The formula that works best only applies to the small newer normally aspirated (carburetor) 4 cycle engines. The ratios change slightly worse with altitude and slightly better with fuel injection and tuning. Most American mowers and the newer 4 cycle outboard motors fit into one of these two formulas:
Typical new carbureted engine well tuned:
1 x HP per each 25 cc
Fuel injected:
1 x HP per each 22 cc
Notes:
You need to know the cubic inch not hp to convert to cc.
hp
254ccis how many horse power
Horsepower and cubic centimetres belong to different measurement scales and cannot be directly converted. However a general rule of thumb is that 15 cc is approximately equal to 1 hp for smaller engines
The conversion between ml and cm cubic are given .On finding the relation we get as follows . 1 cc=1 ml.=0.88 cc or 0.88 mL.
There is none. A 133 cc engine can have varying hp depending on many things.
5 hp
13.6
I understand that a 250 cc engine is around a 15 hp motor, so a 277 cc engine calculates about 16.5hp. there is no direct conversion between cc and hp because cc is a volume and hp is a energy.
A little over 250cc The easiest conversion is to take the (hp x 42.3) = cc this of course is not exact but very very close... 253.8cc
The relationship between horsepower (HP) and engine displacement, measured in cubic centimeters (CC), is not a direct equivalence as they are measuring different aspects of an engine's performance. Horsepower is a unit of power, representing the rate at which work is done, while CC measures the total volume of the engine's cylinders. The conversion between HP and CC varies depending on the engine's design, efficiency, and other factors, making it impossible to provide a simple, fixed conversion rate between the two units.
There is no standard conversion from cc's to hp. But as a guide, 338cc = aprox 11hp
150 cc a hp
What is 5.5 hp in cc?
1 HP= 15 CC so 1001 HP= 15015 CC's
7hp
A 179 cc engine is around 5.5-6 horsepower. There's no hard and fast rules on cc to hp conversion there are too many variables.