Club Cobra Keith Craft Racing  

Go Back   Club Cobra > Club Forums > NW Cobra Club

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

MMG Superformance
Nevada Classics
Main Menu
Nevada Classics
Nevada Classics
Keith Craft Racing
Advertise at CC
Banner Ad Rates
MMG Superformance
Keith Craft Racing
MMG Superformance
March 2024
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            

Kirkham Motorsports

 

 

Reply
 
LinkBack Thread Tools Display Modes
  #81 (permalink)  
Old 05-28-2009, 07:27 AM
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2003
Location: West Barnstable, MA
Cobra Make, Engine: Shelby CSX4252,aluminum body, 427 side-oiler, Webers
Posts: 138
Not Ranked     
Default

Quote:
Originally Posted by acindrich View Post
I'd love webers on my car for looks alone. Staggering performance is just icing on the cake. Problem is I'm still not confident I could put them on and make them work, or that I have the patience to do it. So, what sort of 'specialist' would one have to go to and just pay to have it done? Can the average Joe at your local garage do it? Is there a way to order them already tuned and just bolt them on? Or, do they really require someone willing to pay the price to own them what with their seemingly constant maintenance?
acindrich, I can only speak from my own experiences and other people who have run Webers (or attempted to). There are shops and skilled mechanics all over the place who you could bring your setup to and have them do the work. You'd be paying for their labor and who knows how high that could run? I know how much time I have in setting up my system and I'm fortunate somebody else's meter wasn't running the whole time. I am NOT a master mechanic by any stretch and have limited abilities when it comes to hardcore engine work. A lot of guys can tear down their motors, replace the crank, cam, do the machine work etc. That's not me so I know it's possible for someone with my skill levels to sort out a set of Webers, assuming the engine is healthy, the Weber setup is compatible with the motor, and you're willing to put in the time.

Here's the best reason I've found to try to handle your Weber setup yourself rather than farm it out: You will gain a tremendous amount of insight into the overall "health" of your engine and (I know I'm getting weird here) be able to have a "conversation" with it as you gradually find the ideal setup. It's almost like training your dog. If you can communicate with him, he'll obey your commands. Try a certain jet size, idle mixture adjustment, etc. and you're telling your engine "I think this is what you want." Your engine will tell you if you're right or wrong on your test drive and so you've just had a conversation with it. If you think I should be locked up somewhere, I understand fully.

The other reason I recommend you take the DIY plunge is that you'll never be "Weber self-sufficient" if you depend on someone else to troubleshoot your system whenever you have a problem or question (unless, of course, your brother-in-law works for Inglese). Once you've understood what each component in the carburetor does, how to access them, how your changes are supposed to impact the setup, and you graduate from fear and intimidation to confidence and a comfort level that comes with familiarity, you'll be glad you didn't need someone else's intervention throughout the whole process.

Now, there IS help available--either places like Redline or Inglese or Webers Direct, plus there is a good selection of books and manuals out there which cover the entire world of Webers. But I really think you have to be your own best friend when you finally make the move. And before you know it, you'll be helping other people running Webers because you've been there and done that.

Finally, there is a misconception that Webers need constant maintenance. If my experiences are any example, once you've got them dialed in, put all your tools and manuals away and drive the car. Webers will hold their tune unless a problem develops somewhere else in your engine or you move from Oahu to Fairbanks, Alaska. Can an idle jet get clogged up on occasion and starve a cylinder? Sure. Can a hex link lossen up and change the linkage synchronicity? Yup. But that takes me back to the point I made previously. If you understand your system and can recognize what your engine is "saying" when it's not happy, you can correct the problem yourself. But I haven't had any ongoing maintenance issues with my 48's since I got them in the sweet spot.

And yes, that takes patience.

Last edited by cobraviper_99; 05-28-2009 at 09:20 AM..
Reply With Quote
  #82 (permalink)  
Old 05-28-2009, 09:13 AM
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2008
Location: Yorba Linda, CA
Cobra Make, Engine: Legendary Autos, 427 SC
Posts: 62
Not Ranked     
Default

If any of you FE guys are wondering what a set of Weber IDAs would be like I have a set for sale listed on this site. I took them off my FE 427 CO because I have no time to tune. I also purchased a set of 40MM Chokes, and F14 Emulson Tubes as per Eljaros Weber Tuning thread but decided I would save for a EFI Weber set up. I am borrowing a buddies spare manifold and carb until $ are available. I will say that I noticed a LOSS of Torque on the low end with the carb switch. Boy, those Webers do make a difference!!!! Just a note on my manifold. The Holman Moody manifold I have is a straight cut so could be a clearence issue. Not sure since I bought the car and the prior owner had installed large air filters and had cut a very large opening in the hood to clear the filters. I think if only stack filters/screens were used this manifold would still offer proper under hood clearence. Anyway, look at my for sale posting. Could be a cheap way to try or get into Webers. The F14 E tubes and chokes alone cost over $400.00 a real savings as I will include in sale of Weber set up. I just lowered price since they are taking up space on my work bench. If no replys from the Forum then they will go Ebay this weekend.
OCCOBRA
Reply With Quote
  #83 (permalink)  
Old 05-28-2009, 09:15 AM
Rick Parker's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: California, Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
Not Ranked     
Default

For those contemplating the Weber plunge, the learning curve is steep. BUT if you understand mechanics, and basic carburetion theory you will reach a point where you say to yourself "I got it". Book and tuning manuals are availabe some are much better than others, be sure they cover the carbs you are interested in. Without a doubt the best 1st hand Weber knowledge for our engines is right here. Small Blocks, Fake small blocks, and Big Blocks. We all share information, some understand it better than others but that is to be expected. The left over jets and other bits are the price of admission. Once you arrive at your "Tune" you can sell the other stuff of if you want to, or complain about how much it costs, your choice. Good luck
__________________
Rick

As you slide down the Banister of Life, may the splinters never be pointing the wrong way

Last edited by Rick Parker; 06-03-2009 at 09:02 PM..
Reply With Quote
  #84 (permalink)  
Old 05-28-2009, 09:35 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2006
Cobra Make, Engine: kirkham stroker 48 webers
Posts: 83
Not Ranked     
Default

I used the 10 degree angle manifold for an FE engine and had my machine shop cut the opening in the hood larger for the velocity stacks. It worked great, otherwise the hood will restrict airflow to some of the carbs.
Reply With Quote
  #85 (permalink)  
Old 05-28-2009, 10:43 AM
rokndad's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2007
Location: San Clemente, CA
Cobra Make, Engine: CSX 4758, CSX 381 Keith Craft 482 w/ Weber 48 IDA's
Posts: 492
Not Ranked     
Default

Quote:
Originally Posted by OCCOBRA View Post
The F14 E tubes and chokes alone cost over $400.00 a real savings as I will include in sale of Weber set up. .
OCCOBRA
Not if you're a careful shopper. I just looked at my source on eBay and the chokes, any size are 2 for $25 and the e-tubes, any size are 4 for $35. That's a grand total of $170, not $400. I'm saying this so that those thinking to get into Webers, don't get thoroughly turned off from some of the misinformation that gets thrown about.
Reply With Quote
  #86 (permalink)  
Old 05-28-2009, 11:10 AM
race-it's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2007
Location: Graham, WA, wa
Cobra Make, Engine: Everett-Morrison, 347 Stroker
Posts: 425
Not Ranked     
Default

ndpace,, That is what I have on my car. I like them. I'm not all tuned in yet but out of tune I have much more torque than the duel quads I was running. See my pictures in these posts. Page 3.
Jim
Reply With Quote
  #87 (permalink)  
Old 05-28-2009, 01:54 PM
race-it's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2007
Location: Graham, WA, wa
Cobra Make, Engine: Everett-Morrison, 347 Stroker
Posts: 425
Not Ranked     
Default

A couple of things,

If someone who uses the LM1 and connects to your computer, I would like to call you and ask about settings. I cant seem to make my RPM to display on the guages.

I have tried all my jets and still unable to keep between 12.5 and 15. Most of the time graph shows between 15 and 18.
Main jet 145 (Largest I have) I ordered 160 &165.
I used the smallest air corrector that I have. 160

Jim
Reply With Quote
  #88 (permalink)  
Old 06-02-2009, 08:03 PM
race-it's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2007
Location: Graham, WA, wa
Cobra Make, Engine: Everett-Morrison, 347 Stroker
Posts: 425
Not Ranked     
Default

For those of you who run webers and use a LM1 box to check air fuel ratio, I have these questions.

Am I splitting hairs trying to keep the AFR between 12.5 and 15 at all times?
Does your weber go to lets say up to 20 for a moment during driving then back down to the 13 14 range?

I've been told to have an average range of between 12.5 and 15 knowing that at some times your LM1 may read 9 and 20 but the vast majority of the time stay between 12 and 15?

Jim
Reply With Quote
  #89 (permalink)  
Old 06-03-2009, 05:47 AM
priobe's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2004
Location: miami, FL
Cobra Make, Engine: E-M Cobra Ford FE 427 w/ Webers 48 IDA
Posts: 1,380
Not Ranked     
Default

race-it,

You wanna keep the AR around 12.5 -12.8. This will allow you to make good power. You should not experience any popping with this AR.

If you are shooting for anything above 13.5 you will never get it. This will be too lean.

It looks like you might need to order some jets.

I sent you a email to further discuss.
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 11:10 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy