[MacGyver] [Lou Wozniak] is on a mission to build an internal combustion engine using only hardware ... which make his carburetor with a valve pointing straight up as the choke.

We had no idea that what’s needed to convert an internal combustion engine to steam power is actually ... There is also a check valve. In the video after the break [David] shows the hunk of ...

While the poppet valves work well at low speeds, they are unreliable at high engine speeds ... a design of valve for the fourcycle internal combustion motor, a design in which all the inherent ...

At bottom-dead-center (BDC) the inlet valve ... the exhaust valve is open and the combustion products are expelled from the cylinder. The sequence shown on the next page represents this behavior for a ...

It is a shrine to the internal combustion engine and, to a lesser extent ... fuelling and even valve timing, but still only get a gain of 15bhp. The next step is to fit new intake systems and ...