H/O Alt help

[Loudmp5 10+ year member]

So i have a 03 mazda protege5 my original plan was to put 3 gcons on 3k but i ran into a problem i have been doing research and it looks like i cant get an alt for my car without messing up the ecu? What the fvck do i do im so sadissed: All i have is the stock 80 amp alt so what should i do??? Whats the most power i can get??

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[Loudmp5 10+ year member]

bump

 

[butterMilk 10+ year member]

You should be able to get a HO alt. I dont see why it would be a problem. Email singer alternators, and ask if he makes one for your car, or DC alts, just to find out if they make one. If they make one it will be ok to put one on your car. How did you find out you cant have one?

 

[Loudmp5 10+ year member]

i googled it some mazda forum, i emailed dc and excessive amperage waiting on a reply mechman said they cant help me so we'll see

 

[Loudmp5 10+ year member]

bumpidy doo so if i cant get an amp should i be okay with 2 d3400s one under hood one in the back? and ill run 2k? also now should i get 1 18 or 2 12s lol only like 27 or so cubic inch diff but the 12s would have more motor force??? and ill have my xtant a4004 for my mids

 

[butterMilk 10+ year member]

You should be fine running 2k. Im running about 1600w on stock alt(dont know how big, but no more than 100amps)and yellow top optima under the hood.

For the big 3 all I have done is the battery ground.

I do have a volt meter, just keep an eye on it and dont let the volts dip too low and you will be fine.

For the sub question I dont know. Personal preference I guess.

 

[Loudmp5 10+ year member]

ya i got big 3 i just dont want to stress my alt to much those are kinda big batts i just hate voltage drop if i cant get the h/o alt im either going with saz2k or crossfire1700 idk and im doing the 2 12s **** i already have 1 lol

 

[Loudmp5 10+ year member]

Bump

 

[butterMilk 10+ year member]

Bump for what.

If you have a big *** amp for your subs, and a stock alt, then yeah it will stress it a lil bit, it will cause it to be constantly working hard.

If you drive down the road bumping bass heavy songs for a hour, then yeah it will be stressed.

Your alt will be fine, for a while. Get the system in and see how it holds up.

A decent test for that, is to see if you get head light dimming.

My buddy has been running 1600w on stock everything, in a old dodge neon for a year. No problems, yet. And hes always bumpin hard.

 

[gckless 5,000+ posts]

Bump for what.
If you have a big *** amp for your subs, and a stock alt, then yeah it will stress it a lil bit, it will cause it to be constantly working hard.

If you drive down the road bumping bass heavy songs for a hour, then yeah it will be stressed.

Your alt will be fine, for a while. Get the system in and see how it holds up.

A decent test for that, is to see if you get head light dimming.

My buddy has been running 1600w on stock everything, in a old dodge neon for a year. No problems, yet. And hes always bumpin hard.

Just because I'm interested, what voltages do you typically see?

1600W isn't that much. What amp is that? That may be fine on stock electrical, as your friend has proved. 3kW is a different ballgame. Your alternator will be stressed though may not die, but your amp may, due to low voltage. OP's vehicle almost definitely has a small alternator, and will not provide near the power required for a 3kW amp. Not for a proper daily setup that has the amp set to produce max power anyway. And head light dimming is hardly a decent test. It's a good indicator that you're drawing current yes, but a horrible test.

 

[butterMilk 10+ year member]

Just because I'm interested, what voltages do you typically see?
1600W isn't that much. What amp is that? That may be fine on stock electrical, as your friend has proved. 3kW is a different ballgame. Your alternator will be stressed though may not die, but your amp may, due to low voltage. OP's vehicle almost definitely has a small alternator, and will not provide near the power required for a 3kW amp. Not for a proper daily setup that has the amp set to produce max power anyway. And head light dimming is hardly a decent test. It's a good indicator that you're drawing current yes, but a horrible test.

Not exactly sure what the amp is, its a rockford amp, power series I think. Big square looking amp. Not sure what kind of voltages he's getting, and your right he is probably getting low voltage, so low that it could cause damage. Ive tried helping and he kinda doesn't care.

For the head light dimming, I just meant if the lights are dimming, then there is a problem. I mentioned a volt meter in a previous post and said keep a eye on it.

Did you mean what voltages I see in my car?

 

[gckless 5,000+ posts]

Not exactly sure what the amp is, its a rockford amp, power series I think. Big square looking amp. Not sure what kind of voltages he's getting, and your right he is probably getting low voltage, so low that it could cause damage. Ive tried helping and he kinda doesn't care.
For the head light dimming, I just meant if the lights are dimming, then there is a problem. I mentioned a volt meter in a previous post and said keep a eye on it.

Did you mean what voltages I see in my car?

Yeah, yours and his. You are running a 2k right?

 

[butterMilk 10+ year member]

You should be fine running 2k. Im running about 1600w on stock alt(dont know how big, but no more than 100amps)and yellow top optima under the hood.
For the big 3 all I have done is the battery ground.

I do have a volt meter, just keep an eye on it and dont let the volts dip too low and you will be fine.

For the sub question I dont know. Personal preference I guess.

Im running 1600w (mids and subs), loud music playing the volts are around 14.3-13.5 , when its really cranked it can drop to 13.5-13

Thats pretty good right? or am I all wrong about this?

Opps i just realized he wants to run 3k, not the 2k

 

[gckless 5,000+ posts]

Im running 1600w (mids and subs), loud music playing the volts are around 14.3-13.5 , when its really cranked it can drop to 13.5-13
Thats pretty good right? or am I all wrong about this?

Opps i just realized he wants to run 3k, not the 2k

No, that's not bad. And he wants to run a 3k on top of his front stage amp, not total.

 

[butterMilk 10+ year member]

ah my mistake