Calling B.S. on all these HO alternators

[hornedfrog1985 5,000+ posts]

Well, then I will take your opinion and flush it. It did better than the last doesn't work for most consumers. If I had that attitude I would have started with Geo Metro cars, and went though 15 brands to get to Honda/Toyota.

 

[GLN305 10+ year member]

Batteries actually like a little AC when charging.
I just want to know why if some small time outfit can get 300A from a small package alternator why the big companies that make them for industrial use can't get the same numbers from their products that are physically larger, therefore more room to work with... Maybe it's a duty cycle thing... maybe not. I SHALL talk to Rob about this more and see if he will explain it to me.

I talked to Rob for a good long while before buying my alt, they guy knows his stuff. His main business is doing alts for busses and other city vehicles that have high current demands, I believe. I would like to hear the conversation between you two so that I can learn more about alts and what he does to make them better. Let us know what you find out, it would be a good read.

 

[GLN305 10+ year member]

Well, then I will take your opinion and flush it.

//content.invisioncic.com/y282845/emoticons/thumbsup.gif.3287b36ca96645a13a43aff531f37f02.gif

 

[hornedfrog1985 5,000+ posts]

Just looking at it like a buyer, and not a nut hugger here...

Ever see that sound deadener showdown??? Wonder why SS is known as the best, and people link everyone to that site now.

 

[GLN305 10+ year member]

Just looking at it like a buyer, and not a nut hugger here...
Ever see that sound deadener showdown??? Wonder why SS is known as the best, and people link everyone to that site now.

//content.invisioncic.com/y282845/emoticons/2thumbs.gif.fdc3ba010dbb42b61704534b46d02fe4.gif

 

[smoka 10+ year member]

Batteries actually like a little AC when charging.
I just want to know why if some small time outfit can get 300A from a small package alternator why the big companies that make them for industrial use can't get the same numbers from their products that are physically larger, therefore more room to work with... Maybe it's a duty cycle thing... maybe not. I SHALL talk to Rob about this more and see if he will explain it to me.

I'm not an alt expert. But I work in a manufacturing environment and I think the answer is simple.

Its all about cost/profits. Large 'stock' alts are designed to be easier/cheaper to build and are mass produced. Small HO alts, probably take much longer to build, probably are not built on an assembly line, and likely to use higher quality equipment/materials. That they can make more power in a smaller space does not surprise me.

Anything that is mass produced is driven by reducing costs for the manufacturer. Its the same reason that batteries that come in new cars have a lower plate count than the aftermarket ones that replace it.

Another example would be the Alpine PDX amps. They are practically half the size of some amps but can often put out more power.

 

[MakeshiftAudio 10+ year member]

I'm not an alt expert. But I work in a manufacturing environment and I think the answer is simple.
Its all about cost/profits. Large 'stock' alts are designed to be easier/cheaper to build and are mass produced. Small HO alts, probably take much longer to build, probably are not built on an assembly line, and likely to use higher quality equipment/materials. That they can make more power in a smaller space does not surprise me.

Anything that is mass produced is driven by reducing costs for the manufacturer. Its the same reason that batteries that come in new cars have a lower plate count than the aftermarket ones that replace it.

Another example would be the Alpine PDX amps. They are practically half the size of some amps but can often put out more power.

Oh boy.

 

[GearGuy2001 10+ year member]

Batteries actually like a little AC when charging.
I just want to know why if some small time outfit can get 300A from a small package alternator why the big companies that make them for industrial use can't get the same numbers from their products that are physically larger, therefore more room to work with... Maybe it's a duty cycle thing... maybe not. I SHALL talk to Rob about this more and see if he will explain it to me.

That would be my guess

I'm not an alt expert. But I work in a manufacturing environment and I think the answer is simple.
Its all about cost/profits. Large 'stock' alts are designed to be easier/cheaper to build and are mass produced. Small HO alts, probably take much longer to build, probably are not built on an assembly line, and likely to use higher quality equipment/materials. That they can make more power in a smaller space does not surprise me.

Anything that is mass produced is driven by reducing costs for the manufacturer. Its the same reason that batteries that come in new cars have a lower plate count than the aftermarket ones that replace it.

Another example would be the Alpine PDX amps. They are practically half the size of some amps but can often put out more power.

Thats the thing that Chris (dB-r) doesn't understand, from what Ive read in his posts he is saying these industrial alts are Larger.

And of course mass production reduces costs so you would think there is a higher demand for these large ho industrial alts then in car audio.... therefore making them as cheap or cheaper then a car audio alt.

 

[headlesskoopa 10+ year member]

Yeah, we need something to protect us as consumers. Either that, or I'll just start sellin Wal-Mart batteries with fancy stickers on them. You will all start hanging on my nuts like like an FI sub.
I will call them electric strike force banana nut ****** eat my balls batteries. $200 shipped. pm me for them //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

they sound like amazing batteries . //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif:crazy://content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[dB-r 10+ year member]

That would be my guess

Thats the thing that Chris (dB-r) doesn't understand, from what Ive read in his posts he is saying these industrial alts are Larger.

And of course mass production reduces costs so you would think there is a higher demand for these large ho industrial alts then in car audio.... therefore making them as cheap or cheaper then a car audio alt.

Thank you. Oh Boy was my response to his post when I read it too..

Large industrial HO alternators are NOT cheap and MUCH larger than these homebrew HO automobile alternators, which cost alot less than a new stock Leece Neville or Lexidyne.

If Robs works on alternators for Busses he will know exactly why I am questioning those small HO alt because he has to deal with those heavy *** Leece Neville and Lexidyne alternators, they use them on busses and big rigs and RR trains.

More on this later, gonna put some research together, present my case to Rob and hope I get a good response. I just want to settle this because in many cases I know these so called HO alts that are in the stock cases even after rewinding are not going to produce some of the numbers that some of these guys are claiming, and especially not the idle #'s....

 

[audioatg 10+ year member]

Dont bite my head off here. But what was the vehicle's RPM in the video. Just asking is all.

 

[snoopdan 5,000+ posts]

Dont bite my head off here. But what was the vehicle's RPM in the video. Just asking is all.

x2 that video is meaningless to me since they didn't bother to have a tachometer alongside the ammeter and volt meter. Actually, it's pretty stupid they didn't do that since that's the referencing factor in the test //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[dB-r 10+ year member]

Hello Dan. What's your opinion on these things? Ever done some testing of your own or been present when it was done? Ever seen a dual stator Leece Neville? If so you can probably imagine why I question the small ones....

 

[dB-r 10+ year member]

For reference about the industrial alternators (just some of them) go here and read/look at the pictures:

http://www.elreg.com/files/SCHOOL%20BUS.pdf

The larger alternators are in different catalogs and are 24V/500A etc. Not applicable to car audio in anyway, but the ones above are for 12V systems. I wonder can you convert or rewire/re-regulate one of those 500+A 24V alts for only 12-20 volts....? That would be awesome but the alternator has more displacement than some of you guys engines do...

 

[dB-r 10+ year member]

Also reference this video to see some of these (like 5 of them) under 1 suburbans hood on a big block chevrolet (454):

http://www.bigradios.com/2005/video/1998/mt-3.JPG