Posted by Gerald J. on June 02, 2008 at 21:32:19 from (4.254.70.153):
In Reply to: hybrid cars posted by farmer boy on June 02, 2008 at 18:27:42:
Friend has an imported hybrid mini SUV. Gets all of 30 MPG. I get that or slightly better with my stock gas VW Golf that I bought with 50K miles on it for $10,400. The price difference to a Prius buys a lot of fuel.
Engine in the Prius is not a standard 4 cycle engine. It has a modified cycle that gets it more efficiency. Another friend with a Prius claims 60 mpg with 4 adults on long trips (like Iowa to Pennsylvania). The Prius engine has a 12:1 compression ratio, but that would ping on regular gas so the intake valve is held open for about half the compression stroke making it compress 6:1 but it gets to expand the burning fuel over 12:1 and that extracts more energy from the fuel.
That modified engine cycle and being able to run the engine at full load or not at all improves highway efficiency.
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Today's Featured Article - The Rescue of a Fordson F - by Anthony West. Introduction I live in the UK and have for many years restored Fordson tractors (in the main model N's). I have also restored and shown model F's, E 27N's, Field Marshall Series 2, David Brown Cropmasters and the old rey Fergeson T 20. At one time I had seven restored examples which were shown and used in ploughing matches. As most restorers, I have a number of war stories I can relate on a range of topics that may help other like minded and interested people. Perhaps my first p
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