Dodge’s Direct Connection offers drag racers and horsepower junkies the opportunity to buy the same parts that power the brand’s Scat Pak sportsman racers, including full crate engines. At this year’s ...

There's nothing pragmatic about a Roots-style blower. It's a big, bulky monster that requires hacking up the hood. It's also a technological simpleton, predating Larry King. Worst of all, it's ...

01] Steel shafts are pressed into the ends of the rotors and pinned in place. A No. 6 taper pin is used for engines making less than 2,500 hp, and a No. 8 pin is used for more serious stuff. The ...