Another air filter ??

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Jan 28, 2007 | 04:53 PM

#21

electaRICK

Extreme HDF Member

Joined: Sep 2006

Posts: 10,920

Likes: 6

From: Upstate New York

RE: Another air filter ??

heres the biggest reason,,,,,,,, you will wanna be able to post all your mods here like everyone else

cant be the only kid on the block without one!!!!lol

Jan 28, 2007 | 04:53 PM

#22

redhwk44

Road Master

Joined: Jun 2006

Posts: 1,220

Likes: 2

From: iowa

RE: Another air filter ??

Another try.

<center>
<a href="http://i164.photobucket.com/albums/u...4/4StageII.jpg" target="_blank">
<img src="http://i164.photobucket.com/albums/u10/redhwk44/th_4StageII.jpg"></a>
<a href="http://i164.photobucket.com/albums/u...4/3StageII.jpg" target="_blank">
<img src="http://i164.photobucket.com/albums/u10/redhwk44/th_3StageII.jpg"></a>
<a href="http://i164.photobucket.com/albums/u...4/2StageII.jpg" target="_blank">
<img src="http://i164.photobucket.com/albums/u10/redhwk44/th_2StageII.jpg"></a>
<a href="http://i164.photobucket.com/albums/u...4/1StageII.jpg" target="_blank">
<img src="http://i164.photobucket.com/albums/u10/redhwk44/th_1StageII.jpg"></a>
<br><br>
</center>

Jan 28, 2007 | 05:17 PM

#23

Hogtoad

Cruiser

Joined: Jan 2007

Posts: 143

Likes: 0

From: Ca.

RE: Another air filter ??

Thanks everyone for the good ideas. I WAS looking for ways to improve air flow but now I'm done looking. Thanks again.

[IMG]local://upfiles/22834/6EA26939098C4972AF5C14B7C0F42206.jpg[/IMG]

Jan 28, 2007 | 06:51 PM

#24

UltraKla$$ic

Ultimate HDF Member

Joined: Dec 2006

Posts: 8,294

Likes: 33

From: Po-Dunk Looziana

RE: Another air filter ??

Quote:

ORIGINAL: redhwk44

Another try.

<center>
<a href="http://i164.photobucket.com/albums/u...4/4StageII.jpg" target="_blank">
<img src="http://i164.photobucket.com/albums/u10/redhwk44/th_4StageII.jpg"></a>
<a href="http://i164.photobucket.com/albums/u...4/3StageII.jpg" target="_blank">
<img src="http://i164.photobucket.com/albums/u10/redhwk44/th_3StageII.jpg"></a>
<a href="http://i164.photobucket.com/albums/u...4/2StageII.jpg" target="_blank">
<img src="http://i164.photobucket.com/albums/u10/redhwk44/th_2StageII.jpg"></a>
<a href="http://i164.photobucket.com/albums/u...4/1StageII.jpg" target="_blank">
<img src="http://i164.photobucket.com/albums/u10/redhwk44/th_1StageII.jpg"></a>
<br><br>
</center>

Sweet looking! Gonna look even better witha ton of rain pouring into it if you ride where/as long as I ride.

Head to the pet store and get some gold fish.............you're gonna need them.

j/k

Jan 29, 2007 | 01:25 AM

#25

Mountainkowboy

Thread Starter

Grand HDF Member

Joined: Jan 2006

Posts: 4,198

Likes: 1,168

From: Anywhere we stop

RE: Another air filter ??

Problem solved, found an early SE st1 kit on ebay. Got it for $22.00 plus shipping, for a total of $37.00.

Jan 29, 2007 | 09:23 AM

#26

Longtimegone

Road Captain

Joined: May 2006

Posts: 554

Likes: 0

From: Citizen of the Republic of Texas, now in GA

RE: Another air filter ??

Mountain, where did you get your numbers on airflow? That 200cfm you quoted on a 110" engine is at about 3372 rpms.

Someone tell me if I am wrong, but this is the calc I was using. I am not really an engineer.

Engine size in ci x rpms = total flow in cu in/minat revs
total flow in cu in/minat revs / (12x12x12) = total flow in cfm at revs
total flow in cfm at revs x air/fuel ratio / 1+a/f ratio = total air flow in cfm at revs.

88" @ 3500 rpm = (88x3500/(12x12x12))13.2/14.2 = 165.7 cfm
88" @ 6200 rpm = 293.5 CFM

There are other factors involved as TexasRedneck pointed out. If you want to increase the performance of your 88" motor, you probably want a cfm somewhere between the two numbers above.