Flatplane

The flatplane or flat-plane is a type of crankshaft for use in engines with a 180 Degree angle between crank throws.[1]

The Flat-plane is used in V configuration engines generally with 8 cylinders.[1]

Front view of a V8 flat plane crankshaft with corresponding connecting rod positions

V8 Crankshaft

The Flat-plane is a design that is no longer used in mass production road cars as it carries more vibrations and is inherently much louder than a Crossplane crankshaft.[2]

The way in which a Flat-plane works within a V8 engine is more like 2 in-line 4 cylinder engines mated together [3] with the firing order of each order being in a Right-Left-Right-Left-Right-Left-Right-Left pattern.[4] Being in this in-line 4 configuration allows for the engine to rev much higher up to 8000rpm making it more suitable for racing engines.

References

  1. 1 2 "What Is A Flat-Plane Crank And Why Is It So Loud?". Retrieved 19 April 2016.
  2. ↑ "Full text of "Motor January 2016"". Retrieved 19 April 2016.
  3. ↑ http://jalopnik.com/what-is-a-flat-plane-crank-and-why-is-it-so-loud-an-ex-1659688239
  4. ↑ http://www.projectm71.com/Cross_FlatPlane.htm
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