Most aspects of a cylinder head are relatively straightforward and easily grasped. Valve size, deck thickness and combustion chamber volume are often topics of discussion and qualify the design's ...

HOT ROD’s archives are chock-full of brilliant tech reports that truly are timeless. This one, drafted by Jim McFarland for our February 1972 issue, provides an extensive look at how important airflow ...

Inlet unstart is a particularly critical issue associated with scramjets. That is the upstream displacement or disgorging of the original inlet shock system. Large flow spillage can be caused by the ...