View source for Warm air intake

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[[Image:HotAirIntake.jpg|right|thumb|400px|Frame|]]
'''Introduction'''<br>
Higher intake charge temperature has been found to increase the flame speed, the combustion reaction rate, the uniformity of the fuel-air mixture and reduce the heat transfer rate though the cylinder walls. This all adds up to the engine using more heat for physical movement and less being wasted.

The downside to this is that hotter air also tends to retard ignition timing and cause engine pinging. Different engines will react differently to warm air intakes and testing will need to be done to see if it will work for your specific vehicle. Saturns are known to react well to warm air intakes. 

== Instructions for mod ==
''Information required:'' How do people perform this modification, pictures, problems, what to look out for<br>
''Information required:'' A listing for different ways to do this if its different on different types of cars<br>

== User experiences  ==
Please enter your user name and any relevant data in the table<br>
{| cellspacing="0" Border=1
|+ User data
! User Name !! Car Make, Model, Year !! Cost of Mod !! Time to Perform Mod !! MPG Before Mod !! MPG After Mod !! MPG improvement guess !! Instruction Link
|-
| Echo-Francis || Toyota Echo 2005 || $0 || 2 Mins ||  ||  ||Not tested. I only removed a hose so my ICE take warmer air instead of exterior fresh air. || [http://ecomodder.com/forum/showthread.php/echo-troll-modding-thread-2005-toyota-echo-19053.html Echo-Francis WAI]
|}

== Problems / Consequences of mod ==

If your engine temp is too high because of the WAI or the HAI, this could damage it.

Not recomended for diesels unless operated in very cold weather.

== References ==
=== Forum thread links ===
[http://ecomodder.com/forum/showthread.php/hot-air-intakes-7602.html Hot Air Intakes.. ]

http://ecomodder.com/forum/showthread.php/what-best-intake-temp-hot-cold-22064.html

[http://ecomodder.com/forum/showthread.php/diesel-air-intake-warm-not-21502.html Diesel air intake warm or not]

=== External links ===