save my alternator from the L7's

[titze58 10+ year member]

I have two 15" L7's with a PPI DCX 1500.1. Right now i have a 5 farad capacitor but it doesn't seem to do dick. Ive already gone through one alternator and my new one of about 5 months seems to be going down hill. When i'm pounding for more than like thirty seconds i start losing some of my bass ( and my highs, which are not connected to an amp, just my cd player)I will get the full bass and highs back when i restart my car but they dont last long. Is my alternator not producing enough power or could it be something else? I'm looking for the best solution to keep my alternator in good shape and still be able to run my speakers at their full potential. Sorry for the long thread. Any advice to my problems will be greatly appretiated. Thank you.

Click to read more...

 

[sgshap06 10+ year member]

if your running a stock battery, id say upgrade to an optima..

or do the big 3..

 

[SHOtime 10+ year member]

Your alternator isn't powerful enough. Get a HO alternator or have this one rebuilt for higher output. A search should turn up many options on the subject, both good and bad.

Edit: Also try the big 3 upgrade.

 

[woody89 10+ year member]

Get a bigger alt. Pushing two 15" L7's on a stock isn't good. Big 3 would be nice to do, but with the problems it seems like you have your gonna need a bigger alternator first.

 

[titze58 10+ year member]

what is an average price on a HO alternator?

 

[PepsiFiend69 10+ year member]

depends on the car, and where you get it from

anywhere from $180-350ish, depending on amperage.