Quote:
Originally Posted by drmiller100
I'm a bit puzzled why you would want hot air in the intake.
The adiabatic expansion implies the colder the air you can use, the more delta T you get.
The greater the delta T, the more effiicent the 4 stroke engine?
I guess I'm curious why you would want a hot air intake.
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Warm air is less dense and has less oxygen molecules therefore less oxygen in the exhaust stream for the 02 sensor to detect and the IAT sensor sends a warmer temperature reading to the ECU, which fools the ECU into thinking the outdoor temperature is hotter than it actually is and leans out the mixture. All cars run richer when cold air is being introduced into the engine. Many have found that warmer IAT's increase their mileage.