High output alternator

The Power bastards unit is a small case unit, and has very limited cooling, and stock style rectifier with small diodes. It will have very weak output at actual idle speed, and will fail in short order. How they can say they are made in the USA, is beyond me, because I have piles of them here, and they appear to be exactly the same as the "high output" alternators we can order complete from China for less than $100.
If you are looking for a bargain, we have 250 amp, 6 phase units on sale for $349. They make increadible output at idle, even as low as 500 engine RPM. By 800 RPM, they make about 200 amps. This is because they are (1) a larger housing, and (2) utilize 6 phase technology. This also makes them more efficient, and less prone to belt slip, which is an issue on V8 Fords of that Era due to the limited belt wrap on the alternator. Also, out units have a finely finned heat sink on the back, and 16 diodes (PB unit only has 6) to handle the power and heat for 100,000+ miles.

Sometimes out units are more expensive than others because the components cost more, but in this case it is a no brainer. If you want to get one on the way, just shoot me an e-mail, I have them in stock. I also have even larger units available, but belt slip can be an issue if you go over 250 amp on that motor.

mlogan@mechman.com

So there is no way around belt slip with an alt over 250amps? I have your number and will be giving you a call soon. But now if the belt slipping is going to be an issue then I have to figure out a way around it. I don't want to get a alt at 250 and find out later on down the line that I need more. The will be running a us amp 400 and probably a ppi a400.2 going to the subs and components. I will also be running 2 xs batteries total. This might be overkill on my part but this is my first real build and I want to make sure that I have enough juice if I want to go with more power. Will that 250 alt be enough or will i need to go bigger?

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I just installed my DC Power 270XP yesterday, and though I can't tell you what kind of amperage it's throwing out, I can tell you it rests at 14.8V, and build quality is fantastic. I have not noticed belt slip, and I am not getting a battery light on my dash. The price was tough to swallow though.

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