Every year from 2007 through 2010 this engine won the Engine of the Year award for its class:
If proof were ever needed that engine collaboration between automotive manufacturers can succeed, BMW’s powertrain partnership with PSA Peugeot Citroën is a perfect example, spawning the award-winning 1.6-litre turbo unit.
Winner of the same International Engine of the Year Awards category in 2007, when it narrowly beat the 1.5-litre Toyota Prius, BMW and PSA’s four-cylinder has dominated the class this year, collecting 136 more points than its closest rival, the 1.8-litre TFSI Audi engine that powers a plethora of VW Group products…
Constructed from light alloy, the heart of the Mini Cooper S, Peugeot 207 and 308 features a twin-scroll turbocharger, gasoline direct injection, twin overhead camshafts, roller-type drag arms that have been optimised for minimum friction, and hydraulic valve play compensation elements. Furthermore, the outlet valves are filled with sodium to aid cooling, and the intake camshaft offers infinite phase adjustment, setting the engine’s valve timing to the driver’s requirements.
All this technology brings together power and economy in one appealing package for consumers: 175bhp at 5,500rpm and 260Nm of torque maintained from 1,600 to 5,000rpm is complemented with an average fuel consumption of 6.9L/100km (40.9mpg). “It’s full of technology, and is the best in its class for torque, power and pleasure,” concludes France’s Christophe Congrega. Read full article
Here’s a clear and easy to understand explanation of how a turbocharger works. Here’s the difference between a supercharger and a turbocharger.