425 i - 1987 to 1989
From 1987, the 425 received the benefit of an injection system, which improved the engine's smoothness and cold-running. Together with the catalytic exhaust system, it helped bring emissions levels down.
Leather seats became standard. The Maserati Sensitork differential replaced the Salisbury-type of earlier versions, transfering up to 90% of the power to the wheel with the better adherence in slippery conditions.
Externally, the only touch distinguishing it from the 425 was the black facia adopted on the alloy wheels. 2372 cars were produced, combining the 425 and 425 i.
Technical data
| 0-60 mph | |
| Bodywork | 3-box 4-door saloon seating five |
| Bore and stroke | 91.6x63 mm |
| Brakes | discs all round, dual circuit, ATE system IH-type power assisted; rear drum brakes for emergency and parking |
| Brakes front | |
| Brakes rear | |
| Chassis | monocoque steel construction |
| Compression ratio | 7.4:1 |
| Cooling system | water-cooled, centrifugal pump |
| Displacements (unitary) | |
| Dry weight | 2,625 lbs (1,190 kg) |
| Engine | 90° V6, light alloy block and head with pressed-in liners |
| Engine weight | |
| First race | |
| Front Tyres | |
| Front suspension | MacPherson struts, hydraulic shock absorbers with coil springs, anti-roll bar |
| Front track | 56.77 in. (1442 mm) |
| Fuel & lubricant | |
| Fuel feed | two IHI water-cooled turbos |
| Fuel tank | 17.58 Imp. gal. (80 litres) |
| Gear ratios | |
| Height | 53.54 in. (1,360 mm) |
| Ignition | Weber electronic injection (Speed-Density), Marelli electronic ignition, catalyst emission control system |
| Kerb weight | |
| Length | 173.23 in. (4,400 mm) |
| Length-Width-Height | |
| Lubrication | full-flow filter lubrication |
| Maximum power | 188 bhp at 5,500 rpm |
| Maximum torque | 32.7 kgm (236.5 lbs/ft) at 3,000 rpm |
| Model | 425 i |
| One mile | |
| Production dates | 1987-1989 |
| Production start | 1987 |
| Quarter mile | |
| Rear Tyres | |
| Rear suspension | semi-trailing arms mounted on a rear subframe, hydraulic shock absorbers with coil springs |
| Rear track | 57.20 in. (1452 mm) |
| Reduction | |
| Steering | power-assisted rack and pinion |
| Timing gear | three valves per cylinder (two intake, one exhaust), twin overhead camshafts |
| Top speed | over 133.5 mph (215 km/h) |
| Total displacement | 2,491 cc |
| Transmission | 5-speed ZF+ reverse (3-speed automatic to order), rear-wheel drive, Maserati Sensitork differential; ratio: 3,31:1 |
| Tyres | fr/rear 205/60 VR 14 Michelin MXV |
| Weight distribution | |
| Wheelbase | 102.36 in. (2,600 mm) |
| Wheels | light alloy, 6.5" J x 14" |
| Width | 68.11 in. (1,730 mm) |