Part: 4 10,000 Rpm On The Engine Dyno And We Get...We last left this project with a three-part interview by our engine builder Larry Widmer, the man up to the challenge of building an engine capable ...

We're standing in the engine dyno room, watching through roughly a foot of safety glass as the Audi RS 7's 4.0-liter twin-turbo V-8 holds near redline. Its exhaust, from manifold to mufflers, glows a ...