Anyone have the dimensions of the panel K&N and the cone S&B found in a kit like JLP or PSP?

 

I want to know this also. How many sq. inches of filter area on the aftermarket filters?

Jerry

 

Your never starving for air with a MAF.....it tells the ECU how much MASS of air per unit of time is entering the plenum.....if its rich on the dyno the engine has toooo much air, les consumed air in the cylinders (blowby) that passed through the MAF.......but I have not heard of this happening on the 5.4L...maybe someone else has.

our supercharger will draw more air through the MAF if the cross-sectional area is greater which increases velocity....you are limited to the cross-sectional area....at what point you limit power is the question....Put the 15" cone on and take that question out of the equation.

from the plenum entering the engine what happens to that MASS of air or (lb/min.) is a product of temp. , pressure , volumetric efficiency, density
etc etc blah blah...




Gator ? you going to plug some numbers into that equation

you can plug some figures into a formula but...
what happens to those numbers when the whole system heat soaks in a traffic jam. Then you smoke tires though the gears, to a hundred or so, ........

 

I'm guessing that the figures K & N gave me were based on a standard temp. That's how they do all airplane performance numbers so that you get an apples to apples comparison.


Jerry

 

I have an airkit on the way as of today. Will do some testing, particularly at the track when I am able to. Will definitely post my results regardless of the outcome.

 

I thought you already did testing.. Which air kit did you get? See ya at the track....

 

I did do the testing when I had my old truck. But I wasn't running near the boost on that one that I am now. I will retest to help out the high boost and the Apten gang...

 

OKE DOKE....glad to see your a member of the high boost club.. See ya

 

Preliminary data:

Airkit installed today. Lost 1-1.5# of boost with open airkit over stock box w/ 10- 2.5" holes in bottom.

Track will be the real story as power is not necessary proportional to boost. I could not feel a SOTP diff between the 2. Will take both setups to the track in March

 

Ok....here is a question. Has anyone ever flow tested the conical filter set-up? Lots of vendors here selling them, but do any of they have flow numbers???

I also STILL believe that the correct flow (smoothness, etc) is very important. More isn't always better if the turbulence and heat disrupt this "correct" flow. It's still quality and not necessarily quantity I believe...

Vendors???

 

fractaldragon,
Area = (CID * RPM) / 20839
Area = (Height - .75) * (Diameter * 3.141593)
Area = Length * Width
Height = (Area / (Diameter * 3.141593)) + .75
Diameter = (Area / (Height - 0.75)) / 3.141593
CID = (20839 * Area) / R
RPM = (20839 * Area) / CID
Width = Area / Length
Length = Area / Width


Paper Flows 57.3% of K&N
Foam Flows 42.4% of K&N
This is just dimensional data off the K&N website.

heat not a factor in the filter comparison.


quantitySurface area...quantity is the reason its shaped like a cone.

flow test a filter is not required in reference to turbulance, air flow dynamics were performed to the intake system by Ford and they designed turbulance into the intake after the filter in front of the MAF. turbulance from our "ribbed" rubber intake can cause a pretty large pressure drop equivilant to reducing the diameter by almost 50%. My C5 had the same ribbed boot... .....
Supposedly the air needs to be mixed prior to reading, sensing o2 & accuracy through the MAF.. also my C5 had a screen in place at the MAF which was to even out the airflow across the diameter of the intake tube rather than letting it get more laminar with a high flow in the center and less near the walls. With that said, I removed the screen and installed a smooth duct(power duct ) in place of the ribbed one and dyno #'s went up.....engineering theory went away

air smoothness is very important concerning intake systems up to and including runners and heads
hence porting......but of course after the filter.

Did your Airkit include a smooth intake tube between the filter and MAF. . If it did not I would get one, I bet it will help with the ported blower as I stated.

 

Again we are looking at whether the filter can filter enough. I can't go introducing a new variable like a smooth intake tube. I guess I could, but that would mean spending more $$$. And if those results didn't turn out, then somebody would say it was the stock T/B being limiting next and so on....

I could care less what K&N states. It's what truely performs better...that is the real question. I am in the process of getting slicks, so my 60ft's should be very consistent. I'll be able to get a pretty good comparison between airboxs

 

just picked up a KN today.........if you read the back of the box it tells you how much it flows. shouldnt be that much of a surprise when its stated on the box.

 

JimJr,

there goes that traction!

 

What the hell is traction? I can light them up from a 40 mph roll now