EFI Filter Air Flow Calc?

[aldersonjames20]

I am still trying to come up with a better looking way to filter my IR setup. I have gone through all the normal ways of doing it and they all fail to work on my setup as there are some quirks with mine. My stacks are canted towards each other at an angle of 12 degrees on each side. This was because the designer opted to mill the intakes down so his injectors pushed fuel almost directly into each intake. He also custom spun the velocity stacks to fit the 56mm throttle bodies so they are wider than any I have seen, especially at the top where they are 4 inches OD. This stops me from using any of the options most would go with such as the screens or the rousch individual snap on K&N's.

So, I have come to the conclusion that I am going to have to have some kind of filtration fabricated for me. My last idea was to take one of the cobra oval air cleaner units and have the base modified to fit the stacks. This seems doable (very tight fit) but I am being told the 1.5 inch filter won't cut it for the amount of air I need. I can't go to a longer filter as I don't have the hood clearance. So.. I think I am just going to plug each velocity stack with a K&N conical air filter and have them sit on the top of each stack. I am hoping I can get an extended flange version so it will litterally fit in there fairly snuggly and won't come out, otherwise I am going to have to come up with some other way of clamping them on each stack.

Ok, after all that explaination that you probably didn't need (just me venting), I need to know if there is a calculation that would tell me what airflow I need to get through any filter I choose. I am looking to calculate this for each stack so I can find both a filter that fits and breathes well enough to put on and not kill horsepower. Its probably an easy thing to do, but I would think it would depend on cam and heads etc correct? Anyway, please let me know if there is one I can plug my engine specs into.



Thanks.

James