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Subaru Boxer Engine

What is a Subaru boxer engine and how is it different than the engine in a mortal car? 





 
See how the cylinders lie flat?

See how tall the inline engine is? 
Ever tried standing up in a canoe?

 
This V configuration is also quite top heavy.
 







In most cars built nowadays, the cylinders that generate power are arranged like wine bottles standing straight up.  This is an "in-line" configuration.  In a "V6" or a "V8," the cylinders are arranged at an angle, like tilted wine bottles in the shape of a V.  In a Subaru boxer engine, the cylinders lie flat. When the engine is on, the pistons moving inside the cylinders pass each other like arms of sparring boxers, hence the name.  Only Porsche and Subaru use a boxer engine, and they choose it for its ability to generate a lot of power from a small, light package that can be mounted low in the vehicle for great handling.

Boxer engines are still commonly used in aircraft applications because they generate a lot of power from a light engine, and they are extremely reliable. 
Subaru was originally an aircraft manufacturer, so when they broke into the car business they installed an airplane engine in a car...and the rest is history!







One minute video that explains the technology:







Benefits of the Subaru Boxer Engine:

  • Opposing cylinders cancel out vibration without the need for the additional parts and the extra weight of balance shafts.
  • Flat design fits low in the car, keeping the center of gravity low for better handling.  Also, low mounting means that a catastrophic front collision sends the engine under the passengers instead of into their bodies.
  • Fewer parts means fewer repairs and greater reliability.  
  • Smaller, lighter engine keeps vehicle weight low and fuel economy high. 
  • Symmetrical design mates elegantly with the all wheel drive system, keeping the car balanced and simple.









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Planet explains the benefits of Subaru's Boxer engine design to new car buyers in Boston, North Shore, Cambridge, Brockton, and Plymouth. 

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