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04-05-2010, 10:05 PM
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CC Member
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Join Date: Mar 2008
Location: Mountain View,
ca
Cobra Make, Engine: SPF2914 Sunset / Titanium
Posts: 233
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Not Ranked
One wire alternator? really not the same!!
Okay, I know all of the typical Q & A that goes on regarding this subject as I have been involved as well. My question is this. I want to retain the red light by tapping into the blue wire, but have read that this will not work with an ampmeter. I have yet to figure out why or what function is lost. Is this true, and if so, does anyone know what the issue is? Please advise.
Andrei
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04-06-2010, 02:59 AM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
Large SI cased GM alternators actually have three terminals.
A> BAT+ for your Solenoid BAT+ Lug on the firewall.
B> Dual Terminal Side Connector ; look for the #1 connector this is stamped with a #1 on the case, this terminal is used to connect to the dash warning light,
--which is wired in series with a 12V+ IGN on only signal . in case of issue, the #1 terminal will *THEN* act as a ground wire, thereby illuminating the waring lamp.
give it a try.
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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04-06-2010, 09:56 AM
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CC Member
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Join Date: Mar 2008
Location: Mountain View,
ca
Cobra Make, Engine: SPF2914 Sunset / Titanium
Posts: 233
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Not Ranked
Steve,
I have tried that and it works. My question is, that I have read that you should only do this with a volt meter and never an amp meter, and I have not yet been able to figure out why or if this is even correct.
Andrei
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04-06-2010, 02:24 PM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,404
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Not Ranked
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, Cinema Tribute Cars $ GT40’s..
Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
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04-06-2010, 02:52 PM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
The thing is , you could use the 95A Gen 3 Motorcraft and be ford-o-riffic at the same time.
Andrei -- one should not be using an AMP gauge that is UNDER the rating of the ALT.
in the case of the SPF, the AMP rating is 50/+/- -- whereas the 10SI 1 wire is atleast 90A.
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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