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Edicius

Copper - Posts: 90

Joined: March 11, 2003

Location: Georgia, United States

Posted: March 16, 2003 at 1:09 AM / IP Logged

Is there anything that I need to know about my car to buy a more powerful alternator.

dragonrage

Copper - Posts: 193

Joined: March 15, 2003

Location: United States

Posted: March 16, 2003 at 7:04 AM / IP Logged

Just make, model and year...Knowing what it looks like would be a good idea too, just so you can make sure the new one looks the same (but never go just by looks)

2009 Pontiac G8 in planning stage

HU: ?

Speakers: ?

Amps: ?

bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: March 16, 2003 at 9:28 AM / IP Logged

If you’re going to upgrade it than try and get the largest one you can. It can’t hurt to have too much power. You should be able to find a 200 amp with out a problem. Here are some links to sites http://www.wranglernw.com http://www.mralternator.com or call C.S.A. nathanpeddicord@yahoo.com or call at 1-334-712-9955 they do lots of alternators for comp cars

Edicius

Copper - Posts: 90

Joined: March 11, 2003

Location: Georgia, United States

Posted: March 16, 2003 at 6:22 PM / IP Logged

In the article that you e-mailed me, it said...

-- "Here's a simple formula: divide the RMS power rating of the amplifier (in this case, 300 watts) by the amount of voltage your car's electrical system will produce. Most cars have a standard 12-volt system that actually cranks out about 13.8 volts with the motor running. So, 300 watts divided by 13.8 volts equals 21.7 amperes of current. Your car's electrical system will need to produce an additional 21 amperes (the term for measuring electrical current) of electrical current to power the amplifier and subwoofer at a reasonable performance level."

If I am calculating this for a multi-channel amp, do I add the rms power rating of all of the channels together and then divide it?

bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: March 16, 2003 at 6:33 PM / IP Logged

Yes add the total rms output of the entire amp then do the division. That tells you how many amps that amp will be using. If you have more than one amp add up all the wattage and then divide. So if you have a 500 watt rms amp and a 300 watt rms amp you would add 500+300 =800 then divide by 13.8.

Edicius

Copper - Posts: 90

Joined: March 11, 2003

Location: Georgia, United States

Posted: March 16, 2003 at 6:42 PM / IP Logged

I know that was a dumb question...Thats what I thought but, I just wanted to be sure.

bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: March 16, 2003 at 6:46 PM / IP Logged

there is no dumb question !

Edicius

Copper - Posts: 90

Joined: March 11, 2003

Location: Georgia, United States

Posted: March 16, 2003 at 7:13 PM / IP Logged

Thanks...The way I calculated it, It came out to (282.608695652173913043478260869565) Thats for the Audiobahn A2300HCQ and the Audiobahn A4125HCQ....so I will need to get a 300 amp alternator or should I get a larger one? Where do I get these installed? Why does it matter if it looks the same?

If I buy a capacitor will that add to the amount of power I consume?

What about other add-ons(neon, videogame systems, video monitors, etc.)?

bberman1

Gold - Posts: 2,314

Joined: March 11, 2002

Location: United States

Posted: March 16, 2003 at 7:46 PM / IP Logged

I calculate 231.884 that’s 1000 ( A4125HCQ0 + 2200 (A2300HCQ- that's 3200/13.8 = 231.884 Now that figure is calculated with you running the A4125HCQ at 2 channels @ 1 ohm. you will actually only be using 125 X4 @ 4 ohms so that's 500 watts + 2200 =2700/13.8 = 195amps at full volume. Now you will be fine with a 200 amp alternator but if you can find one larger go for it.

Edicius

Copper - Posts: 90

Joined: March 11, 2003

Location: Georgia, United States

Posted: March 16, 2003 at 8:52 PM / IP Logged

The A2300HCQ is 1200 x 2 that's 2400.

The A4125HCQ is 375 x 4 that's 1500.

2400 + 1500 = 3900.

3900 / 13.8 = 282.608695652173913043478260869565

http://www.audiobahninc.com/products/results.asp?categoryID=9&seriesID=21#

If I buy a capacitor will that add to the amount of power I consume?

What about other add-ons(neon, videogame systems, video monitors, etc.)?

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