Air Intake

TyranT · Post by **TyranT** » Thu Mar 08, 2007 2:32 am

The intake pipe has got a fan at the entrance just after the air filter that seems to be sucking in air. The fan operates using the suction that comes from the throttle. When the throttle is open the fan turns. The intake pipe is completely sealed from the opening and at the throttle opening. The only way for the air to go back to the atmosphere is through the fan itself. When the air is trying to go back out side when there is no more space in the pipe, the fan decreases its turning speed.

Should there be a small vent so the air can go out without affecting the fan's function?

Does this fan help the engine in any way, as in gives a small increase to the power produced by the engine?

Any help or opinion is appreciated

Need2Speed · Post by **Need2Speed** » Thu Mar 08, 2007 4:19 pm

i don't think this fan will increase power in any way. the vacuum that the engine creates is enough to pull sufficient air in, if anything the fan will impede flow of air into the engine.

TyranT · Post by **TyranT** » Fri Mar 09, 2007 8:24 pm

Thanks for the tip
I have seen this done in some cars
What about if it was vented, as in a small gap to let air escape when there is no more space for the intake pipe/tube?

Need2Speed · Post by **Need2Speed** » Sun Mar 11, 2007 1:09 am

your talkin bout a blow off valve/waste gate in a turbo or supercharged car so that excess pressure can escape when the throttle is shut.

in these cases the turbo or supercharger is producing positive air pressure therefore the air needs somewhere to go when the throttle is shut. i doubt that your "fan" makes enough positive pressure to need this kind of "vent".

TyranT · Post by **TyranT** » Mon Mar 12, 2007 4:29 am

interesting opinion
thanks again

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