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 14Likes
12-03-2020, 03:15 PM
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CC Member
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Join Date: Sep 2012
Cobra Make, Engine: ERA #816, 427 Side Oiler
Posts: 92
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Not Ranked
Original Style Alternator
Anyone install an original style alternator (C5TF-10300-F) on their ERA with an FE? Any issues?
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12-03-2020, 04:04 PM
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CC Member
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Join Date: Nov 2007
Location: Clayton,
IN
Cobra Make, Engine: ERA 838
Posts: 1,122
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Not Ranked
I think that is the type/style suggested by ERA.
What do you currently have?
John
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12-03-2020, 07:15 PM
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CC Member
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Join Date: Sep 2012
Cobra Make, Engine: ERA #816, 427 Side Oiler
Posts: 92
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Not Ranked
I have the Delco part number called out in the manual which I purchased the NAPA equivalent. I was looking for something that looked more original, I don't like the one I have that is cast in chineseium...
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12-03-2020, 07:56 PM
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CC Member
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Join Date: May 2006
Location: Manchester,
MO
Cobra Make, Engine: Hurricane - FE
Posts: 624
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Not Ranked
This article may shed some light on your issue
Shelby & FE alternators
I put a 45amp 1G on my first car and found it often 'discharging' because the alternator couldn't keep up with the amperage requirements. Went with a hybrid on the second build. 100amps and most people can't tell the difference from an original
Paul |
12-03-2020, 09:48 PM
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CC Member
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Join Date: Feb 2014
Location: White City,
SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,908
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Not Ranked
Quote:
Originally Posted by PaulProe
This article may shed some light on your issue
Shelby & FE alternators
I put a 45amp 1G on my first car and found it often 'discharging' because the alternator couldn't keep up with the amperage requirements. Went with a hybrid on the second build. 100amps and most people can't tell the difference from an original
Paul |
Hybrid? Is that a 1G case with 3G internals?
__________________
Brian
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12-03-2020, 09:55 PM
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CC Member
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Join Date: May 2006
Location: Manchester,
MO
Cobra Make, Engine: Hurricane - FE
Posts: 624
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Not Ranked
As I understand it, the main case is the Ford 1g. The rear of the case comes from a GM vehicle. With that, they're able to pump out 140 Amps. Take a look at the Tuff Stuff site for more details and info
It will fit an FE, depending on the heads used. Clearances get pretty tight
Paul
Last edited by PaulProe; 12-03-2020 at 10:00 PM..
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12-04-2020, 04:02 AM
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Senile Club Cobra Member
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Join Date: Feb 2001
Location: Buffalo, NY USA,
NY
Cobra Make, Engine: Superformance
Posts: 4,527
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Not Ranked
We have these for the correct alternator: https://www.timemachineauto.com/s2cs...lternator.html
You can build a "1G" to about 70 amps without changing the original type case. |
12-04-2020, 08:27 AM
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CC Member
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Join Date: Jun 2014
Location: Dallas,
TX
Cobra Make, Engine: ERA #812 427/482 FE
Posts: 495
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Not Ranked
I have a Powermaster 7078, which is a 75A direct replacement for an original alternator. It works well in my ERA with FE.
__________________
Chris
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12-04-2020, 01:06 PM
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CC Member
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Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 734
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Not Ranked
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12-04-2020, 01:07 PM
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CC Member
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Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 734
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Not Ranked
Forgot to mention that getting the original style alternator fan is the real tricky part...
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12-04-2020, 01:38 PM
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CC Member
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Join Date: Sep 2012
Cobra Make, Engine: ERA #816, 427 Side Oiler
Posts: 92
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Not Ranked
Quote:
Originally Posted by Mongoose930
Forgot to mention that getting the original style alternator fan is the real tricky part...
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That's the one I was looking at... the 55A is all I need. What was tricky about the fan? Also, did you have any issues with your belt alignment? |
12-04-2020, 06:30 PM
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CC Member
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Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 734
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Not Ranked
Craig did the installation so I cannot comment on the belt alignment. We used old school Ford pulleys and I do not recall there being an issue. My understanding is that the original BB cobras used a high-performance pulley / fan on the alternator. Finding that was not easy.
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12-04-2020, 06:36 PM
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CC Member
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Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 734
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Not Ranked
Now that I think about it, Craig may have made to make a spacer for the pulley. I am sure if he sees this he will comment.
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12-04-2020, 06:58 PM
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CC Member
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Join Date: Sep 2012
Cobra Make, Engine: ERA #816, 427 Side Oiler
Posts: 92
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Not Ranked
Quote:
Originally Posted by Mongoose930
Now that I think about it, Craig may have made to make a spacer for the pulley. I am sure if he sees this he will comment.
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Thanks for the info! I take it that the pulley and fan from that site are not the correct ones?
Hopefully Craig chimes in... |
12-04-2020, 07:15 PM
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CC Member
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Join Date: Jan 2011
Cobra Make, Engine: Hi-Tech
Posts: 734
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Not Ranked
I do not believe they offer the correct fan/pulley for a cobra. It is almost impossible to find a reproduction, never mind an original...
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12-05-2020, 04:11 AM
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CC Member
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Join Date: Sep 2012
Cobra Make, Engine: ERA #816, 427 Side Oiler
Posts: 92
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Not Ranked
Quote:
Originally Posted by Mongoose930
I do not believe they offer the correct fan/pulley for a cobra. It is almost impossible to find a reproduction, never mind an original...
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Figures, well it is what it is. I don't have an original Cobra so I'm not going to lose sleep over that. |
12-05-2020, 06:34 AM
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Senile Club Cobra Member
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Join Date: Feb 2001
Location: Buffalo, NY USA,
NY
Cobra Make, Engine: Superformance
Posts: 4,527
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Not Ranked
Quote:
Originally Posted by Mongoose930
I do not believe they offer the correct fan/pulley for a cobra. It is almost impossible to find a reproduction, never mind an original...
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Yes,
They are had to find. You can use the standard single sheaf pulley from a T-Bird (63-64) or Lincoln of the same vintage. The last N.O.S. large diameter pulley we had went for over $600.00! Dearborn Steel Tube did a run of repops some years ago for the Thunderbolts, etc. but they have dried up. We would entertain doing a run if we could sell at least 50 units at somewhere between $100.00 and $150.00.
 
This is with the smaller diameter pulley which we have some original, used units. We also have the round case 1G alternator cores. |
12-05-2020, 07:17 AM
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CC Member
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Join Date: Oct 2002
Location: Fairfield,
CT
Cobra Make, Engine: HM-2027 / 427 SO
Posts: 815
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Not Ranked
Quote:
Originally Posted by Mark IV
Yes,
They are had to find. You can use the standard single sheaf pulley from a T-Bird (63-64) or Lincoln of the same vintage. The last N.O.S. large diameter pulley we had went for over $600.00! Dearborn Steel Tube did a run of repops some years ago for the Thunderbolts, etc. but they have dried up. We would entertain doing a run if we could sell at least 50 units at somewhere between $100.00 and $150.00.
This is with the smaller diameter pulley which we have some original, used units. We also have the round case 1G alternator cores. |
I would be in for one of those if you find enough interested and decide to make a batch. |
12-05-2020, 08:09 AM
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CC Member
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Join Date: Apr 2006
Location: Charlottesville,
va
Cobra Make, Engine: Coombe, Shelby Block 496
Posts: 1,187
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Not Ranked
Quote:
Originally Posted by jetblue69
Thanks for the info! I take it that the pulley and fan from that site are not the correct ones?
Hopefully Craig chimes in...
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The alternator pulley on Kevin's car required a bit of work to get everything fitting, I had to squeeze every bit of clearance I could to pull the alternator back towards the engine block.
Both the water pump and crank pulleys need to be spaced accordingly to the alternator pulley.
It all worked out great on Kevin's car with enough clearance on the shock tower etc.
Alloy Hi-Tech Build
Last edited by cobrakiwi; 12-05-2020 at 08:15 AM..
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12-05-2020, 08:53 AM
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CC Member
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Join Date: Jan 2005
Location: Seattle,
Wa
Cobra Make, Engine: ERA 3012
Posts: 141
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Not Ranked
Quote:
Originally Posted by Mongoose930
I do not believe they offer the correct fan/pulley for a cobra. It is almost impossible to find a reproduction, never mind an original...
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Definitely the piece I had the hardest time tracking down for my build.
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