hey guys,

i want to do a big three on my car. now my question is when you run the wire from your alt to your battery, is it necessary to fuse it? is it possible to run the wire from alt-fusebox-than to the battery? also what ga wire should you use? is 4ga alright?

Best to get a shop to do it.

Check the 'big three' upgrade tutorial on sounddomain.com. That should help.

yeah i did, but its kinda unclear what to do with the alt-battery. he has going to the main fuse box but he mentioned a separate fused link but what size fuse should i use? i think he mentioned 300 amp. is that to much? i have a 98 malibu and i think the alt is around 70-100.

any suggestions? thanks in advance.

get a service manual CT sells Haynes!!

Where does the factory wire go? Straight from alt to batt? Duplicate that.

Does the factory charge lead have a fuse in it? Duplicate that.

Do you have a stock alternator? If so, why are you upgrading the charge lead?

its hard to see because its a 2.4 quad and ****s buried in that motor but it looks like the main wire goes from alt-fusebox-battery. yes the alt is stock but i was told that it is best to do a big three when running mono amps.

Did they offer a reason why?

Did they offer a reason why? </font>[/QUOTE]because they require alot of steady voltage and power? or is this a myth and a waste of money. i was also told to use 0ga or don`t bother.

On the site I believe he mentions that he ran it to/through the fusebox and admits that he probably didn't get as good a result as he could have. I would go with 0 awg, especially for the grounds. As for fusing (on the bettery end of the alt/batt lead), the MAXIMUM recommended fuse suze for 0 awg is 300A, so I'd go with that (or less ofcourse). As for alternator issues, do the big three first. It's cheaper than an alternator upgrade. Besides, you'll know after you upgrade TB3 if you require a significant electrical upgrade. In the meantime, enjoy!