Flow is controlled by either throttling or diverting it. Throttling involves reducing orifice size until all of the flow cannot pass through the orifice; bypassing involves routing part of the flow ...

It is easy to take valves for granted. They have been used since the days of the Roman Empire and designs are pretty routine, so people tend to assume that a standard valve will do the job. But that ...

The art of creating great cylinder heads includes many different things, but a large portion of it comes from lots of time spent with a grinder in hand and in front of a flow bench, determining just ...