Where does the power go? New driveline engineering ideas are emerging, but are they any more or less efficient?(TECHPROF.)

From: Snow Goer | Date: January 1, 2005| Author: | Copyright information

One question that comes up all the time has to do with the effects of friction and a snowmobile's power lost between the ignition of the fuel and the power that makes it to the ground. From the moment the spark starts the fire in our engines, energy starts to disappear from heat losses, friction losses and mechanical and aerodynamic drag. The heat energy contained in one pound of gasoline is between 19,000 and 20,000 Btu. An energy release of 2,547 Btu/hour = one horsepower. Of the 20,000 Btu released during the oxidation of one pound of gasoline, less than one-third will end up ...

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