H.O. alternators?

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shaggy_one469

Member - Posts: 27

Joined: November 16, 2005

Location: United States

Posted: December 01, 2005 at 8:17 PM / IP Logged

is it ok to run a HO alternator that puts out a lot more amps than you need? i am currently running an MTX 81000d pushing 2 audiobahn 12's in a factory bandpass box. i drive a 92 rodeo and i believe the stock alternator only puts out 100 amps. the amp requires a 150 or 160 amp fuse so i assume my alternator must put out at least that much. as it is now, when the bass hits, the display on my HU dims almost to the point of being completely out. i know i need an HO alternator but will it be ok to run one that is more than whats needed? i am planning on upgrading my subs and adding another matching amp so i will need an alt. that will not only support one of these amps but two plus a small amp for the mids and highs. any help would be appreciated.

shaggy_one469

Member - Posts: 27

Joined: November 16, 2005

Location: United States

Posted: December 01, 2005 at 8:21 PM / IP Logged

i meant to mention that the dimming that goes on is with the gain at about half.

geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: December 01, 2005 at 9:18 PM / IP Logged

Absolutely. There's nothing wrong with running an alternator capable of more power than needed. Do us a favor and don't play it so hard until you do the upgrade. Also do a search on the big 3 and setting gain controls.

My ex once told me I have a perfect face for radio.

dwarren

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Joined: December 03, 2004

Location: California, United States

Posted: December 01, 2005 at 9:45 PM / IP Logged

Another benefit of having a larger alternator is future upgrades. You may find your self looking for a four channel amp or other accessories.

Not to mention that if it all possible, avoid getting an alternator that just cuts the power requirements. Getting a larger alternator will prolong the life of the alternator by causing it less stress. It's like haivng a more powerful amp that enables more headroom.

shaggy_one469

Member - Posts: 27

Joined: November 16, 2005

Location: United States

Posted: December 01, 2005 at 9:52 PM / IP Logged

ok so if i am understanding correctly, a 200 amp alt. is capable of putting out 200 amps but only does so when needed?

dwarren

Platinum - Nominee - Posts: 1,811

Joined: December 03, 2004

Location: California, United States

Posted: December 01, 2005 at 10:02 PM / IP Logged

shaggy_one469 wrote:

ok so if i am understanding correctly, a 200 amp alt. is capable of putting out 200 amps but only does so when needed?

Basically. When the demand is up, the alternator is up to the task.

audiobhan101

Copper - Posts: 59

Joined: October 30, 2005

Location: Canada

Posted: December 01, 2005 at 10:29 PM / IP Logged

Anybody have a place for cheap HO alternators. I realise that they dont come "cheap" but lets just say "cheaper" than usual. I got a jegs Chrome one that decided to burn up under the strain of my orion amp. They gave me my money back and said buy a bigger one. just so happens the bigger one is about $250 which is a little pricy

84 Mazda Rx7 GS

4 15" Audiobahn High Excursion

1 2500W Orion Amp

Custom Box

Paradigm

Silver - Posts: 284

Joined: November 25, 2003

Location: United States

Posted: December 02, 2005 at 8:33 AM / IP Logged

audiobhan101 wrote:

That's actually pretty good pricewise. May be out of your budget, but for something really good that will be up to the task, you'd be hard pressed to find something less than $300.

VEHICLE: 2002 GMC Sonoma ZR2

Alpine CDA-7940

AudioControl EQT x2

JL Audio 1000/1

JL Audio 10W6 (originals) x3

Kicker ZR120

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Polk GXR-4 x2

ragoal12

Copper - Posts: 135

Joined: July 23, 2005

Location: United States

Posted: December 02, 2005 at 12:32 PM / IP Logged

if ur looking for a cheap HO alt try searching for an IRAGGI ALT on ebay.. he has a whole store online and they r about the cheapest and alot of guys on this forum run them... but if u looking for something under 250 good luck...

S.O.B custsoms.. South Omaha, Nebraska

audiobhan101

Copper - Posts: 59

Joined: October 30, 2005

Location: Canada

Posted: December 02, 2005 at 12:46 PM / IP Logged

Ya and its really really hard to find any thing for an 84 RX7. I have seen Iraggi Alts but I dont think he has any thing for an RX7. I need to find out what else will fit my car and go from there. Most mazda alts are the same but better to be safe than sorry.

84 Mazda Rx7 GS

4 15" Audiobahn High Excursion

1 2500W Orion Amp

Custom Box

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