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London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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![]() D.P.Round wrote: WHAT ON EARTH ARE YOU ON ABOUT? YOU ARE OLIVER KEATING AND I CLAIM MY FIVE POUNDS. Your typical yank engine has 8 cylinders, pushrods and is stifled by a load of emissions gear. Because of the extra cylinders there are much bigger frictional losses, and the emissions gear the engine is less efficient. They will burn more fuel to produce the same amount of energy as a decent 4 or 3 cylinder engine. And an electric car doesn't get any more efficient just because it's in Europe rather than America. Facts please not hot air. Find me the efficiency of an European 4 pot engine and we shall see. The laws of thermodynamics are pretty inflexible. Google gives me figures for the efficiency of the Prius' engine at 34%. The website you gave is: http://www.electroauto.com/info/pollmyth.shtml That page claims the efficiency of a car as 15%, however it doesn't explain what car this is, or how the figures were arrived at (efficiency of the engine? efficiency including air and tyre resistance?). As the website's advocating electric powered vehicles, I wouldn't be surprised if the figures are plucked from the crap end of the spectrum. |
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