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Re: Air filters on race cars?? [Re: Thumperdart] #1715165
12/31/14 04:29 AM
12/31/14 04:29 AM
Joined: Jan 2003
Posts: 3,943
Melbourne.....Oz-land
Moparmal Offline
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What cubes and peak rpm do you run?

Re: Air filters on race cars?? [Re: Moparmal] #1715166
12/31/14 09:37 AM
12/31/14 09:37 AM
Joined: Mar 2009
Posts: 2,467
Sydney,Australia
tex013 Offline
top fuel
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Mal , good to see you still plugging away
FWIW i have dynoed my 440 and have found less than 5 rwhp difference aircleaner to no air cleaner ., but i have seen 20/25 rwhp gain with my air box . With a six pack scoop i would never run filter free , see a few motors eat something they shouldnt on drag strips .
I run a 14x3 k&n with filter top , with drop base attached to the air box which is heat resistant fibreglass sheet . Maybe a taller filter may help
Nearly time for a new season to start

Tex


New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
Re: Air filters on race cars?? [Re: Moparmal] #1715167
12/31/14 01:26 PM
12/31/14 01:26 PM
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Posts: 19,318
State of confusion
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Thumperdart Offline
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Quote:

What cubes and peak rpm do you run?





470 BB 7500 max.............


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Air filters on race cars?? [Re: Moparmal] #1715168
12/31/14 02:28 PM
12/31/14 02:28 PM
Joined: Dec 2003
Posts: 22,696
Bitopia
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jcc Offline
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Quote:

My RW dyno results with a single carb on the
Modman

Carb was a 800cfm AVS THUNDER

KN 14x3 with Xtreme lid - 318 RWHP

MOROSO 16x3 - same day - 333 RWHP

No air cleaner - 277 RWHP

KN Hemi dual quad 2" high - twin AFB 500s - 358 RWHP

Two lessons Ive learned over time...

1 - Carters hate being run without an air bell or cleaner.

2 - Xtreme lids rob HP compared to a decent size normal filter element. Joe Sherman has made similar findings on Speed Torque.




Your conclusion maybe correct, or there just might a significant difference in the restriction of a K&N vs a Moroso element besides basic area, or the amount of oiling, etc.

I believe most agree on the basic facts, its the conclusions from those facts where we differ.


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Air filters on race cars?? [Re: Thumperdart] #1715169
12/31/14 03:20 PM
12/31/14 03:20 PM
Joined: Mar 2006
Posts: 2,675
Mt. Eden Ky.
Hemi Allstate Offline
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Good info thankxxx.............So my 14x3 has been killin me from day one and the K&N site sez the 14x3 flows under 700 cfm and the Wix racing 4" flows 1000+ so that`s my next purchace. My s$%^z gonna fly next time out..........

This is good info. I had to switch to a 3" K&N from a 4" (both 14" dia. with K&N Extreme lid) when I changed carbs to a Dominator. It looks like I likely was choking the carb/engine.
The Wix racing site shows their 14" X 3.01" to flow 1000 + CFM and they offer them in 1/4" taller increments too!
Thanks,
Mark

Last edited by Hemi Allstate; 12/31/14 04:56 PM.


1996 Ram 1500 Sport
1968 road runner
1952 Sears Allstate licensed, pump gas, Hemi 5.98 @ 115.73 1.33 60 ft. The best is yet to come. Painless Performance / Street RODDER magazine Top 100 for 2019
Re: Air filters on race cars?? [Re: Moparmal] #1715170
12/31/14 04:51 PM
12/31/14 04:51 PM
Joined: Aug 2003
Posts: 43,230
Bend,OR USA
C
Cab_Burge Online work
I Win
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Bend,OR USA
Moparmal, don't forget we race cars with motors, not motors on dynos The reason I'm pointing this out is I saw 8 HP loss on two different motors on two different engines dynos at two different altitudes testing the K&N Extreme filter lids and eventually ended doing a at the track test back to back to back, A,B,A, in less than twenty minutes between each run and saw a .020 to .030 ET reduction(quicker) and .3 MPH increase on a 3x14 filter using the lid This was on a 440 powered Duster with a sixpak type scoop molded on it, the air cleaner lid was close to the top of the scoop, less than a fingers width at the rear It was not sealed to the scoop either some of this hot rodding and race stuff doesn't always make since, HUH Test, test and test some more to learn whar does work


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Air filters on race cars?? [Re: Thumperdart] #1715171
01/01/15 05:02 AM
01/01/15 05:02 AM
Joined: Jan 2003
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Melbourne.....Oz-land
Moparmal Offline
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Quote:

470 BB 7500 max.............




You need appx 164 sq" of filtering area.

A 14x3 wont do it

A 16x3 wont do it (150.75sq")

A 14 x 4" WILL work.....179 sq"r

A 14 x 3 with extreme lid will work also.... = 221 sq" of filtering area.


On the issue of filter tops...I agree people do their own trialling..

BUT... theres no point doing a back to back if the filter without the lid wont support the required flow..........

Re: Air filters on race cars?? [Re: Moparmal] #1715172
01/01/15 12:59 PM
01/01/15 12:59 PM
Joined: Jan 2003
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Jacksonville, FL
Chris2581 Offline
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This is all good info.I'm putting my car back on the street and I'll need to use a air cleaner. Just bought some 14x3 Fram Air Hog filters at Rock Auto for less than $5.00 a filter.


Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
Re: Air filters on race cars?? [Re: Chris2581] #1715173
01/01/15 01:50 PM
01/01/15 01:50 PM
Joined: Jan 2003
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Akron, Ohio
ProSport Offline
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Here's my 10x2.75 filter on my 500" engine, if I ever make it to a track the filter will be coming off lol. I run an A-body dual snorkel factory scoop.

Re: Air filters on race cars?? [Re: ProSport] #1715174
01/01/15 02:44 PM
01/01/15 02:44 PM
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Posts: 15,439
Val-haul-ass... eventually
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BradH Offline
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I WANT to run a filter even at the track, but the better intake manifold I'd like to use is taller than the one that I can actually fit under my T/A hood scoop and won't allow for an adequately sized filter.

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.

Re: Air filters on race cars?? [Re: Thumperdart] #1715175
01/01/15 03:12 PM
01/01/15 03:12 PM
Joined: Jan 2007
Posts: 8,042
Mt Morris Michigan
mopar dave Offline
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didn't know the wix was that good. I guess i'll keep mine on there. I had planed on replacing it with a K&N,but i'll save my money. thanks Dom.

Re: Air filters on race cars?? [Re: mopar dave] #1715176
01/02/15 12:24 AM
01/02/15 12:24 AM
Joined: Mar 2003
Posts: 9,100
Rogue River, OR
Jeremiah Offline
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http://www.r2cperformance.com/

I like the idea behind these filters but I need to call them and ask about the base not having an "ideal entry" even though they sell a sub stack like product.

Great information in this thread. I guess I'll save my velocity stacks for looks when the car is in the shop.

Re: Air filters on race cars?? [Re: Jeremiah] #1715177
01/02/15 02:12 AM
01/02/15 02:12 AM
Joined: Jan 2007
Posts: 8,042
Mt Morris Michigan
mopar dave Offline
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I have their air cleaner for 4150. looks like the bass has a very good entry the way it fits the venturi's. they also claim a better flowing filter than a K&N. nice people.

Re: Air filters on race cars?? [Re: mopar dave] #1715178
01/02/15 02:17 AM
01/02/15 02:17 AM
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State of confusion
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Thumperdart Offline
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Quote:

didn't know the wix was that good. I guess i'll keep mine on there. I had planed on replacing it with a K&N,but i'll save my money. thanks Dom.





It just makes sense to me............If I drop the Wix on my car and the idle doesn`t change then we might be on to something.


72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
Re: Air filters on race cars?? [Re: Jeremiah] #1715179
01/02/15 10:52 AM
01/02/15 10:52 AM
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Mt. Eden Ky.
Hemi Allstate Offline
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Quote:

http://www.r2cperformance.com/


They claim 1600+ cfm for their 14" filters.
No prices that I could find though?

http://www.r2cperformance.com/14-inch-high-performance-street-air-filters.aspx

EDIT

I see that Summit has them.
Quite a spread on purpose and price!
http://www.summitracing.com/compare

Mark

Last edited by Hemi Allstate; 01/02/15 11:14 AM.


1996 Ram 1500 Sport
1968 road runner
1952 Sears Allstate licensed, pump gas, Hemi 5.98 @ 115.73 1.33 60 ft. The best is yet to come. Painless Performance / Street RODDER magazine Top 100 for 2019
Re: Air filters on race cars?? [Re: Hemi Allstate] #1715180
01/02/15 12:25 PM
01/02/15 12:25 PM
Joined: Oct 2003
Posts: 7,506
Az
Crizila Offline
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Quote:

Quote:

http://www.r2cperformance.com/


They claim 1600+ cfm for their 14" filters.
No prices that I could find though?

http://www.r2cperformance.com/14-inch-high-performance-street-air-filters.aspx

EDIT

I see that Summit has them.
Quite a spread on purpose and price!
http://www.summitracing.com/compare

Mark



on the R2C sight.


Fastest 300
Re: Air filters on race cars?? [Re: Thumperdart] #1715181
01/02/15 12:35 PM
01/02/15 12:35 PM
Joined: Jan 2007
Posts: 8,042
Mt Morris Michigan
mopar dave Offline
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it worth a try. I found my wix air filter on ebay for next to nothing.

Re: Air filters on race cars?? [Re: mopar dave] #1715182
01/02/15 12:46 PM
01/02/15 12:46 PM
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Az
Crizila Offline
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Lots of good info, except on the particulate size these different filter Mfg's are trying to keep out of your engine. Any of them can give you some awesome flow numbers if they are just trying to keep out - marbles.


Fastest 300
Re: Air filters on race cars?? [Re: Crizila] #1715183
01/02/15 12:53 PM
01/02/15 12:53 PM
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Romeo MI
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Quote:

Lots of good info, except on the particulate size these different filter Mfg's are trying to keep out of your engine. Any of them can give you some awesome flow numbers if they are just trying to keep out - marbles.




Thats what all this is about... what micron is the filter

Re: Air filters on race cars?? [Re: MR_P_BODY] #1715184
01/02/15 02:12 PM
01/02/15 02:12 PM
Joined: Oct 2003
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Az
Crizila Offline
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Quote:

Quote:

Lots of good info, except on the particulate size these different filter Mfg's are trying to keep out of your engine. Any of them can give you some awesome flow numbers if they are just trying to keep out - marbles.




Thats what all this is about... what micron is the filter



"It's a secret, only 3 women know".


Fastest 300
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