Engines Exposed: What is a Flat-Plane Crankshaft?
Engines Exposed: What is a Flat-Plane Crankshaft?
"
Flat-plane engines
This term has become one of the buzz words of 2015 thanks to Ford’s stellar Voodoo V8 (
covered previously by us) found in the Mustang GT350. With 526 horsepower and a soundtrack
like this, it’s easy to see why it has been attracting attention. Rather than the loping burble of a traditional V8, the
sound of a flat-plane engine is much tighter. It’s a tenor to the cross-plane V8’s baritone. However, flat-plane production engines are not a new concept, as Ferrari and Lotus have been using them for years.
The engine in the 458 Italia, for instance, is a flat-plane crank engine. That’s the real term as it describes the construction of the
crankshaft of the engine. Before we dive into the technical details, opportunities, and limitations of flat-plane crankshaft engines, watch
the short animation below that displays a flat-plane crankshaft and a cross-plane crankshaft, which is what most V8s use, in action ".