Light dimming. Adding batt.

[dakotap 0]

Ok, I just got in my Fi Q 15. I have it running 1000rms at 1 ohm on a Sundown 1500D on stock electrical. I am getting a bit of dimming. I have a run of 1/0 wire with a 1/0 battery to chassis ground. I am thinking of going pickup a Kinetik HC600 or HC800 and put it in the back since, I still have to hookup my JL 300/4 back there. Would this take a bit of strain of my front battery?

I REALLY dont want to have to change my alt. Factory amperage on my Tacoma is 80 amp.

Edited June 24, 2008 by dakotap

[lilblacky 0]

whats your stock alt running at?

[dakotap 0]

80 amp. Edited above.

[audio-neon 34]

what year is your tacoma, if your alt is pcm controlled it could be normal. Also you could look into the missing link audio module, i have heard nothing but great things.

[dakotap 0]

It is a 1999 Toyota Tacoma V6 5-Speed without ABS and no power doors. I know I hit a good note in a song and my Voltmeter on my Premier 880 showed like 12.6v down from 13.7-13.8v

[johnecon2001 82]

You could look for a TRD alternator from an 04. They put out a great deal more power.

Check these out http://cgi.ebay.com/ebaymotors/TOYOTA-4RUN...sspagenameZWDVW

http://cgi.ebay.com/ebaymotors/96-2003-Toy...sspagenameZWDVW

[dakotap 0]

You could look for a TRD alternator from an 04. They put out a great deal more power.

Check these out http://cgi.ebay.com/ebaymotors/TOYOTA-4RUN...sspagenameZWDVW

http://cgi.ebay.com/ebaymotors/96-2003-Toy...sspagenameZWDVW

I was looking at the second listing you posted and I just didnt know how the quality was. It's not a bad price though. I would probably pay that if It did 165amp like it says.

[dakotap 0]

So do you think that the HC 800 would solve some of my voltage problems? Newegg has some open box for $100 shipped. Only $50 more than the amp kit to power the JL im putting. I'll just hook the two amps off the battery and only need a short run of 4ga for the JL. Would you guys even consider open box? It's about $40 cheaper.

[audio-neon 34]

So do you think that the HC 800 would solve some of my voltage problems? Newegg has some open box for $100 shipped. Only $50 more than the amp kit to power the JL im putting. I'll just hook the two amps off the battery and only need a short run of 4ga for the JL. Would you guys even consider open box? It's about $40 cheaper.

It's a bandaid. IT will help, but its not the solution.

[SUNDOWN/FI BEATIN 0]

dropping from 13.8 to 12.5 or what ever is fairly normal as long as you not dropping below 12 everything will be fine ur not gonna damnage anything... a better batt could reduce or eliminate your dimming if your not dropping below 12 already i have 3 batteries in the trunk of my car 2 of which are 85lb GEL cell batteries and i dont dimm at all running my 2 sundown 1500s at 1 ohm nominal .5ohm per amp... i also had to get the factory replacement 145 amp alt replacement on my car after a week the original 7 year old alt died but i have no problems at all now.

[dakotap 0]

dropping from 13.8 to 12.5 or what ever is fairly normal as long as you not dropping below 12 everything will be fine ur not gonna damnage anything... a better batt could reduce or eliminate your dimming if your not dropping below 12 already i have 3 batteries in the trunk of my car 2 of which are 85lb GEL cell batteries and i dont dimm at all running my 2 sundown 1500s at 1 ohm nominal .5ohm per amp... i also had to get the factory replacement 145 amp alt replacement on my car after a week the original 7 year old alt died but i have no problems at all now.

I'm not as much worried about the lights as is now, but I am worried it's gonna get alot worse when I put the JL 300/4 in there...

Edited June 25, 2008 by dakotap

[dakotap 0]

Ok, question.

Would you guys add the battery in the back, OR just go ahead and spend the $40 more and put this in there and no rear battery?

http://cgi.ebay.com/ebaymotors/_Car-Truck-...0072143556&

[johnecon2001 82]

I vote the alternator if you have that extra $40.

[dakotap 0]

Thanks John, I went ahead and bought the HO alternator. I figure I may as well do it right and fix the root of the problem. My factory is 70 amp according to AdvanceAuto, this ones 165. Should help alot! For $150 cant beat it I guess.

[loopkiller 0]

The HO alt is a good start, but it will still lack the power you need at idle. remember that the peak output for your HO alt is rated at a certain RPM. Anything under that RPM will be a lower output. So you are cruzing around beating it and everything is fine, then you hit a red light and it all starts cutting out. Why? Because you also need battery power.

It is not an either / or issue. It is a combination of both that will correct your power issue. Add an HC1400 near the amps and you will eliminate the power issues.

[///M5 2,833]

You aren't running enough power to need both an alt and an extra battery, you will be fine. Just make sure that there are no wiring shortages causing you a bottleneck.