How Do You Convert Horsepower To Cc's


12 Answers

Joe Gilbert Profile
Joe Gilbert answered
This is quite a difficult question to answer, as there are lots of factors involved, but as a general rule of the thumb, you would multiply the horsepower by between 10 to 15 to get the number of CCs. The reason why this is a difficult question to answer is because of two main reasons. The first is, that CCs and horsepower are two separate things. CC refers to the volume of the engine, whilst horsepower refers to the power output of the engine. Trying to convert volume into power, without knowing any other details, is nearly impossible. It would be like, trying to work out someone's weight by knowing what their hair colour is. Secondly, even though, there is a very rough formula for working out horsepower from CCs, there are far too many factors involved to provide an accurate general formula. The power output of an engine, is determined, not only by the volume size of the engine, but also the efficiency of the engine, the cleanliness, the quality of the components, the age, if the engine has a booster or some other performance enhancing mechanism, as well as many other minute and large factors. Basically, there are too many variables. The best way to find out what BHP (brake horsepower) output your vehicle has, you should contact the manufacturer of your vehicle, as they will have a record of how many BHP are there in your vehicle. However, factors such as age, wear and tear, dirt etc. Affect the power output of an engine, so a power test on a running road would be required to get a totally accurate read-out of BHP that your vehicle produces. In a modern car, one cubic inch of engine volume can equate to 1 brake horsepower, but this again, is an estimate.
Anonymous Profile
Anonymous answered
2 hp is equal to  how many c c's
Anonymous Profile
Anonymous answered
277 cc  to horsepower
lonnie moore Profile
lonnie moore answered
There is no direct conversion for this. Different engine designs make such a formula impossible. If you have a specific make, model and production date for your engine, then we should be able to figure out what horsepower you're dealing with.. Also be aware that as your engine ages with use, it's actual horsepower will fall below New Engine specs.
thanked the writer.
Anonymous commented
Thanks for your time and consideration, I would appreciate some direction as to a company that is able to supply me with engines or lead me to a engine manufacturer that can Power my new Re-Designed backpack Blower.
I am a business owner of a Lawn/landscape company for the past 28 years and have re-designed the Backpack Blower and I have tried diligently to inquire with the Blower company's to purchase their engines or take my new design on as an upgrade to their line of equipment and they have closed the door repeatedly.
There are over 500,000 Backpack Blowers sold in the USA alone not to include the Globe.I have diligently been designing This Blower that saves Time, man power and money ,it has taken over 10 years to reach this point and I need a Engine Power source that will run the apparatus.
I am using Shindaiwa 8510 using a 4 stroke mixed gas oil engine for my prototype(2 or 4 stroke will work).
It has a 79cc (4hp)engine that runs at 7200 plus rpm.
I am trying to find a engine supplier that has a comparable size engine that is powerful and light weight, 10 lbs or less that's ready to run.
Thank you for any suggestions, leads or other recommendations on engine sources that will work for this application.

Sincere Thanks in Advance
The Lord bless you
Anonymous Profile
Anonymous answered
I have no answer please tell
Anonymous Profile
Anonymous answered
There is no formula to convert horsepower to cc, as there are many variable factors, naturally aspirated, turbo, super charged, turbo and super charged, compression ratio, Petrol or diesel, number of cams, valves etc. HP can be converted to PS or KW.

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