Big 3 upgrade

[shawn0336 10+ year member]

i have a dd 9512 and a sundown sae 1200 d. i recently had the big 3 done but in 4 gauge instead of 1/0. im wondering if i upgrade my fuse holder and upgrade my yellow top battery to a kinetik battery it would lower my voltage drops or should i get it re done in 1/0 and upgrade my fuse holder and battery?

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[SourDeez 10+ year member]

unless your alternator is doing over 200 amps there is really no need to replace it to 1/0.

legit ofc 4 gauge is good for I think 160-180 amps. If you're not running more than that, 4 gauge will be doing its job.

Most people just start with 1/0 because the cost isnt that big of a difference and for room to upgrade in the future (1/0 good for 350 amps)

also upgrading your fuse holder shouldn't really change anything. its just a fuse

 

[Phoenix Risen 10+ year member]

redo the big 3 to 1/0 like it should be and get a 80-100ah batt to go in the back by them amp.

also how are your grounds?

 

[shawn0336 10+ year member]

my grounds are good but my stock alt is 105 amps. my amp cuts off because of voltage drops at times so i was thinking about buying a kinetik battery or upgrading my alt to a 160 amp alt. or adding a battery out back i know its unhealthy or my amp to cut off. i just didn't know if i should upgrade my wire again

 

[Phoenix Risen 10+ year member]

have you had the batt and alt load tested?

and with the larger wire that will allow the current to flow more freely, which will help.

personally i would leave the YT under the hood and get a kinetik 1400/1800 to put in the back, or if you have the space pick up one of the deka 9a31s that can be had on here for around 130 shipped.

 

[shawn0336 10+ year member]

ok you think that would work with my stock alt and the 4 ga big 3?

 

[Phoenix Risen 10+ year member]

the stock alt will be fine, mine is only 90 amp and im pushing just over 2k.

redo the big 3 and power run in 1/0 (assuming that the power run is in 4 gauge as well)

and then put the kinetik in the back, and ground it properly with 1/0 making sure to sand down the grounding spot to bare metal.

then just run the power and ground to the amp/s and call it a day.

 

[shawn0336 10+ year member]

ok they left the stock power cable on and upgraded the grounds to 4 ga. my alt is under my car and they didn't have a lift. i would have done it myself but i was feeling lazy. ill find the kinetik and see if i can find 1/0 wire for a good price and ill run the battery off my amp ground in the back. its a good ground and was already sanded down.

 

[Phoenix Risen 10+ year member]

so you dont actually have the big 3 at all then. you need to make a the alt to battery run. thats likely a big part of your problem.

 

[shawn0336 10+ year member]

ok ill run the positive to the alt and upgrade my battery hopefully that works

 

[SourDeez 10+ year member]

so you dont actually have the big 3 at all then. you need to make a the alt to battery run. thats likely a big part of your problem.

Definitely. If you don't complete the whole big 3 its not going to make any changes. Need to complete the whole circuit

 

[shawn0336 10+ year member]

ok i payed for them to have the big 3 done ill take it back and have them add the positive