ho alternator companies

I have a 93 Honda Civic SI - 1.6 L and I am looking for a 200-300 amp alternator - higher the better.

Problem is that I have been trying to contact High output alternator . com and they are extremely bad with customer response.  I am still going to try contacting them through their local number however I need the alternator as fast as possible and wanted to know other reputable companies to look into if I cant get one through this other company.

Well this would be sort of critical huh?

Does ur Irragi do that?  If not, what, precisely, is the voltage at idle?  Does it rise *at all* when RPM increases?

It's not the voltage you need to worry about droping, that should be stable through the entire rpm range.  The alternators current capacity will raise as the alternators speed rises though.  If your voltage drops at idle it shouldn't go below about 13 volts, but that will vary slightly with some cars.  I'm using an external regulator instead of the PCM to control my voltage, which stays at a rock steady 14.2 volts.

Hmm.

Okay - it SHOULD be stable throughout the RPM range - but this isn't often the case with rewound or bolt-on aftermarket HO alternators.  The key is sort of the topic of the thread - which companies offer competent build quality.

The point is - in general, rewound alternators do NOT produce full voltage at idle - certainly nothing approaching 13v - most "HO" alts I've seen hover around 10.5v ~11v @ idle - this is highly, highly problematic.

Could you describe this process in detail please?  PCM?  How would the OP go about doing this?

Wow, 11 volts...  I had no idea they were that bad.  An external regulator isn't going to help that at all, you'll need a smaller alternator pulley to spin the alternator faster to help that.

I use an external regulator because the PCM (powertrain control modual) liked to screw with the voltage.  It would have it anywhere from 13 volts to 15 volts, depending on the weather conditions and temperature of the battery. 

To install an external voltage regulator you need a regulator ( http://www.rockauto.com/catalog/x,carcode,1066676,parttype,4884) and a plug for it ( http://www.rockauto.com/catalog/x,carcode,1066676,parttype,2644) .  The wiring is pretty simple, you'll need to locate the small gauge switched 12 volt wire going to the alternator by using a voltmeter.  With the cars engine shut off and the key in the on position look for 12 volts on one wire.  Tap into this wire and splice that into the middle pin on the regulator plug.  Cut the other small gauge wire to the alternator and splice that into the other wire on the regulator.  Then mount the regulator to the chassie of the car as the body of the regulator is its ground. 

The first rewound/rebuilt HO alt I purchased hovered around ~10.5 @ idle - this created SO many problems - the idle voltage was so low that *everytime* you accelerated the head lights would very noticably brighten....it was terrible.

And then belt tension becomes a critical issue - how easy is this to deal with?

Wow - interesting info - Now you can do this any car?  Not just a 70's Chrysler? 

Wouldn't the alternator have a voltage regulator on it already?  And this is supposed to control the voltage coming off the alt at idle when the voltage otherwise wouldn't be up to snuff?