Unfortunately, most of these high-end ... and an electric motor, Young’s project still provides the best thrills internal ...

The springs were topped with Manley titanium retainers and steel locks. See All 44 Photos The plan was high rpm so a rock-solid stable valvetrain was imperative. To get there, the valvetrain was ...

The motor also boasts a power density of 13 kilowatts/kilogram and an efficiency of 98.5%, which GAC says, along with its maximum rpm, are “the highest in the world.” However, the power ...

He even gets his motor up to 12,500 rpm with his homebrewed drive circuit. Making your own motors can help you solve some difficult engineering challenges, like building motorized rollerblades.