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Cobra Head/airbox connection to the carby

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jeffrey_davidson(at)earth
Guest

Posted: Tue Oct 21, 2008 5:52 pm Post subject: Cobra Head/airbox connection to the carby

JabiruUSA doesn't seem to have a source for the recommended smooth air elbow recommended from the airbox to the carby intake.  Does anyone have a source?  My local auto parts stores just looked at me when I told them I just wanted to look through their hose selections to find one.  Seems if you can't tell them what car it goes on, you are out of luck ….   It is 2 and one quarter inch inside diameter in a 90 degree elbow.  This may or may not be the part they refer to as the Cobra Head.  Obviously, one did not come with my FWF kit, just scat hose.  Thanks ….  

Jeff  

   

       [quote][b]

notsew_evets(at)frontiern
Guest

Posted: Tue Oct 21, 2008 6:04 pm Post subject: Cobra Head/airbox connection to the carby

intakehoses dot com

  

  

  

  

 [quote]   ---

rshannon

Joined: 05 Sep 2007
Posts: 62

Posted: Tue Oct 21, 2008 6:56 pm Post subject: Cobra Head/airbox connection to the carby

The hose geometry will depend on each airframe and FWF layout, of course, but FWIW, on my Murphy Rebel, with the std. mixer box mounted straight back of the engine and high, a Gates brand #20748 radiator hose fitting works well for turning the corner. The turn is a little wider than 90 deg., perhaps 105-110 deg. Another short piece of straight 2.25" hose completes the run up to a bottom exit from the mixer box.

 

A photo is at at http://n254mr.com/node/572 . There's a lot of stuff in the way in this photo, including Magnecor plug wires dangling about, but you can get the idea. It's an AeroCarb installation, but the Bing intake geometry would be much the same.

 

Ron

On Tue, Oct 21, 2008 at 6:49 PM, Jeff <jeffrey_davidson(at)earthlink.net (jeffrey_davidson(at)earthlink.net)> wrote:

[quote]              

   

JabiruUSA doesn't seem to have a source for the recommended smooth air elbow recommended from the airbox to the carby intake.  Does anyone have a source?  My local auto parts stores just looked at me when I told them I just wanted to look through their hose selections to find one.  Seems if you can't tell them what car it goes on, you are out of luck ….   It is 2 and one quarter inch inside diameter in a 90 degree elbow.  This may or may not be the part they refer to as the Cobra Head.  Obviously, one did not come with my FWF kit, just scat hose.  Thanks ….  

Jeff  

 



[b]

marin

Joined: 06 Mar 2007
Posts: 16
Location: Stanwood WA

Posted: Tue Oct 21, 2008 7:35 pm Post subject: Cobra Head/airbox connection to the carby

Jeff  

   

I placed mine right behind the engine and have a straight hose into it. I will be ordering my hose from this web site that has the hose you need.  

   

   

http://vibrantperformance.com/catalog/index.php?cPath=1022_1036&osCsid=83b8c2a0e6b04cdac7cc52e4a45c0749  

   

     

Marin  

   

This e-mail is confidential and it is intended only for the addressees. Any review, dissemination, distribution, or copying of this message by persons or entities other than the intended recipient is prohibited. If you have received this e-mail in error, kindly notify us immediately by telephone or e-mail and delete the message from your system. The sender does not accept liability for any errors or omissions in the contents of this message which may arise as a result of the e-mail transmission.  

  

--

_________________
Marin

craig(at)craigandjean.com
Guest

Posted: Tue Oct 21, 2008 8:25 pm Post subject: Cobra Head/airbox connection to the carby

This was the part number and price from intakehoses.com at the end of 2006. I got the part number from Lance Gingell’s build log:  

   

90L225         Rubber Elbow 2.25" ID X 90 Degree                      $9.49  

   

-- Craig  

       

From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of steve

 Sent: Tuesday, October 21, 2008 8:02 PM

 To: jabiruengine-list(at)matronics.com

 Subject: Re: Cobra Head/airbox connection to the carby  

  

  

     

intakehoses dot com  

    

   

    

   

    

   

    

   

   	  Quote: 	
		      

----- Original Message -----   

    

From: Jeff  (jeffrey_davidson(at)earthlink.net)  

    

To: jabiruengine-list(at)matronics.com (jabiruengine-list(at)matronics.com)   

    

Sent: Tuesday, October 21, 2008 6:49 PM  

    

Subject: JabiruEngine-List: Cobra Head/airbox connection to the carby  

    

   

  

   

JabiruUSA doesn't seem to have a source for the recommended smooth air elbow recommended from the airbox to the carby intake.  Does anyone have a source?  My local auto parts stores just looked at me when I told them I just wanted to look through their hose selections to find one.  Seems if you can't tell them what car it goes on, you are out of luck ….   It is 2 and one quarter inch inside diameter in a 90 degree elbow.  This may or may not be the part they refer to as the Cobra Head.  Obviously, one did not come with my FWF kit, just scat hose.  Thanks ….  

Jeff  

    	  Quote: 	
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       [quote][b]

DaveG601XL

Joined: 27 Oct 2006
Posts: 351
Location: Cincinnati, Oh

Posted: Wed Oct 22, 2008 3:02 am Post subject: Re: Cobra Head/airbox connection to the carby

Jeff,



The Intakehoses.com 2.25" 90 degree bend hose is what I am using too.  It is not as easy to install and remove as SCAT ducting, but it is working well.  Picture attached.



Good luck,

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_________________
David Gallagher
Cincinnati, OH area

jeffrey_davidson(at)earth
Guest

Posted: Wed Oct 22, 2008 4:06 pm Post subject: Cobra Head/airbox connection to the carby

Thank you to everyone that replied.  I ordered the elbow today.

Jeff Davidson



CH601-HD

Jabiru 3300A

First engine start coming up, then its FAA Inspection time.



Do not archive

challgren(at)mac.com
Guest

Posted: Wed Oct 22, 2008 7:24 pm Post subject: Cobra Head/airbox connection to the carby

Craig:



It is still the same part number but the cost has escalated to $13.40.  However, that is over $80 less than I paid for the Cobra head I received from Jab which was way too big to fit in the small space available.

Thanks for the info on intake hoses dot com.  I was just about to google hoses when the hint showed up in my in-box.  Will order one today.

Stan

701/3300



On Oct 21, 2008, at 22:24 , Craig Payne wrote:

 	  Quote: 	
		  This was the part number and price from intakehoses.com at the end of 2006. I got the part number from Lance Gingell’s build log:

 

90L225         Rubber Elbow 2.25" ID X 90 Degree                      $9.49

 

-- Craig

 

From: owner-jabiruengine-list-server(at)matronics.com (owner-jabiruengine-list-server(at)matronics.com) [mailto:owner-jabiruengine-list-server(at)matronics.com (owner-jabiruengine-list-server(at)matronics.com)] On Behalf Of steve

Sent: Tuesday, October 21, 2008 8:02 PM

To: jabiruengine-list(at)matronics.com (jabiruengine-list(at)matronics.com)

Subject: Re: Cobra Head/airbox connection to the carby

 

intakehoses dot com



 



 



 

	




 [quote][b]

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Thu Oct 23, 2008 5:18 am Post subject: Cobra Head/airbox connection to the carby

I built my own "air straightener/divider." It was a lot of work, and  

I can't say as it gave me any benefit...maybe, but I'm not positive.  

Here's a picture. I started out with the curved fiberglas tube which  

I built, laying fiberglas over a section of PVC plumbing. I used it  

for awhile just as a curved tube, then later cut it along the  

vertical axis and added the air straightening vanes, and reassembled.

Lynn Matteson

Kitfox IV Speedster

Jabiru 2200, 579.1hrs

Sensenich 62x46

flying again (17 hrs) after rebuild, and new Electroair direct-fire  

ignition system

On Oct 22, 2008, at 11:23 PM, Stanley Challgren wrote:

 	  Quote: 	
		   Craig:

 It is still the same part number but the cost has escalated to  

 $13.40.  However, that is over $80 less than I paid for the Cobra  

 head I received from Jab which was way too big to fit in the small  

 space available.

 Thanks for the info on intake hoses dot com.  I was just about to  

 google hoses when the hint showed up in my in-box.  Will order one  

 today.

 Stan

 701/3300

 On Oct 21, 2008, at 22:24 , Craig Payne wrote:

> This was the part number and price from intakehoses.com at the end  

> of 2006. I got the part number from Lance Gingell’s build log:

>

> 90L225         Rubber Elbow 2.25" ID X 90  

> Degree                      $9.49

>

> -- Craig

>

> From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner- 

> jabiruengine-list-server(at)matronics.com] On Behalf Of steve

> Sent: Tuesday, October 21, 2008 8:02 PM

> To: jabiruengine-list(at)matronics.com

> Subject: Re: Cobra Head/airbox connection to  

> the carby

>

> intakehoses dot com

>

>

 	  Quote: 	
		   ========================> ========================> ========================

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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

matronics(at)rtist.nl
Guest

Posted: Thu Oct 23, 2008 9:05 am Post subject: Cobra Head/airbox connection to the carby

Hey Lynn, just curious.. With all the modifications you have made to your 

engine, what changes did you make to the Jabiru serial number placard to 

improve it??



Just kidding, I'm enjoying all the good ideas you share with us.



Thanks!



Rob



---

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Thu Oct 23, 2008 10:29 am Post subject: Cobra Head/airbox connection to the carby

Oh, man, I never thought about that! Let's see....Jabiru 2200A dash  

Super Ignitor dash Rocker Bushing Supreme...so maybe Jabiru  

2200ASIRSB...something like that? : )



Or maybe you meant to the placard itself....maybe I could airfoil the  

leading edge of it to help lift....that's it, I'm doin' it!



Lynn Matteson

Kitfox IV Speedster

Jabiru 2200, 579.1hrs

Sensenich 62x46

flying again (17 hrs) after rebuild, and new Electroair direct-fire  

ignition system

do not archive

On Oct 23, 2008, at 1:04 PM, Rob Turk wrote:



[quote] 

 <matronics(at)rtist.nl>



 Hey Lynn, just curious.. With all the modifications you have made  

 to your engine, what changes did you make to the Jabiru serial  

 number placard to improve it??



 Just kidding, I'm enjoying all the good ideas you share with us.



 Thanks!



 Rob



 ---

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

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