Ferrari was so proud of its five-valve cylinder heads, it changed a naming convention that ran back over 25 years. For its previous mid-engine two-seaters, the three-digit name was derived from ...

Popping the hood of a new Mercedes-Benz 300SL Gullwing must have been quite an experience for most enthusiasts in the Fifties. For starters, the 3.0-liter straight-six sat canted at a fifty degree ...

A camshaft's intake closing point has more effect on engine performance than any of the other three opening and closing points. The earlier it occurs, the greater the low-rpm cranking pressure. Early ...

We Get Our Hands On One Of The First C&L Performance Three-Valve Intake Manifolds--It Added 27 RWHP. During the summer of 2008, C&L Performance made a surprise announcement--it was nearing completion ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

A few simple checks and tips can help ensure maximum peace of mind when buying a used GDI-powered car. The Gasoline Direct Injection (GDI) engine is marketed under different names by different ...

When it comes to the many variables of combustion inside an engine, engineers measure the timing of key events in degrees of crankshaft rotation, a relative frame of reference that remains constant ...