Anjolle kirjutas:
Kütusekulule pole sissevõtuõhu temperatuuril mingit mõju.
Paraku ei saa ma sellega nõustuda.
"Warmer air is less dense, and thus contains less oxygen to burn fuel in. The car's ECU compensates by opening the throttle wider to admit more air. This, in turn, decreases the resistance the engine must overcome to suck air in. The net effect is for the engine to intake the same amount of oxygen (and thus burn the same amount of fuel, producing the same power) but with less friction losses, allowing for a gain in fuel economy, at the expense of top-end power."
Isiklik kogemus räägib sellele kaasa, 1,5-2 liitrit sajale tekib vahe.
Et mitte ainult oma arvamusest kinni olla - Porsche 914 CAI ja WAI kasutades :
http://www.osintakes.com/
Lisaks head lugemist -
http://www.gassavers.org/showthread.php?t=244
Lisan siia üksiku postituse eeltoodud lingist (juhuks kui keegi ei viitsi kõike lugeda) -
Cold vs warm air intakes
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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.