The formula that works best only applies to the small newer normally aspirated (carbureted) 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:-Most engines are tuned down to a lower HP for better engine life. -It is common for the same cc engine to be built in 3 different HP versions with the highest rated being the maximized HP per cc version. That is how you see price and HP changes on the same cc engine made by the same company. -Some of the newest (2008 and newer) engines from Japan perform slightly better. A typical 150cc motor should equate tobetween 3.5 - 6 HP+ depending on tuning with 5 HP being the adv. The actual formula plots as a curve and is not linear and also does not apply to Max/High Performance engines like in motorcycles.
The Briggs & Stratton 158cc engine typically produces around 5.5 to 6.5 horsepower, depending on the specific model and application. This engine is commonly used in lawn mowers and other outdoor power equipment. For precise horsepower ratings, it's best to refer to the manufacturer's specifications for the particular model in question.
I'm looking to purchase a new lawnmower. It says it's 158cc. About how much horsepower is this?
horsepower is engine power. cubic centimetres is engine displacement. (sometimes proportional but) they are not directly related.
There is no direct relationship between the cylinder capacity of an engine and the horsepower that it can generate. It depends on the engine design, the fuel amongst other factors.
An engines cubic capacity cannot be converted, mathematically, to horsepower without a host of other information..
To convert cubic centimeters (cc) to horsepower, a general rule of thumb is that 1 horsepower is approximately equivalent to 15 cc in a gasoline engine. Therefore, to estimate the horsepower for a 342cc engine, you can divide 342 by 15, resulting in about 22.8 horsepower. Keep in mind that this is a rough estimate, as actual horsepower can vary based on engine design and efficiency.
"Robert Fogt" The amount of horsepower output by an engine depends on more than just the engine size. For example, a tricked out 4.7 liter engine will have more horsepower than an old stock 4.7 liter engine. You wont be able to convert directly between them. For new cars you may be able to find data sheets that lists both engine size and horsepower. Otherwise you would have to take it to a shop to be placed on a machine to measure it.
It is not possible to directly convert engine displacement (measured in cc) to horsepower. Horsepower is influenced by various factors such as engine efficiency, fuel type, and design. Generally, a 1100 cc engine might produce anywhere from 50 to 150 horsepower, depending on these factors.
I think it is somewhere around 50 horsepower, if I'm not mistaken.
You are trying to compare apples and donuts. 179cc is a size of engine that would have a fairly wide range of horsepowers. Horsepower is a power rating.
To convert cubic centimeters (cc) to horsepower, you can use the general approximation that 1 horsepower is roughly equivalent to 15 cc for gasoline engines. Therefore, to convert 500 cc to horsepower, you would divide 500 by 15, resulting in approximately 33.3 horsepower. Keep in mind that actual horsepower can vary based on engine design and efficiency.
Depends what specific model of engine it is... Try looking up the model of car on Wikipedia and convert the KW (Kilowatts) to horsepower through an online converter :)