How big of altenator

[schackel 10+ year member]

oh wait so i get the alt. and do i need a big batt still of can i just use a cap?

 

[jdawg 5,000+ posts]

oh god

you have a big batt under the hood right? Keep that, do big 3, get a ho alt. Personally you might be ok with your stock alt and another rear batt.

 

[schackel 10+ year member]

well i would do that if i had the cash but which would be better?

-alt and batt cap

or

-kenetik 2000 batt and big three?

 

[jdawg 5,000+ posts]

what is the problem with you doing the big 3? On STOCK cars it helps. It is almost a necesity. DO IT REGARDLESS! Put a big batt under the hood and either do a ho alt or add another battery in the back, whatever is easier/cheaper.

 

[schackel 10+ year member]

ok sorry for pissing you off.

you know alot thanks for sharing.

 

[jdawg 5,000+ posts]

I wasnt pissed, i was just saying do it lol

 

[Sinister_kid 10+ year member]

Im running around... 1700RMSish and im only running a 180A alt and big 3 w/ 4 gauge wire.

Stock battery and i still fine unless i really really crank the subs up.

 

[loopkiller 10+ year member]

Im running around... 1700RMSish and im only running a 180A alt and big 3 w/ 4 gauge wire. Stock battery and i still fine unless i really really crank the subs up.

Only way to know for sure is a DMM voltage reading at the amps. You don't want to drop below 12.0V at the worst, and most people would like to stay above 13.0V if at all possible. Do the test yourself and see what you find. That will tell you if batteries are needed. I would assume with that system (1700W RMS) you will end up needing some battery power in addition to that HO alt. I would suggest one of the Group 24 batteries or bigger. Some examples:

Kinetik HC1800 or bigger

Deka 9A31

XS D2400 or bigger

Odyssey PC1750 or bigger

Stinger SP1700 or bigger

 

[jaytoofly 10+ year member]

Only way to know for sure is a DMM voltage reading at the amps. You don't want to drop below 12.0V at the worst, and most people would like to stay above 13.0V if at all possible. Do the test yourself and see what you find. That will tell you if batteries are needed. I would assume with that system (1700W RMS) you will end up needing some battery power in addition to that HO alt. I would suggest one of the Group 24 batteries or bigger. Some examples:
Kinetik HC1800 or bigger

Deka 9A31

XS D2400 or bigger

Odyssey PC1750 or bigger

Stinger SP1700 or bigger

does the yellow top fall into this group?

 

[loopkiller 10+ year member]

does the yellow top fall into this group?

I don't like the Optima product because of many reasons. The main reason being that they are over-priced for the product you are buying. The second main reason being that they do not last as long as the other brands I gave you in the list above. You can get a Deka 9A31 for half the price of a G31 Yellow and the Deka is double the battery IMHO.

 

[MonkeyBone 10+ year member]

pm mechman on here, he will give you a good deal or even look through summit, they might have something for that

Give mechman a call. He has great specials and is VERY helpful. I got a 250 amp alt for $100 off for my Mustang for being a member of a forum (in this case Car Audio Classifieds). It bench tested to 290 amps and was $300.

That kind of alt, the big three and your current battery should be fine for your setup. PLUS you will have the new electrical setup in place if you wanted to go bigger in power for your next setup (which WILL happen - trust me)