Voltage drop in 99blazer

[MerkConvoy501]

So im running a kicker zx750.1 my voltage is above 14V at idle it will dip down to around 12 or so. I work at an audio store but we do not do much set-ups past a 1000rms alot of cookie cutter 500rms setup etc. I dont have very much money tied up in my system at all and im trying to find a CHEAP fix to my problem. Any cheap fixes or advice. I was thinking a Stinger SPC505 its a 5 fared Hybrid Digital capacitor. It says it works similar to a batter and capacitor combination. I had a costumer that had a rockford t1500 in a newer escalade and that SPC505 elimanated his voltage drop and kept his voltage at like 15v.

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[MerkConvoy501]

Another question is what makes a car audio battery different than a stock car battery. Im sure i could research the answer but i would like to have a little discussion on this?

 

[bradl79 10+ year member]

Assuming u had done big 3 already

 

[MerkConvoy501]

No lol you know how audio stores are lol we dont believe in the Big 3.

 

[LOUDNDEEP 10+ year member]

Big 3 and where are is your amp grounded to? The body of the truck really isn't a good ground. There was a large body grommet on the passenger floor on my truck that I used and I grounded right to the frame. I have 01 blazer 2dr.

 

[CrossoverOre 10+ year member]

do the big 3 and upgrade your battery especially if its stock. Lead acid batteries **** when compared to "car audio" batteries.

Lead acid batteries are slower, weaker, and less stamina than other options like agm or gel cell but I prefer the agm option.

 

[MerkConvoy501]

My amp is grounded like all installs done in my shop. We scratch the paint off and then bolt it to the body.

 

[dbjunior 10+ year member]

Factory alt is weak try getting a large case from a Tahoe or suburban at the junkyard should be cheap $40-$50 they are a lot stronger than the factory small case and should bolt up no problem.

 

[MerkConvoy501]

But i will check my ground.

 

[LOUDNDEEP 10+ year member]

I believe the center bolts for the rear seat would be the best ground without going to the frame. Body ground on a body on frame vehicle usually isn't all that great

 

[adulbrich 5,000+ posts]

Another question is what makes a car audio battery different than a stock car battery. Im sure i could research the answer but i would like to have a little discussion on this?

Car audio batteries like XS power have a lower internal resistance than standard lead acid batteries. The can supply large amounts of current quicker than a normal battery.

Also... don't bother with a cap

 

[MerkConvoy501]

Ya im going to do the big 3. If i have a stock alternator and stock battery can i expect my voltage drop to stop after the big 3?

 

---------- Post added at 02:54 PM ---------- Previous post was at 02:53 PM ----------

 

I believe the center bolts for the rear seat would be the best ground without going to the frame. Body ground on a body on frame vehicle usually isn't all that great

From what ive always heard, dont ever use a factory bolt? But to each its own

 

[LOUDNDEEP 10+ year member]

To each his own. You are not driving a unibody car. You cant just throw a ground anywhere and expect it to work. Good luck

 

[MerkConvoy501]

To each his own. You are not driving a unibody car. You cant just throw a ground anywhere and expect it to work. Good luck

You are right.. I will change my ground what makes the seat bolt a better option is it connected to the frame?

 

[LOUDNDEEP 10+ year member]

That spot is more substantial than most places on the body. On a blazer forum they say it ties into the frame from that point but without getting under my truck I can't confirm that. I had my amp grounded there and didn't have a problem. Only reason why I moved it was because I made a substantial upgrade to my electrical and needed the best connection possible.