Heat is a byproduct of combustion. Both air-cooled and water-cooled engines need to dissipate that heat to keep the engine from running too hot. Can piston rings play a role in managing that heat?

Sandia National Laboratory led by Sandia researcher Peter Van Blarigan that has been testing physical components of free-piston engines which could be 50% efficient. This is about twice as good as ...

Give them the results of a TDC valve-drop static clearance test, and Comp Cam's techs can calculate the piston-to-valve clearance for any of its cams at any degree of rotation. This is especially ...

When you consider the crazy monkey motion of reciprocating internal combustion engines it is remarkable they work as well as they do. You have eight pistons and connecting rods doing a “do-si-do” ...

Utah's Transcend Energy Group claims it has a relatively simple and cheap way to dramatically increase the torque output of combustion engines, simply by replacing the standard connecting rods with ...