A twin-turbo and a twin-scroll turbo, for instance, can easily be confused for each other as they're both very similar — and very different. A twin-turbo, as speed-hungry petrolheads will know ...

AN's unnamed sources indicate that this engine will use a twin-scroll turbocharger and a new direct-injection system that will help give the engine an estimated 280 horsepower and torque that ...

Featuring a breakthrough combination of water-cooled cylinder head, integrated exhaust manifold and twin scroll turbocharger, this all-new Lexus 2.0-litre turbo engine delivers fast throttle ...

To begin with, the turbocharger itself is a twin-scroll unit, chosen over a supercharger and single-scroll unit because its low back pressure is suited to the MX-5’s high compression ratio ...