Big 3 Upgrade: Planning Stage (Input Encouraged)

[talnlnky]

Originally Posted by sqcomp

I'm seeing the same. Like Goku mentioned, if one of us put together a dual alternator setup, with one isolated for the use of the sound system...

if somebody had the means to fabricate custom brackets that would probably be the best & cheapest way as you can often go to junkyards and find alts for under $20... I remember a few years back in Spokane,WA there was a junkyard that would sell you alts for $8... tho you had to remove it yourself.

The yaris/echo has been out long enough to have a few cars in the junkyard by now. Tho... if I was going to do custom bracket... I'd be tempted to just pull one from a truck that had like a 100-140amp alt.

one drawback to dual alts would be more load on the engine than a single alt, thus lower mpg's... prolly less than 1mpg difference tho.


EDIT:
Architect
I'm starting to wonder if there is something weird with your car... you dropped cable a while back and then said your voltage was funny after that.... Did you have your battery tested.... maybe you have a bad cell in your battery that is causing a wierd issue.... constantly trying to charge thus sucking amperage, thus lowering voltage... i dunno... be worth checking out tho.

[The Architect]

Originally Posted by talnlnky

if somebody had the means to fabricate custom brackets that would probably be the best & cheapest way as you can often go to junkyards and find alts for under $20... I remember a few years back in Spokane,WA there was a junkyard that would sell you alts for $8... tho you had to remove it yourself.

The yaris/echo has been out long enough to have a few cars in the junkyard by now. Tho... if I was going to do custom bracket... I'd be tempted to just pull one from a truck that had like a 100-140amp alt.

one drawback to dual alts would be more load on the engine than a single alt, thus lower mpg's... prolly less than 1mpg difference tho.


EDIT: r
Architect
I'm starting to wonder if there is something weird with your car... you dropped cable a while back and then said your voltage was funny after that.... Did you have your battery tested.... maybe you have a bad cell in your battery that is causing a wierd issue.... constantly trying to charge thus sucking amperage, thus lowering voltage... i dunno... be worth checking out tho.

Yea when i did that I essentially grounded the stock alternator which mustve messed up some of the internals causing it to charge poorly.

My yellow top sits at 12.75 cold and the alt charges normally.

Ill just take my battery to autozone for a battery test but a hot test would be misleading so idk

[talnlnky]

Originally Posted by The Architect

Yea when i did that I essentially grounded the stock alternator which mustve messed up some of the internals causing it to charge poorly.

My yellow top sits at 12.75 cold and the alt charges normally.

Ill just take my battery to autozone for a battery test but a hot test would be misleading so idk

Hook it up with daul "Walmart specials" now... get two of the walmart everstart 1000CA bats.. they are like $70-80 a pop... run them in parallel... will have way more performance than any single car audio battery would have, and cost the same as a yellow top.

Had a buddy run three or four of those in his civic hatchback... think he fit them all in the spare tire well too. Maybe he had one up front.... long time ago... hard to remember for sure. He was running round 4kw's and a 0.7ohm load on 2ohm amps ... fun times.

[goku87]

Originally Posted by talnlnky

Hook it up with daul "Walmart specials" now... get two of the walmart everstart 1000CA bats.. they are like $70-80 a pop... run them in parallel... will have way more performance than any single car audio battery would have, and cost the same as a yellow top.

Had a buddy run three or four of those in his civic hatchback... think he fit them all in the spare tire well too. Maybe he had one up front.... long time ago... hard to remember for sure. He was running round 4kw's and a 0.7ohm load on 2ohm amps ... fun times.

Three words:

Sulfuric acid fumes.

Not so fun times.

[The Architect]

Originally Posted by goku87

Three words:

Sulfuric acid fumes.

Not so fun times.

idk whats going on with both yours and his statements haha, maybe its bc i read them when i was half unconscious

[talnlnky]

Originally Posted by goku87

Three words:

Sulfuric acid fumes.

Not so fun times.

Three words

Vented battery box


if it's really a problem you just have to seal the batteries in a box, and then make a vent that goes outside so the fumes don't get in the cabin of the car. I question how much of an issue that really is anyway.

If the box is too much work... could try and find the cheapest sealed/non-venting batteries you can get.... do the Exide orbitals release gas? they aren't that expensive are they.