What about Comp Cams, isn't Cloyes noisy?

Cool, maybe I should look for a Motorola if I can fine them around or if they are still in production. No my engine isn't covered. I keep it in an enclosed storage when not in use.

Where at in Texas, I'm from Texas?

If you are going to run a big amp alternator on two batteries, I totally recommend a battery isolator AND a switch.

One wire alternators larger than a 63 amp are a little silly.... The 10SI was built to amperage's up to 63 amps and is plenty big enough for the average boat. To understand this, you have to know what they are doing with the internal regulator. It is "self excited" meaning the field for the alternator is being energized internally. All it really means is that the regulator is permanently powered from the charge lead.

The way they did it in the '70's is brilliant. They ran a resisted circuit (using a light bulb as a resistor) from the dash of the vehicle to energize the regulator, this voltage was much lower than the output of the alternator and would run the alternator harder to bump the volts.

I thought I said it already on here, but my post didn't stick for some reason. Optima batteries do not like to be "cooked" back to a full charge.


GT

GT Jets,

I have a battery isolator switch, which gives me the option of "both, 1, 2, or OFF". From your reply, I'm assuming Optima batteries won't do me any good, if I keep them charged to 100%

Like crew chief said it really depends on your plans but a alternator will only produce as much as needed so technically you can never have to big of a alternator but you can definitely have a alternator that doesn't put out enough. So it really depends on how much you wanna spend vs what you really need.

But if you are not afraid of a little electrical work and research a early to mid 90's caprice alternator may be your best bet. Just google "caprice alternator swap" and dig through a few forums. The caprice alternators are roughly a 140 amp alternator and are considerably cheaper than going out and buying a labeled "high output" alternator.


Edit: after a quick look it seems 90-93 alternators are a 120 amps and run around 100 bucks and 94/95 are 140 amps for around 140amps

Sent from my iPhone using SoCalJetBoats

SoCalPSD,
I will look into it. I think I'm going to a 80-100amp the price is $100-140 new. One question though, on those years caprice classics, is it a 1-wire, V-Belt alternator?

I'm doing some work to my engine that's in my Hallett, and I going to order a new alternator. My question is what amp alternator should I be looking at? I have a 454 BBC, 1-wire alternator, with 2 batteries, 4 Kicker 8" speakers and 600 watt 4 channel Fosgate amp, with auxiliary cable that is ran to my iPod. With that being said, should I go with a 80amps or 100amps alternator or bigger?

FORDOUTLAW is supposed to ge tthem tomorrow. If something falls through ill let you know

Okay, cool, let me know.

PM Sent

Gauging interest, where you located? I'm in Houston, TX.

Is it for a single or dual carb? Does it have the tray?

thanks, package received. 

I wanted a Sanger, but ended up getting a Hallet Mini Day. Next one I'll get is a pickle fork style or a Sanger like yours