-wheel drive, Sensitork differential |
| Tyres | fr/rear 195/60 VR 14 MXV (Michelin) |
| Weight distribution | |
| Wheelbase | 98.97 in. (2,514 mm) |
| Wheels | alloy, 6" J x 14" |
| Width | 67.48 in. (1,714 mm) |