s13sr20chris..intercooler theory...

[bangstanger]

is there a point at where the air temp is no longer really a factor in turbo charged applications. I.E. if there were a way to cool the air greatly below ambient air temps would there be a point where that would stop giving you gains...and if so / or not...is there an optimum temp you would want the incoming air to be at...For now assume this is a stock standard turbo 240 for any neccesary factors.

I ask because I am working on a silly idea and would like to know if its worth pursuing to fabrication...since I dont have any of the parts yet..lol..

thanks for any info ya got..

Carl

Actually I guess... to make it matter you would have to assume increased boost pressures....as all I have seen on stock would cancel any real gains...so with or without specific numbers for boost and turbo outlet temps do you think you can figure this out?

[AmoebAssassin]

Based on my limited AP Chem backround in high school, i can tell you that air will continue to increase in density as temperature falls, to a point well beyond what i'm assuming you would reach. I'm talking at temperatures closer to absolute zero where molecular motion becomes so slight that molecular size and geometry start to dictate how dense air will become. However, the air will liquify before you reach this point. So realistically in your application, the colder you get air, the denser it will get. Assuming you have the fuel compensation and internals to deal with the torque you'll be generating, the more power you will generate the colder you get the air in your post-turbo intake tract.

[kyle1911]

If the air is to cool than your MAFS and temp sensor wont be able to adjust to allow for more fuel. You will have excess o2 where it would cause a lean situation. This is in extreme cases though like below 0° C.

Also the cold air would be a huge shock to the hot cyl head and walls would could create rapid expasion and contraction would could lead to cracks in extreme cases.

[float_6969]

You also need to take into consideration the effects of extreamly cool air on the fuel. It could potentally cause problems with atomoization.

[sanioll]

0 kelvin

-273 celcius

everything almost halts