Warm air intake
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
Information required: A listing for different ways to do this if its different on different types of cars
Please enter your user name and any relevant data in the table
|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.||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.