The power output of a 150 cubic centimetre engine is around 10 horsepower. 1 horsepower equals between 15 and 17 cubic centimetres, according to SI Metric.
The volume of the cylinders within an engine is measured in cubic centimetres, which does not equal an accurate power output. Though the number of cylinders in an engine has a significant impact on its power production, it is not the only factor to consider. The total size of the engine, how effectively the engine is tuned, and the type of fuel used are all factors in determining the exact conversion between cubic centimetres and horsepower. The type of fuel used is an important consideration because it can have a significant impact on the engine’s horsepower. For example, a 150 cubic centimetre cylinder engine using a volatile fuel type like nitrous oxide has the potential to produce much more horsepower than a regular fuel engine.
There are also various different meanings of horsepower, such as brake horsepower and shaft horsepower. Shaft horsepower refers to diesel engines, whereas brake horsepower refers to the output before other aspects of the engine start restricting the overall power.