LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old Apr 3, 2009 | 10:07 AM
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Has anyone ever "cut a hole" or "created" something to help the actual filter of the K&N cold air to breath or suck in air better? I was cleaning my filter out last night in my Z28 and that thing is crammed way down there. In that square area where the filter is it's really restricted for taking in air and I was thinking of taking roughly a 2inch hole saw and cutting a hole in the bottom plastic piece because there's nothing underneath it but open air. I figure this could help take in outside air better and possibly help the induction aspect. Anyone?
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Old Apr 3, 2009 | 10:12 AM
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Watch out for puddles... But you can cut a hole then get some sheetmetal and forum a mold around the hold to "catch" the air and devert it up to the filter and hold it in with screws
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Old Apr 3, 2009 | 10:16 AM
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Yeah I thought of the water situation but being I have another vehicle for my daily driving it really doesn't see much rain. That sheet metal idea is a good one and sounds easy enough. I would think even a small hole drilled out would create some sort of better air flow what ya think?
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Old Apr 3, 2009 | 10:19 AM
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I did see a write up of it somewhere..Ahhh here you go
http://www.lt1engine.com/tech/f-body-lt1-free-ram-air/
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Old Apr 3, 2009 | 10:24 AM
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Originally Posted by dkishton1486
I did see a write up of it somewhere..Ahhh here you go
http://www.lt1engine.com/tech/f-body-lt1-free-ram-air/
Haa very nice! Good find man thanks! Curious to know if anyone on here has tried this!??
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Old Apr 3, 2009 | 10:40 AM
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Originally Posted by dkishton1486
I did see a write up of it somewhere..Ahhh here you go
http://www.lt1engine.com/tech/f-body-lt1-free-ram-air/
Ahh yes, I found this article a while back myself and always thought about doing this mod!
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Old Apr 3, 2009 | 11:36 AM
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I did this years ago. Cooler air = better.
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Old Apr 3, 2009 | 11:41 AM
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Originally Posted by 94Z28rag
I did this years ago. Cooler air = better.
Lets see some pics!
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Old Apr 3, 2009 | 01:35 PM
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Originally Posted by GreatV8
Haa very nice! Good find man thanks! Curious to know if anyone on here has tried this!??
I actually did that before I did my Lid Conversion. I made a big *** Duct though..mine looked like a Shovel under there..lol
It worked really well.

I also cut the face completely off of the Filter too, exposing all of the Filter to incoming air.
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Old Apr 3, 2009 | 01:40 PM
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Anyone know the part number for the replacement K&N filter for the CAI? I messed mine up..
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Old Apr 3, 2009 | 01:48 PM
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Originally Posted by GreatV8
Anyone know the part number for the replacement K&N filter for the CAI? I messed mine up..
Depends on the size you want. Their website has a catalog FULL of them that you can order Might as well go a bit bigger, right?
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Old Apr 3, 2009 | 01:53 PM
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Originally Posted by Formula350
Depends on the size you want. Their website has a catalog FULL of them that you can order Might as well go a bit bigger, right?
Probably just the one that comes with it...maybe the size step up.
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Old Apr 3, 2009 | 02:02 PM
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Just remove the plastic crap from under your car and it'll have the same effect.
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Old Apr 3, 2009 | 02:34 PM
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Originally Posted by I8ASaleen
Just remove the plastic crap from under your car and it'll have the same effect.
Pshaw! Just take the whole bumper cover off



Joking of course!
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Old Apr 3, 2009 | 03:19 PM
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I like this idea. looks like ill be doing some cutting this weekend
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Old Apr 3, 2009 | 03:31 PM
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From: Oregon Grown
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I just got done doing a little modifying to mine. Until I can make up a actual piece to mount I took the biggest drill head I could find in the garage and drilled about 15 holes spread out around the bottom plastic piece. Almost did a wheelie after I tested it out
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