Does anyone care to elaborate on the little horsepower vs big horsepower debate?eg;truck HP vs car HP.Are we clear on the difference between force and power?Should we go to a better system for expressing power output?KWs for example?it does get a little confusing(by the way thanks Carolyn)-Kevin

Best explanation yet.but can we agree it takes x amount of fuel through the prime mover to generate the required power? Which in a round about way has to do with the chemical energy contained in the fuel ?-Kevin

This DKW engine has 125cc and can produce over 20 hp This Yanmar diesel produces a similar horsepower but weighs as much as the DKW rider and all. This is a prima donna in the horse world http://www.arabianhorses.org/education/education_history_intro.asp This is a work horse [image] …

RK, that little DKW is awesome,that Yanmar is a good example of a state of the art Diesel engine at least the horse runs on unrefined grass. We love our infernal engines-but I dont know if my 140 HP Civic engine would move 2310 short tons a foot in a minute or not.I just feel that our rating system …

Sorry kmccune you still have the definitions muddled. If you push on a wall and it doesn’t move that’s force. If you push on a wall and it does move that’s work. Force times distance. How fast the wall moves is power. Force times distance/ time. Switching from HP to KW won’t help. Underneath the pri…

It seems to me that the manufacturers are marketing horsepower numbers that are only momentarily produced. The Yanmar and the 300 horsepower Cummins engines are built to deliver their rated power continuously until they are worn out and that might easily be in excess of 10,000 hours. The DKW and the…

Isn’t horsepower just part of the image. And image sells cars. The ad men make a great deal of color out of gray data. Mostly green.

That's can make for a great deal of fun but for reliable transportation such technology is somewhat of a hindrance. Hey, 100hp/L can be reliable. Look at the S2000 :wink:

well, let me ask this,does say 100 hp take the same amount of gas basically,regardless of engine configuration?-Kevin

The simple answer to your question is definitely not. Starting at the beginning, if you put 1 liter of ideal fuel air mixture at atmospheric pressure in a sealed container and ignite it, the heat released by combustion will raise the temperature and pressure inside the container. Measure the heat r…

Does anyone care to elaborate?

General Discussion

kmccune May 6, 2012, 5:10am 24

Gee thanks guys(I do know that a hydraulic jack can produce a lot of force .but scarcely any power-a starter motor is a torque monster with scarcely any horsepower) probaly its just me,but it seems that some of these descriptions are a bit gray-Kevin

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Does anyone care to elaborate?

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