Re: Air filters on race cars??
[Re: Thumperdart]
#1715208
01/05/15 02:04 AM
01/05/15 02:04 AM
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Joined: Feb 2004
Posts: 2,073 Tulsa, Ok
WadeMetzinger
top fuel
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top fuel
Joined: Feb 2004
Posts: 2,073
Tulsa, Ok
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Wade Metzinger 918-809-0987 71 Cuda 9.28@145 -1s, Pglide 68 Cuda 10.64@124 1.45 60's 318->390 eddys Moparts discount code on WIX - moparts www.Filter1.com
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Re: Air filters on race cars??
[Re: BradH]
#1715210
01/05/15 03:02 PM
01/05/15 03:02 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Not sure if running a smaller (more restrictive) filter setup on the street, and switching out to something more of a "bird and rock catcher" screen only at the track, is a viable approach... or if that's simply fooling myself.
1. ... 'cuz I was hoping for a comment or two in response to my last paragraph.
2. Where can flow test results for the Wix racing filters found? All I've noticed is the parts listings on Summit, et al, simply say "flow 1000+ CFM"... but it's the same "spec" regardless of size.
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Re: Air filters on race cars??
[Re: Thumperdart]
#1715215
01/05/15 08:18 PM
01/05/15 08:18 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Quote:
2. Where can flow test results for the Wix racing filters found? All I've noticed is the parts listings on Summit, et al, simply say "flow 1000+ CFM"... but it's the same "spec" regardless of size.
Just came across this thread on another forum: http://forums.tccoa.com/showthread.php?t=15773
Even though it's from 2003, the data is still valid IMO and the preface by the poster on the test methodology is also interesting.
First off, THIS is the reason I joined Moparts and a select few sites because of valuable info like this post is getting not squabbling bs like grade school kids in the sand box..............I agree about the 1000+ cfm in different sizes and would like closer more accurate data than that. Think I`ll call em.............
I think if you call them your gonna get some bogus number.. IF they even know... you would be talking to a salesman... I agree.. I would have figured a larger difference from a 3" to 4"... something just doesnt sound right
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Re: Air filters on race cars??
[Re: AndyF]
#1715217
01/06/15 12:01 AM
01/06/15 12:01 AM
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Joined: Jan 2003
Posts: 3,943 Melbourne.....Oz-land
Moparmal
master
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master
Joined: Jan 2003
Posts: 3,943
Melbourne.....Oz-land
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14x3 = 131.94sq" filtering area 14x4 = 175.92sq" The 14x3 has 3/4. (75%) of the surface area of the 14x4 Unless its made out of a different material, or is thicker...I cant see how the 14x4 only flows 5.4 %. more! 907/860 x 100/1 = 105.4%.
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Re: Air filters on race cars??
[Re: AndyF]
#1715219
01/06/15 12:35 AM
01/06/15 12:35 AM
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Joined: Dec 2003
Posts: 23,295 Here
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 23,295
Here
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What if the measurement/test was thru say 1000cfm carb or something else that gave an upper limit to the flow?
" All sorts of things can happen when you are open to new Ideas" Inventor of Kevlar
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Re: Air filters on race cars??
[Re: jcc]
#1715220
01/06/15 12:44 AM
01/06/15 12:44 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
What if the measurement/test was thru say 1000cfm carb or something else that gave an upper limit to the flow?
If thats the case then a lot of the data might be invalid .. who is to say that choke point didnt hold back flow on some of the 3" stuff
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Re: Air filters on race cars??
[Re: Moparmal]
#1715222
01/06/15 11:49 AM
01/06/15 11:49 AM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
If people want to use the K&N formula - then this s how u calculate the surface area of a round filter.
Its circumference x height - Plug in the diameter into this calculator and itll tell you the circ.
Then x by height -
http://www.csgnetwork.com/circle_sphere_area_calculator.html
David Vizard says you need to adjust the height of the filter to account for the top & bottom molding and edge effects. So, your 3" filter calc really should be more like 2-3/4" (or whatever a particular filter measures) when you're trying to come up w/ effective surface area.
Also, for those who question the data I found and posted from tests performed elsewhere, no problem. But if you feel the need to pi$$ on the results, you should probably dig up your own data or -- even better -- conduct your own tests to (in)validate it.
At least I took the time to try and find something more than just a bunch of opinions on the subject.
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Re: Air filters on race cars??
[Re: Thumperdart]
#1715224
01/06/15 02:24 PM
01/06/15 02:24 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
..."what" you really need to eat a Snickers........"why" because you`re not yourself when you don`t........
I'll have to settle for a blueberry muffin and a large hot chocolate. It's a little snowy here today and the forecast for the rest of the week isn't showing much break in the temp, either.
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