will my stock alt hold up?

[ultimate157 5,000+ posts]

that amp( Lanzar Opti 2000D) is not pushing anywhere near 1600watts@1ohm, (not a lanzar)as you stated,(If the amp was 100% efficient it would be drawing (1*1600)/14.4=111 amps.) well amps are not that efficient and that figure would be a stable 14.4 with a perfect sine wave, that is not a musical signal

//content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif Opti's do rated power. Some have been benched well over rated.

 

[slickdaddy 10+ year member]

you said it ( benched). see, what alot of companies do is crank the voltage up on a dummy load and record the output ( usually right about the time the amp fries)

 

[ultimate157 5,000+ posts]

you said it ( benched). see, what alot of companies do is crank the voltage up on a dummy load and record the output ( usually right about the time the amp fries)

Independent testing //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[slickdaddy 10+ year member]

this is what they use for there rated output

 

[SHOemup233 10+ year member]

Ok. Your right. I was saying IF it was 100% efficient, which it obviously isnt... lets say it's overrated(which it isnt), and it actually only push's 1400 watts@1 ohm, and actually take into effect a conservative efficiency of 80%. 1400/14.4=97 amps * 1.2 = 117 amps.

And your right, that is a stable 14.4 volts, again which it obviously isn't. Since it isn't, it would be drawing more amps not less.

 

[slickdaddy 10+ year member]

wow, where was this tested?

 

[slickdaddy 10+ year member]

sorry it takes me a little bit to respond , the wife's a little upset

 

[SHOemup233 10+ year member]

cheak again, they do use more than 1 alternator.

Most use more batteries than alts, not the other way around.

 

[slickdaddy 10+ year member]

NO it will draw less amps not more

 

[slickdaddy 10+ year member]

im not saying they use more alts than batteries, please reread what i stated earlier

 

[ultimate157 5,000+ posts]

NO it will draw less amps not more

If an amp is only 80% efficient it'll draw more current to produce the same wattage as an amp that is 100% efficient.

 

[SHOemup233 10+ year member]

Slick, I'm sorry but I don't even know what I am arguing with you about anymore.

NO it will draw less amps not more

WHAT will draw less amps? Voltage? If voltage is 12.5 as opposed to 14.4 it will draw more amps.

1400/14.4=97 amps

1400/12.5=112 amps.

 

[SHOemup233 10+ year member]

Wow. I'm done arguing, slick I don't think you have any idea as to what your talking about.

Back to what it was supposed to be about, emd, I would say do it in steps. Hook it all up, if you have massive drops, from 14.4 to 12 or 11. Then do big 3, repeat. Still the same? New batt. and maybe one in rear. If your still having drops, then a new alt. would be the solution. It's different for every car, my taurus had big drops with only 400 watts, but it was due to frayed and old wiring. Big 3 = wooo!

 

[slickdaddy 10+ year member]

your right on the amp pull( im a little slow,long day), but i'm not tring to argue, just inform. ohms law does not cover the extent of this issue. when i get the time i will

 

[slickdaddy 10+ year member]

WHAT ? no idea? i guess 20+yrs i know nothing,O.K. if u want to go a xtra batt, go ahead. but for your set-up it is not the solution.