Trim: Check the size of the turbo's inducer and exducer (this should be documented in the turbo's detail info in mm). Divide the inducer's value squared by the exducer's value squared, then ...

Among the new additions is the Porsche 911 Turbo Cabriolet (930), a slick ride suitable for only the biggest Samurai fan. This Porsche variant is basically a more stylish version of Johnny ...

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 ...