Keith Craft Inc.- We service what we sell!!! Check out our Cobra engines!!! We build high performance racing engines and components for the fast pace strip racing industry as well as daily drivers who want to be FIRST!!!

FE Forums sponsored by Keith Craft Inc.


Go Back   Club Cobra > Engine Building, Tuning, and Induction > FE TALK

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

Keith Craft Racing
Nevada Classics
Main Menu
Nevada Classics
Nevada Classics
Advertise at CC
Banner Ad Rates
Keith Craft Racing
Keith Craft Racing
November 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

Kirkham Motorsports

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 06-15-2004, 10:12 AM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2000
Location: Leesburg,, VA
Cobra Make, Engine: ERA Cobra #273, 427 S/O, ERA GT-40 #2057, Excalibur Cobra.
Posts: 1,011
Not Ranked     
Default Alternators ????

HEY, GUYS,

I'M LOOKING FOR AN ALTERNATOR FOR MY 427 S/O.

IT'S A SMALL FRAME FORD (CASTING NUMBER 13).

I NEED THE SMALL FRAME BECAUSE OF THE (OBVIOUS) SERIOUS SPACE LIMITATIONS.

I'D LIKE TO GET SOMETHING WITH ABOUT A 95 AMP OUTPUT WITH 30 AMPS AT 1500 RPM. - - - OR AS CLOSE AS I CAN GET TO THAT.

I TRIED THE ARCHIVES - BECAUSE I'M SURE THE TOPIC MUST HAVE COME UP BEFORE BUT FOR SOME REASON (PROBABLY MY BEING "TECHNO-CHALLENGED") I CAN'T ACCESS THE ARCHIVES.

ANY HELP WOULD BE MUCH APPRECIATED.

THANKS - AND - Y'ALL HAVE A REALLY GREAT DAY.

BLACKJACK
__________________
It's impossible to make anything FOOLPROOF - - Because FOOLS are so ingenious.
Reply With Quote
  #2 (permalink)  
Old 06-15-2004, 10:18 AM
Ron61's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: Dec 2001
Location: Shasta Lake, CA
Cobra Make, Engine:
Posts: 26,593
Not Ranked     
Post

Blackjack,

Just a suggestion, but if you already have an alternator that will fit, then you could do what I did. I took my stock one in and had the insides replaced with a 100 Amp insides and everything has worked great for six years. We tested it 4 months ago and it still will put out the full 100 amps. That way I didn't have to go to the big, oversized ones they have in the auto stores around here.

Ron

__________________
Ron 61
Ronnie Widener


View my Miscellaneous Gallery
Reply With Quote
  #3 (permalink)  
Old 06-15-2004, 10:45 AM
trularin's Avatar
Member of the north
Visit my Photo Gallery

 
Join Date: May 2003
Cobra Make, Engine: A Cobra
Posts: 11,207
Not Ranked     
Default

Ron has a point, the guts may fit with little or no effort. Provided you have one that is currently the right size.

Just my $0.02
__________________
I'm a writer, feed the artist and buy a book.
Reply With Quote
  #4 (permalink)  
Old 06-15-2004, 12:14 PM
CJ428CJ's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2000
Location: Livermore, CA
Cobra Make, Engine: ERA #629, BBM Side Oiler Block, 482ci, Richmond 5 speed
Posts: 852
Not Ranked     
Default

95 amps? Why do you need such a high output? 60-65 amp alternators are easy to come by and I would think that would do for just about any Cobra application.

Chris
Reply With Quote
  #5 (permalink)  
Old 06-16-2004, 07:30 AM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2000
Location: Leesburg,, VA
Cobra Make, Engine: ERA Cobra #273, 427 S/O, ERA GT-40 #2057, Excalibur Cobra.
Posts: 1,011
Not Ranked     
Default

I'D SETTLE FOR A 65 AMP UNIT BUT WOULD PREFER THE 90-95 AMP IN ORDER TO GET 50 -60 AT LOWER RPM.

MY FANS DRAW 30 AMPS - ADD TWO FUEL PUMPS (ONLY USE ONE AT A TIME) - 55 WATT HEADLIGHTS (EACH) AND 100 WATT DRIVING LIGHTS (EACH) AND HEATED SEATS FOR THE WINTER. IT GETS COLD IN DC AND I NEVER PUT THE TOP ON. AT STREET RPM'S IT'S MARGINAL. I SUGGESTED ONLY HEATING THE DRIVERS SEAT (FOR POWER CONSUMPTION PURPOSES) AND MY FRIEND SAID "THAT'S COOL - - AS LONG AS I'M DRIVING".

THANKS - - AND Y'ALL HAVE A REALLY GREAT DAY.

BLACKJACK
__________________
It's impossible to make anything FOOLPROOF - - Because FOOLS are so ingenious.
Reply With Quote
  #6 (permalink)  
Old 06-16-2004, 08:32 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2001
Location: Lynn MA. USA,
Posts: 63
Not Ranked     
Default

Blackjack,


Try using a smaller pulley. I had the same problem and ended up using a pulley that was a quarter of an inch smaller and it cured the problem. If your running a underdrive pulley it will turn the alternator slower and you lose a lot of amperage at idle.


COBRAMAN
Reply With Quote
  #7 (permalink)  
Old 06-16-2004, 08:49 AM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2000
Location: Leesburg,, VA
Cobra Make, Engine: ERA Cobra #273, 427 S/O, ERA GT-40 #2057, Excalibur Cobra.
Posts: 1,011
Not Ranked     
Default

COBRAMAN - - -

I'M USING A 2.5 INCH PULLY NOW. I NEED THIS FOR THE ADDITIONAL REASON OF BELT CLEARANCE AT THE BRACKETS.

MAIN REASON FOR CHANGE OF ALTERNATORS AT THIS TIME IS THAT THE CURRENT ALT. QUIT.

THANKS - - AND Y'ALL HAVE A REALLY GREAT DAY.

BLACKJACK
__________________
It's impossible to make anything FOOLPROOF - - Because FOOLS are so ingenious.
Reply With Quote
  #8 (permalink)  
Old 06-16-2004, 11:24 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2001
Location: Lynn MA. USA,
Posts: 63
Not Ranked     
Default

Blackjack

What you are looking for is a ford small case 7078 alternator, it is the only one that will fit without modification. Tuff stuff makes them in chrome or painted in 70 and 100 amp and also 1 wire. If you go to their web site you can find them. Jegs has them in stock. Even with the 100 amp they still idle at the same amperage Mine is a 65amp chrome alternator that ive been running for years (rebuilt once). I was going to get a new one for more amperage but before I did I took it to the shop and had them check it out. It put out 55amps at 2200rpm aternator speed. which was more than enough at idle. thus I went to a 2 5/16 pulley and have had no trouble since.

COBRAMAN
Reply With Quote
  #9 (permalink)  
Old 06-16-2004, 01:43 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2000
Location: Leesburg,, VA
Cobra Make, Engine: ERA Cobra #273, 427 S/O, ERA GT-40 #2057, Excalibur Cobra.
Posts: 1,011
Not Ranked     
Default

THANKS, COBRAMAN - - -

I'LL CHECK THAT OUT. I WANT TO GET ALL THE "GREMLINS" TAKEN CARE OF BEFORE I STRIKE OUT FOR DVSF-IV.

Y'ALL HAVE A REALLY GREAT DAY.

BLACKJACK
__________________
It's impossible to make anything FOOLPROOF - - Because FOOLS are so ingenious.
Reply With Quote
  #10 (permalink)  
Old 06-16-2004, 01:57 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2000
Location: Warrenton, VA
Cobra Make, Engine: FFR2229K, Vortech-blown 306 (446rwhp, 442 rwtq)
Posts: 236
Not Ranked     
Default

BJ - you might want to stop by Artie's Auto Electric and see if he can rebuild it using higher amp "guts".

Artie's Auto Electric
7619 Centreville Rd. (couple miles north of Manassas on 28)
703-361-0600

He usually turns stuff around in a day or two.
__________________
Wade Chamberlain
Reply With Quote
Reply



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 07:02 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