Cylinder head porting is often equated with time and expense, and we've all heard horror stories about porting through the casting and ruining the cylinder head. For these reasons, many enthusiasts ...

Contrary to what you might have learned in bench racing, larger port size does not always mean more power. Port shape is the key to power and when that power becomes available. Cylinder-head porting ...

It might seem that the intake manifold is one of the simplest components on an engine. After all, the purpose of the intake is to provide a series of passages to join the carburetor with the intake ...

Wall-wetting due to liquid fuel film motion and fuel droplet impingement on combustion chamber walls is a major source of unbumed hydrocarbons (UBHC), and is a concern for oil dilution in PFI engines.

Previous studies have shown the importance of the in-cylinder flow field which exists prior to fuel injection on performance and emissions behavior of direct injected (DI) diesel engines. Key ...