Re:25% of Cars Cause 90% of Automobile Air Pollution
by maxerickson on Thursday May 07, 2015 @12:24PM
(#9506243)
I guess the average carbureted vehicle on the road today is being run by someone with the mindset that the engine should run great and develop lots of power. Back in the day more people would have set them up leaner.
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Re:25% of Cars Cause 90% of Automobile Air Pollution
by eosrei on Thursday May 07, 2015 @07:43PM
(#9509149)
The ideal air fuel ratio for gasoline engines is 14.64:1. It hasn't changed. Running an engine too rich wastes fuel and reduces power, too lean causes detonation and can destroy it. Electronic fuel injection more precisely meters the fuel which keeps combustion closer to ideal. Carbureted vehicles are generally tuned as close as possible to ideal but it's always better to go slightly rich than slightly lean.