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08-15-2016, 05:09 PM
A practical means of varying an engine’s compression ratio has been a goal of automakers for ages. How hard the air—and sometimes fuel—is squeezed before ignition, plays a crucial role in overall efficiency. Varying the compression ratio in a running engine is daunting because the ideal ratio changes with speed and load. One expedient now […]
More... (http://feedproxy.google.com/~r/caranddriver/blog/~3/AT5j3QCXOyw/)
More... (http://feedproxy.google.com/~r/caranddriver/blog/~3/AT5j3QCXOyw/)