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Biturbo

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DESCRIPTION
While 2.0-liter versions of the Biturbo were reserved for the Italian market, a 2.5-liter version developed for export was presented in 1983. The three-valve-per-cylinder V6 engine had an increased bore to expand its capacity to 2,491cc. Cylinder liners of cast iron replaced aluminum, and this engine did not rely on intercoolers for the two IHI turbochargers. The Biturbo 2500 maintained the Torsen limited-slip differential from the previous models (a world-first on a production car), while a more powerful version was named Biturbo ES. In 1987, the Biturbo 2500 and Biturbo ES adopted fuel injection and the name was changed to Biturbo Si 2500.
SPECIFICATION

Biturbo

E

Biturbo

ES

Biturbo

Si 2500
Production years
1983 - 1985
Displacement
2,491
cc
Top speed
215
KM/H
Model code
Tipo AM331
Body type
2-door, 5-seater three-box coupé
Design
Pierangelo Andreani
Number produced
Circa 6,500 (all)
Chassis
Monocoque steel construction
Dry weight
1,161kg
Engine configuration
90° V6, three valves per cylinder (two intake, one exhaust), single overhead camshaft, twin-turbo
Maximum power
185hp @ 5,500rpm
Production years
1984 - 1988
Displacement
2,491
cc
Top speed
221
KM/H
Model code
Tipo AM331
Body type
2-door, 5-seater three-box coupé
Design
Pierangelo Andreani
Number produced
Circa 6,500 (all)
Chassis
Monocoque steel construction
Dry weight
1,161kg
Engine configuration
90° V6, three valves per cylinder (two intake, one exhaust), single overhead camshaft, twin-turbo
Maximum power
196hp @ 5,000rpm
Production years
1987 - 1991
Displacement
2,491
cc
Top speed
215
KM/H
Model code
Tipo AM331
Body type
2-door, 5-seater three-box coupé
Design
Pierangelo Andreani
Number produced
Circa 6,500 (all)
Chassis
Monocoque steel construction
Dry weight
1,161kg
Engine configuration
90° V6, three valves per cylinder (two intake, one exhaust), single overhead camshaft, twin-turbo
Maximum power
188hp @ 5,500rpm
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