air
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Junior User
Joined: Nov 2007
Posts: 69
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From: Bonne Terre,Mo 63628
air
Hey everybody, love this FE web!!. I am excited now!. I have a fresh 390 RV cam, dual exhaust. So i just received my new edelbrock rpm intake, a street avenger 670 cfm carb, and some hooker headers. All new!! WOW i can't weight to get it on to see how much difference it will make. I am looking at a new air cleaner ***. from k&n, it's the one that has a filter for a top and sides, can't remember what it is called, but its about $150.00 for the whole assembly. What do you experienced FE builders think about this kind of set up verses the standard air filter assembly??. I mean as far as more h.p. or whatever?. Ah the 390 is in a f250 pickup if that matters. Thank you for you inputs.
Posting Guru
Joined: Nov 2005
Posts: 1,302
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From: Madison, SD
Unless you plan on running at WOT and in excess of 6500, I doubt the $150 air cleaner will make a bit more power then the $29.95 standard aftermarket chrome one. Probably some increase in power, but I'm sure you'd have to have it on a dyno to see it.....
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
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From: Smith Mountain Lake, VA
Well I disagree with dave......more cam, Intake, Headers, Open filter..More air in more air out..More HP out..That simple.....Engines are nothing more than an air pump! The more the breath the better off they are!!!
RJ
RJ
Elder User
Joined: Mar 2004
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From: Klamath Falls OR
Originally Posted by baddad457
Skip the K&N filter top. It'll add nothing. Just use a K&N filter in the air cleaner of your choice.
Elder User
Joined: Mar 2004
Posts: 747
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From: Klamath Falls OR
You can buy a Horn from K&N that goes over the choke. That will gain you some HP because it straightens out the air. Those do work!!!
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Senior User
Joined: Jan 2002
Posts: 453
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From: australia
air cleaner
hi all i still use my old oil bath air filter , i rebuild my 360 had a paper filter on it but it keep clogging with mud spray so i went to the back of the shed and look for the old oil bath filter and thats where it stayed works great
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Senior User
Joined: Dec 2005
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From: North Carolina
Originally Posted by Ford428CJ
You can buy a Horn from K&N that goes over the choke. That will gain you some HP because it straightens out the air. Those do work!!!
EDIT::: Are you talking about Stubstacks??? It says "Requires milled off air horn." What does that mean??
Last edited by pbear6969; Dec 17, 2007 at 09:51 AM.
FE "Freakin Expensive"
Joined: Dec 2003
Posts: 6,461
Likes: 4
From: Smith Mountain Lake, VA
Pbear......Just buy a ram air box for it.....and run some duct work and get fresh cooler air into the carb...and then buy the K&N round air filter for it.. That way if you plan on a bigger build at a later date? you have your fresh air system allready taken care of... It all depends on where you want to end up....
I did run a few vehicles with the open top cleaner....But I also had a scoop on the hood....and they worked great.... But with that said not as good with the fresh air ram box.... JMO.. its your money...and sometimes I GO over kill...but It allways ends up being one less piece to buy....LOL...
RJ
I did run a few vehicles with the open top cleaner....But I also had a scoop on the hood....and they worked great.... But with that said not as good with the fresh air ram box.... JMO.. its your money...and sometimes I GO over kill...but It allways ends up being one less piece to buy....LOL...
RJ
Senior User
Joined: Dec 2005
Posts: 314
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From: North Carolina
Originally Posted by RapidRuss
Pbear......Just buy a ram air box for it.....and run some duct work and get fresh cooler air into the carb...and then buy the K&N round air filter for it..
RJ
RJ
Elder User
Joined: Mar 2004
Posts: 747
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From: Klamath Falls OR
Originally Posted by pbear6969
??? Horn from K&N?? What is that Ford428CJ? I have never heard of or seen one of those... Where can you get that from??
EDIT::: Are you talking about Stubstacks??? It says "Requires milled off air horn." What does that mean??
EDIT::: Are you talking about Stubstacks??? It says "Requires milled off air horn." What does that mean??
http://www.knfilters.com/Racing/stubstacks.htm
I wouldn't wast my money on a top. The only time that I would, is for hood clearance. When you have to run smaller filter (like 3" tall or less) or a shaker set-up, other wise no gain from it. Sorry Russ, don't take it to hart. Put your money where you are going to make some gains. I think Car Crafter did an article on air filters (on tall and short filters) and you would be surprised on what you don't need to make power. But each to there own & Its your money to do with what you want.......JMHO
Needsmorecoffee.
Joined: Oct 2004
Posts: 3,624
Likes: 2
From: CT
BTW guys Russ has a really cool design for a airbox. I don't think it has the RJS patent yet but it's a good concept idea.
I really like KN filters and have used them often. I've never tried the top filter tho. And that stubstack looks wicked cool!! That's another must have for me x 2.
I really like KN filters and have used them often. I've never tried the top filter tho. And that stubstack looks wicked cool!! That's another must have for me x 2.
Senior User
Joined: Dec 2005
Posts: 314
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From: North Carolina
OK here is what I don't understand... What are they talking about here..>>> "This stubstack is designed to be used with Holley 390-850cfm square bore carbs (4150/4160), <b>that have had the choke horn milled off and still use an air cleaner. </b>Eliminates the need for hand polishing and radius work. Will work with all K&N Custom Chrome Racing Air Cleaners, including Tall Velocity Stack Air Cleaners."
Lead Driver
Joined: Jan 2003
Posts: 9,893
Likes: 12
From: Ohio
There is plenty of room, run two 3" tall filter elements(or 4" for that matter). No sense in spending that kind of money for air filter.
I've run K&N filters, but if you just get the cheaper tall element and only drive it occasionally don't worry about it.
I've run K&N filters, but if you just get the cheaper tall element and only drive it occasionally don't worry about it.