80 amp alt, how much power can I run?

[7ender 10+ year member]

Normally i'd search around for this (and I did...a little ) but I need quick help.

I found a used bxi2006d on craigslist for cheap. My car only has an 80 amp alt though (02 accord), what else would I need to be at the bare minimum to run this amp?

Iv'e currently only done the big 3. I'm running 900 watts and have no dimming whatsoever, but I know I can't push a bxi2006 (probably 1600 watts + 300 already going to my fronts).

Anyone have an idea? Don't need the exact amp to watts calculations, just a rough estimate is fine.

Thanks!

Click to read more...

 

[Mass Car Audio 10+ year member]

Normally i'd search around for this (and I did...a little ) but I need quick help.
I found a used bxi2006d on craigslist for cheap. My car only has an 80 amp alt though (02 accord), what else would I need to be at the bare minimum to run this amp?

Iv'e currently only done the big 3. I'm running 900 watts and have no dimming whatsoever, but I know I can't push a bxi2006 (probably 1600 watts + 300 already going to my fronts).

Anyone have an idea? Don't need the exact amp to watts calculations, just a rough estimate is fine.

Thanks!

Get a good battery like a optima yellow top.

 

[andrewmoore13 10+ year member]

get a second battery or a HO alt. nothing else more you can really do.

 

[skmfkr 5,000+ posts]

d5100r under the hood and d3400 worked just fine in my honda fit with a aq 2200d

 

[bass_lover1 10+ year member]

Try it out and see what happens.

If your lights dim then the amp is putting too large of a strain on the alternator. I'm sure there is some electronics repair shop around you that could rewind your stock alt for 120A or so.

Just for a comparison, I was running a Linear Power 2.2HV, Linear Power 5002, and a JL 300/4 off my dinky 90A alternator and I didn't have any dimming. Stock electrical, and 1/3 of the Big 3 done (battery ground).

 

[LGK 10+ year member]

how does upgrading to a h/o or rewinding your alternator to a higher amp rating kill your gas milage? i've heard about this, but it was never explained..

 

[basscort2009 5,000+ posts]

click the link in my sig for nice C&D batts for cheap. easily run 2k systems on there own with just one.

 

[galacticmonkey 5,000+ posts]

With that amp, get an alternator that produces more amperage than the alternator produces, and a cheap battery in the back, and you should be set. You could get away with a stock alternator and a big battery in the rear, but it eventually will be drained pretty low after playing for a good length of time, and you will have to turn it down and let it charge back up. Really up to you which way you want to go.

Ive used the BXi1606Ds and they were pretty efficient. I had an 06 Expedition with a stock alt, stock battery under the hood, Group 34 Yellow Top in the rear, and I was running 3 1606s and a ZXi4408. My voltage was pretty good actually.

 

[runteldat 10+ year member]

how does upgrading to a h/o or rewinding your alternator to a higher amp rating kill your gas milage? i've heard about this, but it was never explained..

Kill gas mileage? lol That shouldn't happen at all.

There's no reason to. If it does, it would be very very minor. Such as the AC compressor coming on, technically the engine would have to work a tad bit harder to turn the compressor. When the AC isn't on, the compressor clutch isn't engaged - so its spinning freely.

I don't see how this would be the same scenario with the Alternator.....since the alternator is always working.

 

[basscort2009 5,000+ posts]

With that amp, get an alternator that produces more amperage than the alternator produces, and a cheap battery in the back, and you should be set. You could get away with a stock alternator and a big battery in the rear, but it eventually will be drained pretty low after playing for a good length of time, and you will have to turn it down and let it charge back up. Really up to you which way you want to go.
Ive used the BXi1606Ds and they were pretty efficient. I had an 06 Expedition with a stock alt, stock battery under the hood, Group 34 Yellow Top in the rear, and I was running 3 1606s and a ZXi4408. My voltage was pretty good actually.

think he meant more than the AMP produces lol

 

[Kyle. 10+ year member]

how does upgrading to a h/o or rewinding your alternator to a higher amp rating kill your gas milage? i've heard about this, but it was never explained..

I think it's something like it takes power to make power? so you car has to work harder (burn more gas) to spin the alt. and produce the power its rated for.

Am I right?

 

[Ronmeister]

Get a good battery like a optima yellow top.

"Good" and "Yellow top" do not belong in the same sentence.

 

[basscort2009 5,000+ posts]

"Good" and "Yellow top" do not belong in the same sentence.

i agree //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[runteldat 10+ year member]

I think it's something like it takes power to make power? so you car has to work harder (burn more gas) to spin the alt. and produce the power its rated for.
Am I right?

That can't be true in the alternator instance.

Having a different alternator isn't going to make the engine work harder. The alternator has a pulley on it, with bearings. If its spinning, its working. Many HO Alternators have smaller pulleys on them - but that's still not going to change how fast the belt is moving - just will make the ratio increase. (The pulley will spin faster).

 

[7ender 10+ year member]

So how what would happen if I tried to run the 2006+my 300 watt fronts off stock electrical and the big3?

I know the only real way to find out is to try it, but I can't do that unless I buy the bxi2006 first .