WTF WAI????????
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Record Breaker
Joined: Apr 2007
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From: Sand Springs Oklahoma
WTF WAI????????
ive always heard that the cold air is way better for economy but this guy at
http://www.gassavers.org/showthread.php?t=244
says the WAI is better for Fuel Economy
[/align][/align]so what is going on is CAI better ???[/align]
[/align]
http://www.gassavers.org/showthread.php?t=244
says the WAI is better for Fuel Economy
Cold air intakes will produce more power, and will save gas if the engine operates only at Wide Open Throttle.
However, under 90% of driving, Warm Air Intakes are more efficient because the engine is throttled and under less than full load. WAI does two things:
1) Fuel evaporates more quickly, increasing combustion speed. Fast burn engines improves the amount of pressure generated and expansion work available for a given amount of fuel.
2) With oxygen sensors, engines run at stoichiometric air/fuel ratios. For any given amount of fuel, a corresponding mass of oxygen is admitted. WAI lowers the density of air, meaning that a higher volume of air must be let into the engine for a given fuel input. So with WAI, the throttle must be opened further for a given output, and this lowers the "pumping" work of pulling air past the throttle.
WAI is better than CAI for fuel efficiency imho.[/align]
However, under 90% of driving, Warm Air Intakes are more efficient because the engine is throttled and under less than full load. WAI does two things:
1) Fuel evaporates more quickly, increasing combustion speed. Fast burn engines improves the amount of pressure generated and expansion work available for a given amount of fuel.
2) With oxygen sensors, engines run at stoichiometric air/fuel ratios. For any given amount of fuel, a corresponding mass of oxygen is admitted. WAI lowers the density of air, meaning that a higher volume of air must be let into the engine for a given fuel input. So with WAI, the throttle must be opened further for a given output, and this lowers the "pumping" work of pulling air past the throttle.
WAI is better than CAI for fuel efficiency imho.[/align]
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Thread Starter
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Record Breaker
Joined: Apr 2007
Posts: 1,619
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From: Sand Springs Oklahoma
RE: WTF WAI????????
kk if you say so 
but ive always herd like on all the performance show on spike that the CIA get you better fuel economy
well i really dont cair cuz im going to make the 3.0 soon and have A Real CIA cuz right now i Pretty Much Have A WAI it being behind the engine and all
but ive always herd like on all the performance show on spike that the CIA get you better fuel economy well i really dont cair cuz im going to make the 3.0 soon and have A Real CIA cuz right now i Pretty Much Have A WAI it being behind the engine and all