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Old 11-10-2005, 05:39 PM
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one or three wire

After I put the brake power booster master cylinder on my 57 chevy I don't have room for the generator. So I will be switching to a alternator. which one should i use 1 or 3 wire. I don't have to use the idoit light.

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Old 11-10-2005, 06:04 PM
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Quote:
Originally Posted by Toms57
After I put the brake power booster master cylinder on my 57 chevy I don't have room for the generator. So I will be switching to a alternator. which one should i use 1 or 3 wire. I don't have to use the idoit light.

Doc here,

If you don't have an idiot lamp, 1 wire is simple and quick to do...

Just mount it, and run one 10 gauge wire with a proper fuse link to the starter solenoid Battery terminal and add it there..your done..

Monitoring will have to be a Voltage gauge if you desire one, OR more expensive, an inductive Amp gauge.

3 wire is a bit more involved, Main power, Switched power, and lamp/fuse wire..plus can be more if externally regulated.

Either will serve the purpose 1 wire is quick and simple...

Doc
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Old 11-13-2005, 05:10 PM
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Doc -- What's your take on Mad Electrical's comparison between 1-wire and 3-wire alternator's?
Read it Here

There sure is a whole lot of controversy about this issue!

Alan Horvath
54 Chevy Pickup
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Old 11-13-2005, 07:11 PM
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Thats a very good READ Allen, thanks for sharing that with us. Everything the guy says makes perfect sense. I have however used many one wire alternators on street rods and other cars without any of the problems he mentions.
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Old 11-14-2005, 03:02 PM
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Quote:
Originally Posted by horvath
Doc -- What's your take on Mad Electrical's comparison between 1-wire and 3-wire alternator's?
Read it Here

There sure is a whole lot of controversy about this issue!

Alan Horvath
54 Chevy Pickup

Doc here,

I read that article several months ago...and while it's true they don't sell alternators, They do sell Harness kits for each...

At any rate..It's like anything else..Ford is better than Chevy, Dodge is better than Ford..and It all may be true for each individual's application.

I advocate the use of a 1 wire system, usually where space is an Issue, and Skill level is indicated for install, and the need for lights, buzzers and bells is not an Issue..

This usually works well for Street rods where Wire Count is important, and a "Clean Engine Compartment" is a must..As long as They know what the drawbacks are, It's usually not a problem.

If the Vehicle is a DD, and more or less stock, Then there is no reason not to go 3 wire, and a full monitoring system..

One of the arguments , (IMO, that doesn't hold water,) is if you pop a belt , on a 3 wire system the Idiot light (If so equipped) will flash on,drawing your attention to the gauge..If this is so, then your not doing a Panel scan anyway, and probably not reading your oil, and temp gauges as well as amp / or Volt gauge. It's like Slowing down AFTER you see the patrol car..

I personally see no problem with either system..Provided it is used in a proper application. And the user is aware of monitoring status..both have their places in a street rod.

Just my thoughts..

Doc
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