The Link Between A 212cc and 6.5hp Mini Bike Engine

Is there a link between a 212cc and 6.5 hp engine?

To start with, any engine is referred to both in cc and hp to denote its power and capacity. However, the common trend is to refer to an engine in cc only, even when its power is being indicated. This is because manufacturers invariably refer to an engine in cc only and this is followed by the dealers of spare parts and owners down the line. But as will be seen in this post, it is not right to use the terms cc and hp interchangeably.

Let’s take the example of a 6.5 hp engine that roughly is the equivalent of 212cc. But there is a world of difference between the two. HP is a measure of the power of the engine and cc or cubic centimeters is a measure of the volume displaced by the cylinders of the engine. The reason why both are referred to in the same breath is that the more or lower the horsepower of the engine, the more or lower will be the displacement volume of the cylinders. Hence, a displacement of 212cc of the cylinders roughly translates into a 6.5 hp engine power.

Even then, it is not as straightforward as this equation. Keeping the same 212cc cylinders, the engine power can be increased by tweaking certain parts of a mini bike. Simply by changing the placement of the valves, the compression ratio of the motor, the type of fuel used, and the fuel/carburetor injection system, the power of an engine can be dramatically increased. All these have a significant effect on the power levels of a 6.5 hp engine.