01-05-2010, 06:32 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Quote:
Originally Posted by dlotz
Does it matter what amp the alternator is or do the two (VR and ALT) need to be matched? I have received conflicting info. I have a 100 amp ALT and what appears to be the VR that was used for the 55amp alternators.
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Yes, it matters. Voltage Regulators are limited by current just like any other electronic component is. That VR that I posted the pic on is solid state and will handle the 100amp Ford 1G Large Case alternator. There are Ford Voltage Regulators that are rated at a lower amp value than that, and maybe you have one -- I don't know. You can also buy a voltage regulator that will handle 200 amps, for about $25 bucks more. If you don't know the amp rating of your existing VR, I'd spring for the $26 piece that you know is rated for 100amps.  |
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