BorgWarner has designed an optimally tuned turbocharger for Fiat Powertrain Technologies' (FPT) new high-torque, 1.8-liter direct-injection gasoline engine. Providing excellent response in the lower engine speed range, the innovative BorgWarner turbocharger design allows the engine to achieve a maximum torque of 320 Nm at 1400 rpm - a worldwide benchmark - while eliminating the mechanical compressor required by standard turbochargers. The result: a less expensive, less complex design that offers improved fuel economy without sacrificing pull-away dynamics.
"Once again, BorgWarner has achieved a 'first' in turbocharger design, confirming our technological leadership in all aspects of turbocharging," says Roger Wood, BorgWarner Engine Group President. "We are pleased to supply partners like Fiat with state-of-the-art technologies that greatly enhance driving performance and improve fuel economy."
For the first time, BorgWarner used innovative welding technology to fix the cast manifold directly to the turbine housing, allowing each to be optimized separately, the company reports. The turbine housing is made of a temperature-resistant alloy while the manifold is produced with a less costly alloy.
In addition, the company says optimized turbo with a boost pressure control valve is less expensive and complex, which contributes to improved fuel economy.
Introduced at the Geneva Motor Show, the new engine complies with the Euro 5 emissions standard and is available in the Lancia Delta and Alfa Romeo 159. Even with its impressive torque, the Lancia Delta attains 30 mpg (7.8 liters/100 km) and emits 185 grams of CO2 per km. The Alfa 159's figures are similar at 29 mpg (8.1 liters/100 km) and 189 grams of CO2 per km.
For more information, visit www.borgwarner.com.
