high output alternator for supercharged cooling

[72Charger440]

I figured this might be a good place to get an answer.
Thank you in advance.
I have a 72 charger running dual electric fans,lots of MSD and holley blue electric pump.
I need more amps than the 70 amp alternator that I have.
can I wire in a 1 wire alternator without problems?
If so is voltage regulation handled inside alternator?
I am looking for about 120 amps or so.
I have a supercharged 440 engine that needs to be coooooooooooool so any help would be appreciated!
Thanks,Larry

[hedgehog]

yes you can and it is internally regulated

[ehostler]

I didn't look closely at the picture, but remember, with a high output alternator, you will need a larger charging wire coming off of the alternator. Odds are, you have a trunk mopunt battery with a 1/0 G wire going from the ALT tot the battery/ignition cutoff.

[Locke]

A few years ago I had the same issue, needing more amperage but it was for my boat. I took the marine alternator to a shop that works on them and they changed the internals to produce 125 amps. They recommended the correct size wiring and I don't think the whole thing cost much. If they can do it for a marine application I'm sure you can find someone to do it for a car.

Locke

[451Mopar]

I am putting the 130 Amp Denso alternator on my Charger. If you do a search you can find out more information on the conversion, but it is externally regulated.

[ehostler]

The problem with getting the alt modified is that if it fails, you have to wait while yours is rebuilt. The GM 1 wire unit is a quick swap with most any parts house. An alternative to the GM 1 wire is the newer ND MOPAR alternators that are on the Dodge Rams and in the Jeeps. They will use the exisiting voltage regulator and produce the 120 - 140 AMP power range.

[451Mopar]

The 130 Amp Denso is the new Dodge truck alternator. I got if off E-Bay from a place that does Conversion vehicles. It was $75.
The main reason I wanted the ND alternator is it is rated for 14,000 RPM at the alternator which works out pretty good when you have an engine that will turn 7,000+ RPM

[ehostler]

Yes, I also got the new 130 Amp unit from ebay. It's been sitting on my garage floor for the last 5 months... lol

I also bought a rebuilt 100 Amp unit for a Jeep, on Ebay. It was like $30. The 100 Amp will be easier for me to wire in, as it still uses the standard terminal lugs for the field wires.

Now, I just have to decide which to use and which to have as a spare...