H/o alt and still no bump

 

Silver Member
Username: Evoixmr

Post Number: 129
Registered: Aug-07
Ive got a zx2500.1 powering 2 12" Q's at 2 ohms. The voltage drop that happens when the bass hits was causing amp clipping .I installed a 170amp alt and the voltage still drops before the subs even get loud. I've read that kicker amps draw alot of current and do not perform well if not being fed exactly 14.4v. Could this be the amp or will a 170amp alt not power a 2500w system.
 

Gold Member
Username: Livin_loud

Do Work Fi Audio

Post Number: 2202
Registered: Jan-06
you need good battery to put out that kind of power. upgrading the big 3 is also a must. how low of a drop are you seeing? also what is your gain set at?
 

Silver Member
Username: Torn

Post Number: 525
Registered: Jan-07
To me M.S always answers these and he says if you got good alt you don't need a extra batt, does that include a working batt and not as good/expensive one? M.S you there? haha
 

Silver Member
Username: Nickyp0219

Post Number: 613
Registered: Jun-06
sorry man i dont mean to jack your thread, but this will probably help you cause in all liklihood your going to have to do the same thing...

can someone give me the link for a good 0 gauge wire to upgrade my big 3, i was searching around and is knukonceptz my best bet? Thanks, i think i found someone who can do it cheap for me since i dont know my as_s from my elbow under a car hood lol
 

Platinum Member
Username: Wingmanalive

A pic is worth 1000 posts!!

Post Number: 13537
Registered: Jun-06
I'll hook you up Nicky.


Let me know how much you need.
 

Gold Member
Username: Insearchofbass

Post Number: 7932
Registered: Jun-04
your looking at 175 amp amps of draw for 2000 watts with an amp thats 80% efficient and at idle your alt puts out less amperage...not to mention the amperage it takes to run the basics your vehicle needs while running
 

Platinum Member
Username: Bestmankind

Los Angeles, CA

Post Number: 18147
Registered: Oct-05
true sean. but he is saying the voltage drops alot before the sub even starts to get loud. i am thinking he needs to find a better ground or his alt isn't doing what its suppose to.
 

Gold Member
Username: Insearchofbass

Post Number: 7935
Registered: Jun-04
your right chad ...I was thinking that everything was ok with the alt and the wiring was ok but either of those things could be the issue...I was also thinking one persons version of loud could be different than another
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6142
Registered: Jul-06
Ok, did you upgrade the big 3 when you installed the HO alt. You MUST do that NO EXCEPTIONS. If you don't it can cause damage, and the problem youre having.

Also you're electrical system will never hold 14.4 volts exactly

Now, a 170 amp alt is not all that big, and may not be enough to run a 2500w system at full tilt.
 

Silver Member
Username: Nickyp0219

Post Number: 615
Registered: Jun-06
Paul - how many feet do you think for a mitsubishi eclipse (2001 if it matters)...
its a smaller car
 

Platinum Member
Username: Wingmanalive

A pic is worth 1000 posts!!

Post Number: 13540
Registered: Jun-06
17' is the standard length. $45 shipped and I'll throw in some other wire for kicks.


For my gizmo connection lol.
 

Silver Member
Username: Nickyp0219

Post Number: 620
Registered: Jun-06
lol thanks Paul, consider it sold if you are willing to wait a couple weeks...need to save some money...

being Valentines Day in a couple, so im a little tight on the wad lol but thanks for the deal and lemme know Signor Larrea
 

Silver Member
Username: Evoixmr

Post Number: 130
Registered: Aug-07
"how low of a drop are you seeing? also what is your gain set at?"

The voltage drops below 11v. The amps gains are tured 1/4 the way up which is like 63v~1000w or something, this is only half the rms of the subs if I turn the gains up to match the subs rms I cant even turn my subs on without clipping.
Before they get loud meaning that standing outside the car with all windows down you hear absolutly nothing

"Also you're electrical system will never hold 14.4 volts exactly

Now, a 170 amp alt is not all that big, and may not be enough to run a 2500w system at full tilt."

I know that a 170a alt will mathmaically only power around 1700w minus th cars needs. but my system is not at full tilt the gains are set at half the rms of the subs. As far as the big 3 I'm runnng two 4 gauge runs fom the alt., and two 4 gauge runs grounding the batt., still trying to figure out where the engine/transmition ground is.

I dont want extra batts in the trunk, and this is the highest amp alt made for my vehicle. Are kicker amps that power hungry and wont run on less than 14.4, would I be better off with another brand 2000w amp, or is 2000w just far to muh power for my vehicle?
 

Bronze Member
Username: Bass_enjoyer

Post Number: 18
Registered: Jun-07
"still trying to figure out where the engine/transmition ground is"

You're power is only as good as it's weakest link. Without doing the third of the big 3 it's almost as if you've done nothing. Try to find that engine block -> chassis ground. I also think 0 gauge is better than two runs of 4 gauge, but I could be wrong. Good luck.
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6143
Registered: Jul-06
^^^^ exactly right except 2 4 gauge wires is fine

Kicker amps efficiencey is average, you probably wouldn't notice a difference with a different amp.
 

Gold Member
Username: Snarl2004

Digital Design 9515, Massive Audi...

Post Number: 2080
Registered: Dec-06
in my truck i bought a 220 amp alt to power my P3000.1 (about 2700rms) and my voltage still dropped and the amp was basicly being a b!tch (it would cut out when the power went below 12.4volts) so i bought a Kinetic HC2400 and ive never had drops lower then 12.9 sence then. I would not run a kicker 2500.1 off a 170 amp alt unless you have a spair batt in the back.

Car audio batts are dry cell anyway so you dont have to worry about spillage or fuses or anything like that and they can be mounted in any possition so nothing bad happens from them.

BTW what kind of car do you have?
 

Gold Member
Username: Snarl2004

Digital Design 9515, Massive Audi...

Post Number: 2081
Registered: Dec-06
"worry about spillage or fuses or anything"

^^^that was sposed to say fumes not fuses
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6150
Registered: Jul-06
You don't need multiple batteries........ replacing your battery with a good car audio one would be nice though, not really required.

You need to get that ground wire in there, your HO alt and other big 3 wires are essentially useless without it.
 

Gold Member
Username: Snarl2004

Digital Design 9515, Massive Audi...

Post Number: 2087
Registered: Dec-06
"You don't need multiple batteries........ replacing your battery with a good car audio one would be nice though, not really required."

true im just saying for me a 2nd battery did wonders

"You need to get that ground wire in there, your HO alt and other big 3 wires are essentially useless without it."

x2
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6154
Registered: Jul-06
What alternator do you have? If its stock get ready for it to go....... extra battery power will keep everything running longer but 3000w = death to stock alt eventually.
 

Gold Member
Username: Snarl2004

Digital Design 9515, Massive Audi...

Post Number: 2088
Registered: Dec-06
he bought a 170
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6166
Registered: Jul-06
Haha no I meant you.......
 

Gold Member
Username: Snarl2004

Digital Design 9515, Massive Audi...

Post Number: 2095
Registered: Dec-06
oh lol i have a 180idle/220max
 

Silver Member
Username: Evoixmr

Post Number: 131
Registered: Aug-07
^^180idle thats insane who made the alt.

I will work on finishing the big three and see if that helps. I drive a 06 mitsu evo ix mr
 

Silver Member
Username: Nickyp0219

Post Number: 641
Registered: Jun-06
nice car, one of my favorites other than the sti
 

Silver Member
Username: Marcooo

Post Number: 372
Registered: Mar-07
Hey Paul I'm doing the big 3 soon and need some 0 gauge. How much would I need for a 03 Ford Escape?
Got the money on hand, can't wait to see the eD wire, if that's what it is?
 

Gold Member
Username: Snarl2004

Digital Design 9515, Massive Audi...

Post Number: 2115
Registered: Dec-06
iraggi and my bad its 175/220

http://cgi.ebay.com/ebaymotors/220amp-Amputator-Series-Iraggi-Alternator-Chevy-G MC_W0QQcmdZViewItemQQ_trksidZp1742Q2em153Q2el1262QQcategoryZ33573QQihZ018QQitemZ 7963120240
item # 7963120240
 

Silver Member
Username: Evoixmr

Post Number: 132
Registered: Aug-07
nice, mines only 70/170

I've looked everywhere and cant find nothing on a engine => chassis ground to finish the 3, will this stuff work instead?

http://www.sunautomobile.com/products_hyperground.htm
 

Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6191
Registered: Jul-06
Umm dude, you make a cable....... just like the other big 3 cables.
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