Craziest system on stock ALT!!

[snoopdan 5,000+ posts]

I havent read this thread for about a day, so im just catching up....and I completely concour with audioholic.

All kinds of gay in this thread.

The numbers people are throwing around are silly. There is so much parasitic loss on electrical wiring in these multi battery, multi amp setups that its really silly to talk specifics on what anyone actually puts out consistantly voltage wise.

 

[Ed Lester 10+ year member]

So I guess all the huge systems in dB Drag do not really exist. I guess it is impossible for Bob Perillo or Edge Audo to make 100,000 watts in their vehicles since they do not have 12,000 amp alternators.

I guess having over 100 16v batteries does nothing to make power since all the power comes from the alternators.

If you guys remain that stubborn and stupid, then so be it.

Fact remains that wattage can come from the batteries and the alternator can recharge those batteries. Thats what is happening.

You know how easy it is to charge Edge's batteries since the resting voltage barely drops a tenth after playing?

 

[audioholic 5,000+ posts]

So I guess all the huge systems in dB Drag do not really exist. I guess it is impossible for Bob Perillo or Edge Audo to make 100,000 watts in their vehicles since they do not have 12,000 amp alternators. I guess having over 100 16v batteries does nothing to make power since all the power comes from the alternators.

If you guys remain that stubborn and stupid, then so be it.

Fact remains that wattage can come from the batteries and the alternator can recharge those batteries. Thats what is happening.

You know how easy it is to charge Edge's batteries since the resting voltage barely drops a tenth after playing?

Do you really not get it, or are you just trying to be difficult?
Those db drag guys sporting 100,0000 watts are relying on their bank of batteries to maintain system voltage, batteries that have been charged before the run either by 1) the alt(s), or 2) an external power supply which some competitors use.

Or.... are you suggesting these large db drag systems somehow prove energy in your charging system is created somewhere other than your alternator?

edit: I know Ive been extremely clear that Ive been discussing daily driver systems.... SPL competitors play things a bit differently since they only have to worry about voltage drops over a relatively short period, unlike DD systems. Come on Ed, I know you know better than this.

 

[snoopdan 5,000+ posts]

Even us little guys with 10kw setups have a HO alternator that's just for charging the multiple battery bank up for the 4 second burps. I just charge my bank with a external power supply before I do my run, I really dont even depend or worry about the alternator at all.

Its pretty standard to do this in any competition organization, much less DB Drag.

Im constanly kicking MECA Amature class competitors in the *** for not charging externally before their runs, since they're really dependant on their battery only for their power.

 

[bball09124 10+ year member]

It's just simple math. You have a 120 amp alternator. Multiply 120 amps x 14.4 volts and you get 1728 watts (assuming everything is 100% efficient). The maximum power your alt can provide continuously is ~1700 watts. Now, factor batteries into the mix. All they do is provide storage for the current your alternator produces. Granted, 4 2400's is going to be a lot of storage, but I want to see a vid of your Maxximus playing a sine wave for 2 minutes full tilt and then let me know where your voltage is at.

 

[Pioneer~Saturn 5,000+ posts]

I think we can all agree it is possible to run huge systems on stock alts with a massive battery bank. But unless you turn it way down/off and let the alternator catch up, your batteries will eventually go dead because you simply arent recharging them equal to/more than the draw for the system (daily driver situation).

But like was stated above...in big db drag setups the rules are a bit different because all you need is to maintain voltage for one run and then you can simply plug your car into another power supply and recharge (or run your car until recharged)...

The best bet however is to have atleast one solid high-output alternator, a good bank of batteries, and having as little resistance as possible in the transfer process...

 

[snoopdan 5,000+ posts]

but I want to see a vid of your Maxximus playing a sine wave for 2 minutes full tilt and then let me know where your voltage is at.

or how many FET's pop off the motherboard //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[350zspl 10+ year member]

just was wondering what is the most RMS wattage someone has had or knows of someone that had on a stock alternator??? If they had 1 or 2 upgraded batteries or wiring thats fine, but just a stock alt.... The most I have seen is 3000 watts. It was two rockford 1000bd's and 1 rockford 400.4 and 1 600.4. It was in a Hyundai Tiburon with some upgraded wiring and 1 Kinetik battery. He said he had no electrical issues. It slammed!! what else..............

xxv maxximus 10K on a stock alt

 

[Megalomaniac 5,000+ posts]

Lets all buy Capacitors //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[snoopdan 5,000+ posts]

Lets all buy Capacitors //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

a massive bank of .5 farad audiobahn caps would fit that bill //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Pioneer~Saturn 5,000+ posts]

Lets all buy Capacitors //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Why are we even wasting our money on alts and batts?!...we need capacitors! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif GENIUS

 

[Ed Lester 10+ year member]

I am mainly a dB Dragger and that is the main purpose of my system and I do charge my batts in my shop when my car is parked so they are topped off.

I guess I am mixing this purpose up with daily driving in my explainations.

And I am going to be putting in an alternator because that is the best thing to do.

But I am just trying to make a point that you can get 10,000+ watts by using supplemental batteries and dont need 10,000w/14.4v = 694.44A of alternators to produce that power. You can store thousands of amps in batteries. Can anybody even fit that much of amperage capable alternators under the hood? maybe its possible, but its impractical.

I have not attempted a 2min burp with my amp. Maybe I will play around with it once my new coils are in the subs. The longest full tilt burp attempted was 30 seconds and voltage dropped to 12.00v. I did this just testing a 46hz tone on Bass Race metering and averaged 150.5 dB over the 30 seconds.

 

[x2o 10+ year member]

Yes.

 

[audioholic 5,000+ posts]

I am mainly a dB Dragger and that is the main purpose of my system and I do charge my batts in my shop when my car is parked so they are topped off.I guess I am mixing this purpose up with daily driving in my explainations.

And I am going to be putting in an alternator because that is the best thing to do.

But I am just trying to make a point that you can get 10,000+ watts by using supplemental batteries and dont need 10,000w/14.4v = 694.44A of alternators to produce that power. You can store thousands of amps in batteries. Can anybody even fit that much of amperage capable alternators under the hood? maybe its possible, but its impractical.

I have not attempted a 2min burp with my amp. Maybe I will play around with it once my new coils are in the subs. The longest full tilt burp attempted was 30 seconds and voltage dropped to 12.00v. I did this just testing a 46hz tone on Bass Race metering and averaged 150.5 dB over the 30 seconds.

Nobody has ever suggested you would need a 694 amp alternator. But you need a bigger one than you apparently think. I guarantee your alt is providing more current to your stereo than 30 amps.

 

[Apocalypse boy 10+ year member]

Yes.

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