Jump to content

Which voltage regulator with a 60 amp alternator


Recommended Posts

I have several different voltage regulators and I was wondering which one is supposed to work with the 60 amp alternator. I can post pictures of everything if needed. Thanks ahead of time.

Edit. Maybe its a 50 amp alternator but it has the FN plugs so it is definitely externally regulated. 

Link to comment
  • Replies 8
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Well just start with telling us just which vehicle and year you are trying to get going!  Just which 69 Amp alternator might also make a difference!  To misquote Yoda "Mind readers we are not!"  If you want meaningful help, we can do it.  Just meat us with a meaningful question.

Link to comment

I don't think there are any differences with the old mechanical VRs, maybe just the shape of the plug. The VR simply senses the voltage on the positive battery terminal and varies the amount of current going to the electro-magnets on the armature. This increases or decreases the magnetism spinning past the stator coils which varies the output of the alternator. The VR does not handle the output current at all just varies the magnetism that generates it.


If you have a 35 amp alternator and swap in a 60 amp, you shouldn't have to change anything.

Link to comment

I ran a 60 amp alternator on a stock 521, with the stock voltage regulator.

Alternators generally limit their own current.  Generators did not.  Generator regulators had to be matched to the current output of the generator.


I would suggest staying with a Datsun (Nissan) alternator, with a Datsun regulator.  Every car manufacturer wires the charging circuit with slight differences, and uses different points in the electrical system to measure, and regulate the voltage. 


If you check the charging voltage, just after starting the car, the voltage will read a little higher than what would seem normal.  Datsun voltage regulators are also temperature compensated, and charge to a slightly higher voltage when it is cold.

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.