I'm relatively new to motorcycles, my flat mate taught me how to drive his two Royal Enfields around New Delhi, and for the past year and a half I've been taking care of them as they break down ;)
Was just curious what the 'cc' actually means when you say a Hero Honda has 150 cc, or an Enfield as 350 cc, or a really beast Enfield has 500 cc. I know vaguely that more cc is more powerful, but am curious as to how one could actually measure cc.
cc is the size of the engine, in cubic centimeters - literally the volume of the cylinders. A larger cylinder can ingest more air (and more fuel), thus converting more energy per cycle than a smaller one, so making more power - assuming all other factors are the same, and there are many factors that affect power output.
You can measure it by a simple volume calculation - area of the piston (pi x radius squared) x stroke x number of cylinders.
The "swept volume" of one cylinder is given by :
pi * r^2 * L
r = cylinder radius (bore / 2 ) in centimetres L = stroke in centimetres
Then multiply by the number of cylinders (they will all be the same bore and stroke)
Example : Bullet 350 bore and stroke given as 70 mm ( 7.0 cm) bore and 90 mm (9.0 cm) stroke So : r = (7.0 / 2) 3.5 cm L = 9.0 cm Then : pi * 3.5 ^2 * 9.0 * 1 (cylinder) = 346.3606 cubic centimetres Note : the capacity is usually rounded, in this case to 350 cc
"cc" Stands for Cylinder Capacity or Cubic Centimeters. Luckily Cylinder Capacity is measured in Cubic Centimeters, so it's all good. As others have pointed out, bigger cylinders make more power because they can burn more fuel per stroke.
the actual meaning of cc is the cylinder capacity so larger the cylinder more area avalible for burning of fuel so the larger the space for the moment of piston is also provided in this case so more power will be generated when cc is larger
cc is nothing but the total displacement volume of a piston inside the cylinder. as cc increases, there will be more intake of air fuel mixture and output power ofthe engine will increase...
