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Old 07-19-2012, 10:27 PM   #1
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cool air intake question

I have a cool air intake on my jeep and it came with it. What's the deal with it? What are they designed to do? More power?

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Old 07-20-2012, 09:38 AM   #2
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A cold air intake is an aftermarket assembly of parts used to bring relatively cool air into a car's internal-combustion engine.
The principle behind a cold air intake is that cooler air has a higher density, thus containing more oxygen per volume unit than warmer air.



Some strategies used in designing aftermarket cold air intakes are:
  • Reworking parts of the intake that create turbulence to reduce air resistance.
  • Providing a more direct route to the air intake by eliminating muffling devices.
  • Shortening the length of the intake.
  • Placing the intake duct so as to use the ram-air effect to give positive pressure at speed.
At least those are the idea's. EVERYBODY has their opinion regarding real world benefits.

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Old 07-20-2012, 11:01 AM   #3
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Thanks that helps a lot!
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Old 07-20-2012, 12:12 PM   #4
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One downfall of cold air intakes is the filter is exposed to water. Not usually a big deal for most people but just keep that in mind
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Old 07-20-2012, 02:38 PM   #5
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Quote:
Originally Posted by Nemesis530
One downfall of cold air intakes is the filter is exposed to water. Not usually a big deal for most people but just keep that in mind
I have heard thatfelling before. Ill ne sure to keep it in mind. Thanks a lot guys
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Old 07-21-2012, 12:55 AM   #6
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I have two yj's a 92 2.5l stock engine and 95 2.5l modded some with a coa and let me tell you it makes a big diff. I know some people here hate them and dont think they work but in my case im glad it has one and ive never had problems with water and i do go in big puddles too
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Old 07-22-2012, 08:23 AM   #7
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Quote:
Originally Posted by Shrimp View Post
I have two yj's a 92 2.5l stock engine and 95 2.5l modded some with a coa and let me tell you it makes a big diff. I know some people here hate them and dont think they work but in my case im glad it has one and ive never had problems with water and i do go in big puddles too
What brand is your CAI ?. I ordered one from AFE, but it was for a TJ setup, completly different. Turns out they don't make one for the YJ 2.5L. K&N or Airaid only options?
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Old 07-22-2012, 11:51 PM   #8
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Quote:
Originally Posted by YJ325i

What brand is your CAI ?. I ordered one from AFE, but it was for a TJ setup, completly different. Turns out they don't make one for the YJ 2.5L. K&N or Airaid only options?
Well mine was on when i bought the jeep. Its a brute force CAI and its like $250ish new i believe.

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