Camaro Forums - Chevy Camaro Enthusiast Forum

Camaro Forums - Chevy Camaro Enthusiast Forum (https://camaroforums.com/forum/)

- 67-69 General (https://camaroforums.com/forum/67-69-general-43/)

- - 1967 Camaro Alternator help (https://camaroforums.com/forum/67-69-general-43/1967-camaro-alternator-help-52239/)

1967 Camaro Alternator help

I'm rebuilding a 67 Camaro Has original 327 Bored .060 Over 4spd 3:73 Gear's
Comp. 10.2-1 and Elect Fan MSD Ign
Car has been completly rewired with Autowire's kit.

Need some suggetion's on which Alt would be the best and whether a 1 wire or a 3 wire and Amp's Needed. Thanks Again Guy's.

I'd go with the GM 1 wire, 100 a. alternator.

Depends on how stock you want to keep the car and how many accessories you plan to run.
'67 didn't have the 1 wire so if you want OEM stock it's out.
You shouldn't need a high output alt. unless maybe you plan on a lot of high end stereo and lights and what not.

Quote:

Originally Posted by 1971BB427 (Post 428834)

I'd go with the GM 1 wire, 100 a. alternator.

Unless it's a 100 point resto that should do the trick nicely.

A 100 amp one wire is what I put in mine, after the original external voltage regulator crapped out. Some people don't like the one wire saying it doesn't charge the battery correctly.
But, it works fine for me, and was a lot easier to install.

The one wire is the way to go. One of the important things to remember with a one wire is, in order for it to start charging, the alternator must reach a specified rpm to initiate the internal voltage regulator charging process. The voltage regulator controls alternator output, using residual magnetism in the alternators rotor fields to determine when to turn the alternator on or off. The regulator does this by sensing the RPM the alternator is turning, when it gets to a certain rpm the voltage regulator "turns on". So when you start the vehicle you'll have to rev the motor a bit to get the alternator to start charging. Otherwise a standard alternator needs ignition current to work.

That's correct, the one wire turns on at around 2,000 rpm's and once it starts charging it will then charge at idle too. Just don't start it up and let it idle for hours without one rev over 2,000 rpm's.

No doubt a 1 wire is sweet, I'd also dump that oem-styled bracket. Their flimsy and flex too much when you mash the gas which causes needless belt wear. There are several out there that are better like March or Zoops....I have a Zoops.

Quote:

Originally Posted by Camaro 69 (Post 428862)

I too am putting a 100 amp 1 wire alt (Powermaster) in my RS. Trouble is, I hear you need to disable the old external voltage regulator by unplugging the wiring harness to it. That seems easy enough except...

I cannot for the life of me tell which canister is the voltage regulator. :icon_no:Wiring diagrams say I should have an orange, blue, white and brown wire coming from it, but nothing in my engine wiring looks like that. I've posted some pics. There is a cluster of 3 Delco-Remy canisters on a mounting plate that is in turn mounted under the driver side fender just rear of the radiator support. These all look identical (no markings/etc.). Is this some massive early voltage regulator or a multi-function beast I've never heard of before? I assume one of them might be the headlight door relay, but don't know for sure.

The last pic I posted is of the canister I *think* might be the regulator (since it has the orange power wire from the fused + link).