Packless solenoid valve from PneuMagnetis lets solenoids go from electric to less expensive and safer pneumatic operation. Actuators from PneuMagnetic LLC, Quakertown, Pa. (www.pneumagnetic.com), can ...

A burnout is pretty easy to do, but it's a lot easier with a line-lock. A line-lock allows you to lock the front brakes independently of the rear brakes, so the car stays put while the tires smolder.

It's got a hot engine with a set of headers that wrap tightly under the chassis, and you're having a blast cruising around town. But you turn your ignition key to restart your ride and nothing happens ...