Alternators
Thread Starter
Intermediate
Joined: Jul 2010
Posts: 49
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From: Laguna Hill ca
Alternators
I have a 1963 FI with a 37 amp alternator that only has to run an engine, radio and MSD 6. At the end of 1963 when A/c came out, they offered a 55 amp I believe. Since I might have to rebuild, is it to my benefit to upgrade to a 55 Amp or am I just wasting my money. Also if I upgrade, will I have to add larger wire from the Alternator and would I have to change out the regulator to hangle the additional amps..............thanks......
Le Mans Master
Joined: Mar 2005
Posts: 7,631
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From: Rocklin California
I have a 1963 FI with a 37 amp alternator that only has to run an engine, radio and MSD 6. At the end of 1963 when A/c came out, they offered a 55 amp I believe. Since I might have to rebuild, is it to my benefit to upgrade to a 55 Amp or am I just wasting my money. Also if I upgrade, will I have to add larger wire from the Alternator and would I have to change out the regulator to hangle the additional amps..............thanks......
Drifting
Joined: Jan 2001
Posts: 1,879
Likes: 21
From: Bradenton Florida
I was just wondering the same thing. Thinking of swapping my 37 amp to a 60 amp in my 67 base motor coupe. At night when at idle the lights dim and the directional signals slow down. Will this help, and is it just a simple alternator swap and nothing else?Charlie
Thread Starter
Intermediate
Joined: Jul 2010
Posts: 49
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From: Laguna Hill ca
S-10 models will do it but then they are have internal regulators...
Le Mans Master
Joined: Apr 2000
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From: New York New York
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The only thing that changes to up the amp output is the stator and rotor.
Most rebuilders today don't even bother with the low amp stators and rotors they just use the higher amp parts in all the units.
If you are still using an external regulator just switch the rotor and stator and it will be undetectable.
You can purchase any 55-65 amp unit and just put the parts into your unit. I believe the Lester number is 7122. Have the store bench check the new/rebuilt unit before you purchase it.
Joe
Most rebuilders today don't even bother with the low amp stators and rotors they just use the higher amp parts in all the units.
If you are still using an external regulator just switch the rotor and stator and it will be undetectable.
You can purchase any 55-65 amp unit and just put the parts into your unit. I believe the Lester number is 7122. Have the store bench check the new/rebuilt unit before you purchase it.
Joe
