170 amp mechnan alternator problems - Ended Up being my falut . . . OOPS.

[Blake Farrar]

okay so i just bought a 170 amp mechman alternator and before my voltage drop was pretty bad but since i got the 170amp alt its got even worse i dont understand what is going on. I have a hifonics brx 1100.1 and 1200.4 but the 1200.4 is only pushing a set of 6.5 component set so it really isnt useing much amps, also i have a stock batt but its only 5 months old at the most. Im also running 1/0 guage power and grounds so if anyone could help me that would be great.

[walwalka]

You say your voltage drop is worse, but you don't mention any voltages?

That were your voltages before the alt and after?

How many AH is the stock battery? When I had my 1100.1 I have a small XS XP750 in the back to help the voltage. This was with a stock 80 amp alt.

Before the small XS battery I would drop from 14.2v to 13.1 when the bass hit, I had a small the 1100.1 and a F300.

After the small xs battery I started at 14.2v and dropped to 13.9v, half the drop I had before with one small battery. Hifonics amps are power hungry, they like to have a reserve of power.

Edited September 16, 2013 by walwalka

[David Bailey]

Sounds like you need an extra battery in the back.

[Trent Streichert]

I would add a battery, Its only going to make your system sound better and keep the voltage up.

[Blake Farrar]

comes to find out that one of my power wires were coming out of a fuse holder and it was messing with my volts. it perfect now i dont really even drop below 13s idling but thanks for the help guys

[David Bailey]

Don't ya just love it when something you assume (at first) is a big deal, turns out to be a cheap, easy fix! Awesome bro.