Air temp
#1
Air temp
I am wondering how much effect does air temp has on our 2.0 N/A engine. I can't help noticing that my P5 runs smoother and has better throttle respond in a cool morning. I guess that's why we want those ram air intakes... Or am I hallucinating...?
#2
Re: Air temp
Originally posted by CoreDump
I am wondering how much effect does air temp has on our 2.0 N/A engine. I can't help noticing that my P5 runs smoother and has better throttle respond in a cool morning. I guess that's why we want those ram air intakes... Or am I hallucinating...?
I am wondering how much effect does air temp has on our 2.0 N/A engine. I can't help noticing that my P5 runs smoother and has better throttle respond in a cool morning. I guess that's why we want those ram air intakes... Or am I hallucinating...?
#3
I would rephrase that to:
Colder air has a higher density. Thus there are more molecules of oxygen in a cubic foot of cold air than there are in a cubic foot of hot air. So, there are more molecules of oxygen available to combust with the hydrocarbons you inject in to the cylinder, thus creating a more efficient combustion reaction.
Also cold air reaches a higher pressure than warm air in your cylinder. Say every cubic foot of air is compressed 7:1. That cubic foot of air will become 1/7 a cubic foot of air inside the cylinder. The more molecules there are bouncing around on the edges, thus creating pressure, the higher the pressure will be. Kind of a cheap turbocharger although the pressures never reach anywhere near the level a forced induction system can provide.
I could keep going but I'll stop here.
Colder air has a higher density. Thus there are more molecules of oxygen in a cubic foot of cold air than there are in a cubic foot of hot air. So, there are more molecules of oxygen available to combust with the hydrocarbons you inject in to the cylinder, thus creating a more efficient combustion reaction.
Also cold air reaches a higher pressure than warm air in your cylinder. Say every cubic foot of air is compressed 7:1. That cubic foot of air will become 1/7 a cubic foot of air inside the cylinder. The more molecules there are bouncing around on the edges, thus creating pressure, the higher the pressure will be. Kind of a cheap turbocharger although the pressures never reach anywhere near the level a forced induction system can provide.
I could keep going but I'll stop here.
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