stock filter question again

[rob10858]

what exactly does removing the air horn from the stock filter accomplish? when you look into the intake of fresh air from our trucks, you can see that the design was to force the air into the filter box. the problemn is that there is no seal, and more times than not, the horn either comes disconnected or sucked into the box, thus restricting flow. i took mine out of my 2001 hg output after having been thru the soon to be popular "whop whop whop " noise under high loads. ive noticed no change in egts or performance since i took the horn out, and i know about the alternative intake systems on the market. my question is what is gained by removing the air horn, besides the obvious reduction in noise?

 

[illflem]

packman,I used to know the formula,but... Anyways you can get a large volume of air or fluid though a restriction depending on the length of the restriction. By removing the horn you are removing 99% of the length of the restriction.
You won't notice a change in performance unless you are bombed or pulling loads. Then the first thing you will notice is more vacuum registered on the filter minder. Removing the horn will give you a little less vacuum,but not as must as changing to a freer flowing filter.
The main function of the horn,besides it's way of choking down power so that Dodge can make it though warranty without problems,is to pull cooler air in from outside the engine compartment. It also serves to lessen noise that comes back though the filter from the turbo,by directing it out though the fender. Anything you do to make the air intake freer flowing will result in more "noise",freer flowing = less sound dampening.

 

[Missouri Mule]

packman,
It should help to pull more air or a least I think that is what illflem is saying.
My reason was to get same amount of air or more into filter.
The other reason is try to keep out the water.
I have had water go right up the intake tunnel on a Ford van even though as I remember the intake tunnel had more of a incline to get to air filter. This happened once during a down pour and the spray from semi's was going right up it. Van ran OK until I got off highway. When I got home I looked inside the air filter housing it had dropplets of water inside and the fiter was damp. I took off the elbo to the filter housing and the intake tunnel. Still had fresh air coming in but not directly. Never had the problem again.

 

[rob10858]

thanks for your reply gents. ive noticed exactly what you have said in regards to noise and sounds after pulling out the airhorn, i like it. we're bombed to about 300 hp with kn filters, so im trying to keep everything cool without drastic intake changes. ive got a question that might not be answered because of the date of this post but here goes. why not put some kind of wedge between the opening of the airbox and the "tunnel" that leads to it to direct the airbox? it seems to me that alot of good clean air is blowing right by where its supposed to go.

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[illflem]

packman,I've thought of that before,what you could use is a rubber adhesive canopy(topper) seal,one on the fender and another on the airbox,that should come close to closing the gap.
If you want to lower your EGTs 100°-150° for cheap try this.