Calling B.S. on all these HO alternators

[dB-r 10+ year member]

See this thread: http://www.caraudio.com/forum/showthread.php?t=426271

But come back here and post because this belongs in this section not the other.

I am not claiming to be smartest person on earth or know everything about alternators but since I am here a lot and try to help people out with their amplifier current supply woes, someone who is authoritative on this topic please help me understand why I shouldn't call BS on all these alternators out there that people are beefing up and claiming outrageous amounts of current from them when they are half the size of the alternators that I know of that actually WILL produce those kind of numbers, such as double stator 250 amp leece nevilles, and lexidynes etc... How can you get those numbers out of a CS alt or a GM large case HO alt and still be able to sell them for under $1000. I just don't get it and I call BS on all these claims, especially the claims like 175 amps at idle... LOL... prove it.

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[bubbagumper6 5,000+ posts]

Don't reference my thread, that's just going to lead to more junk posts over there, if you've got anything you want people to read, just copy/paste it in here.

 

[SWFL 10+ year member]

http://www.caraudio.com/forum/showthread.php?t=416569

 

[SWFL 10+ year member]

This is what rob said about my alt for my 2001 F-150 5.4l

Your alt only ran 242-243, but it did 178@2500 RPM's.. With the pulley that's on it, you'll get 170 at idle no problem hot... That particular stator doesn't put up 250+ numbers, but they rip, it, up on the bottom.. Voltage range on the external regs we are building will actually range from 12-22v the way the boards are now... Pretty good range yeah??

 

[grimreper912003 5,000+ posts]

I dont believe it either personaly. Mechman did a pretty good job explainging this over on CACO. He said that alot of cheaper companies reuse the cases, and also reuse some factory guts IIRC. Somehow they get Dyno results though.

 

[grimreper912003 5,000+ posts]

Don't reference my thread, that's just going to lead to more junk posts over there, if you've got anything you want people to read, just copy/paste it in here.

Quit Crying. Referancing a thread isnt a problem. Now if someone post in there to start shit, thats on them.

 

[power-fanatic07 5,000+ posts]

 

[grimreper912003 5,000+ posts]

Awesome Vid //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[ciaonzo 5,000+ posts]

Impressive.

That's actually the exact one I need.

 

[clouduz 10+ year member]

the thing i don't like about "idle" claims is i wouldn't have brought my mechman or any ho alt if i knew they rated them at 800 rpms. my car idles at 600 and my stock gives about 30 more amps than my mechman at idle. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif Annoying haveing to hold the gas just to listen to music at a decent volume at stop.

 

[SWFL 10+ year member]

smaller pulley?

 

[bones22 5,000+ posts]

the thing i don't like about "idle" claims is i wouldn't have brought my mechman or any ho alt if i knew they rated them at 800 rpms. my car idles at 600 and my stock gives about 30 more amps than my mechman at idle. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif Annoying haveing to hold the gas just to listen to music at a decent volume at stop.

your car idles lower than most do then

 

[power-fanatic07 5,000+ posts]

what i don't get is why does it drop down so low when the system isn't even playing.

no current drawn so none produced?

 

[clouduz 10+ year member]

smaller pulley?

nope, they use the EXACT same size

 

[bones22 5,000+ posts]

nope, they use the EXACT same size

even a fraction more or less in diameter will make a difference