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Air Pump Reversed?

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Old Nov 11, 2009 | 03:43 PM
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Default Air Pump Reversed?

This may seem useless but has anyone tried reversing the air pump to blow

into the intake instead of sucking air out? I thought about just reversing it

and rather than just have it blow at idle when cold, wiring it to a switch that

a can flip on and off like while at WOT. Anyone ever try anything like this?

just wondering , thanks for any input
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Old Nov 11, 2009 | 04:01 PM
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This sounds silly to me. The baby breath that AIR pump produces won't do a thing.

Besides, the pump doesn't suck on the intake, it blows on the exhaust.
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Old Nov 11, 2009 | 04:22 PM
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you'd then be left with what is essentially a 2nd EGR system haha
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Old Nov 11, 2009 | 04:39 PM
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could it be turned into a vacuum pump to depressurize the crankcase?
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Old Nov 11, 2009 | 04:44 PM
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Alright first off i forgot to mention this is on a car with the air and egr removed from the exhaust so u would have more fresh air being pumped into the intake rather than it

being sucked out, because yes the air does get pumped into the exhaust but if the air being pumped out was to be reversed and the exhaust ports blocked ud be allowing more

fresh cold air to be pumped into the intake

Last edited by Yuik87; Nov 11, 2009 at 04:56 PM.
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Old Nov 11, 2009 | 06:14 PM
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Those air pumps flow <1 CFM, they will do nothing for you except create a source of unmetered air. You are sucking up more power turning the pulley then you could ever expect to gain out of this.
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Old Nov 11, 2009 | 07:08 PM
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Has anyone even seen or felt how hard these blow and the air comin out of it

is actually the ambient air temp rather than the hot air under the hood. also

there is no way that its going to hurt as far as unmetered air its before the

MAF not after another thing is tha tif you are going to try to say that the air

pump is drawing enough power to be a huge load on the engine then i guess

u loose horsepower by listening to your radio too
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Old Nov 11, 2009 | 07:21 PM
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the best idea would be to put it on a switch and use in for a vacuum pump for the cranck case you'd see more out of that than the little air you stuff into the engine plus it would have to be pre m.a.f. sensor now if it was a small 4 banger it might be a tenth or 2
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Old Nov 11, 2009 | 07:38 PM
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This sounds like those electric superchargers you can buy on Ebay. "100 extra horsepower"
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Old Nov 11, 2009 | 07:46 PM
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I hooked up a hoover vac that sucks the exhaust out of my headers. I gained probably around 7rwhp on the dyno.
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Old Nov 11, 2009 | 08:11 PM
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what was her name
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Old Nov 11, 2009 | 08:41 PM
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Originally Posted by ssdeuce74
what was her name
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Old Nov 11, 2009 | 11:02 PM
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so basically im not expecting huge gains or anything but if im not mistaking

the more cold/dense air you can supply the better off you are for power and

effiency now im not expecting or trying to convince anyone its a substitute

for forced induction, just another method of supplying the car with cold air.

the way i figure it is the gains i get by removing that would be equivalent to

removing my stock radio,from a wieght and electrical load aspect, but by

leaving it i have found yet another way to make the car that much more

efficient without losing much i mean the way i see it, its a free mod
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Old Nov 11, 2009 | 11:08 PM
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Originally Posted by Yuik87
Has anyone even seen or felt how hard these blow and the air comin out of it

is actually the ambient air temp rather than the hot air under the hood. also

there is no way that its going to hurt as far as unmetered air its before the

MAF not after another thing is tha tif you are going to try to say that the air

pump is drawing enough power to be a huge load on the engine then i guess

u loose horsepower by listening to your radio too
Stop it.
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Old Nov 11, 2009 | 11:18 PM
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It's not gonna help anything to blow that small amount of air into the open air box. Even if it did flow enough to make a difference it would just blow the air out the opening of the lid. You would have much better results from a ram air setup and the reduced weight of removing the pump completely.
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Old Nov 11, 2009 | 11:32 PM
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Originally Posted by CranMaro99
Stop it.
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Old Nov 12, 2009 | 12:12 AM
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The concept is there. You're shooting for a mini supercharger. Why not just go with some ram air set up. They're actually half decent.
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Old Nov 12, 2009 | 12:24 AM
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This thread is a joke right? One, it will do nothing. Two, your car is already getting cold air from underneath it. Do the free ram air mod to open up the cavity some more.
http://www.installuniversity.com/ins...am_air_mod.htm
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Old Nov 12, 2009 | 07:43 PM
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Let's put this into perspective.

An internal combustion engine is basically an air pump. What effect could a shitty little electric air pump have on a 346 cubic inch engine that's sucking air at 6000 RPM?
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Old Nov 12, 2009 | 08:26 PM
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lets see if we have an engine trying to suck in as much air as it can at 6000 RPM giving it access to a lil more air no matter how little u may think it is. it can only help and for the "weight savings" they are minimal
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