80cc is the size of the piston (bore and stroke) and has little to do with horsepower. There are 80cc engines that only output 4 or 5 horsepower. There are racing 80cc engines that run on alcohol or methanol and output 20 horsepower.
An 80cc Yamaha raptor typically has 3.5 horsepower
depends on a few factors. compression, carb jet, airflow and exhaust, you can reach 7 horsepower in the right conditions.
how much engine oil goes in an 80cc dirt bike
The cubic centimeter displacement of an engine does not determine its horsepower.
There is not a direct answer to your question due to you are asking about engine size/displacement. The amount of "work" an engine can accomplish is related to the torque that is output from an engine. The amount of torque an 80cc engine can produce is also variable. For example, a screaming 2 stroke run at 12,000 rpm does not have much torque -- it relies on the engine momentum to do work. A 4 stroke 80cc engine would have more "torque" (but less horsepower) There is also a gearbox you have to include. A large reduction gearbox that turns slow for the high engine rpm could output hundreds of pounds of torque (foot pounds or pound feet) translating to pushing thousands of pounds.
CC is NOT correlated to Horsepower. Cc is merely the capacity of that engine, NO relationship to horsepower.
If you only use one piston ring on 80cc bike engine, the compression ration will be reduced.
The volume of an engine does not necessarily determine its horsepower. That being said, the average 350 cubic centimeter engine is about 40 horsepower.
11 kW = about 14.75 horsepower.
315 horsepower
13.93 horsepower for 209 cc engine