Street-car turbo people, this one's for you. We all know that adding any sort of restrictor-like a muffler-is going to hurt power on a turbo motor. We also know that sometimes it just makes ...

Roadkill's David Freiburger and Roadkill Garage's Steve Dulcich host of MotorTrend's Engine Masters! Episode 53, featuring an intake shootout, is now available; subscriptions to the MotorTrend App ...

With so many oil weights and combinations on the market, the crew sets out to show how different weights behave, perform and react inside your engine under operating conditions. While it only ...

You understand the importance of getting a good air/fuel charge into thecombustion chamber. It's not just quantity; it's also velocity and ahomogenous air/fuel mixture. To get that, you have invested ...