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| Re: Car Running Too Cold? |
Subject: Re: Car Running Too Cold?
by old-tin on 2011/5/23 13:06:52
Quote:
lamb_daiquiri wrote:
Ultimately cold air is more dense and more will go in. The trade off is cold fuel hitting a cold port wall will coagulate and pool. Air and fuel need to be mixed to burn. High RPM and high flow velocities will pick it up again as fast air is lower pressure and helps revapourise the fuel as the partial pressure it experiences is lower and the turbulence will help pick it up from the wall.
Carbs with cold walled manifolds also have poor transient response. A good thing to read to understand this is reading about X-tau acceleration enritchment on the megasquirt website.
that statment is perfectly valid but in real terms what efect would it have on an engine at any level of performance? next to 0 i think. and do you mean ports or runners? because about 1min arfter start up your intake ports would be fairly worm and aslong as your not doing 6k everywhere in a cold climate the runners would get plenty hot enough just from engine bay temp. it is realy nither hear nor thair.
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