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Re: Why does a lean engine run hot?
Good point! Consider a four-cycle four-cylinder engine doing a modest 3000 rpm. One intake occurs in 0.5 revolution. There is no more than 10 milliseconds to fill the cylinder, including valve opening and and closing. Nothing is running at equilibrium. With only 14.7 psi pushing the intake it is amazing anything gets in there at all.
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Uncle Al
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