I'm connected as shown with a Southwire 21550T but current isn't passing through. Stumped.

Just seeing you, Deedee 1400 strobe

Okay. What if the battery is in the back of the car? Like a Dodge Magnum. Do you have to run the wire all the way from the alternator to the battery in the back of the car?

Nilo b omas as

That's the wrong fuse to use

thanks for the vid.

This is one hard clip to sit and watch. BS music. Do you get paid to play that crap??. Gain not even set right. I hope you explain Why a guy should do this big 3 job. Your taste in music sucks what is it jazz shit rock???

excellent video, made it really easy to follow. I am going to do mine this upcoming week tks again.

Great job! I will do mine. Thank you very much.

2005 envoy got power to everything and I got my battery unhooked

always solder connection if possible.

Nice work! Cleanest I have seen

You need stronger alternator. What help you that? Maybe ground (old is rosted....)

NICE WORK

Great video. Highlights the importance of the grounding cables. Why did you leave the "old" cables in as well as the new ones?

A very detailed explanation every step of the way for doing a big 3 upgrade. Thanks so much for the video.

could you please help, Im doing big 4 this weekend and was wondering if you can keep original grounds and plus. Im adding a 0 gauge wire (50mm2)

Great vid. Why do you keep the factory leads connected and paralleled? The 1/O at 12.5 VDC and 20 feet (total loop) can carry 150 Amps all day. NEC limit is 170 Amps at 90°C but also consult ANSI/CTA-2015 for actual calculations based on your specific power cable. But there is no need to keep the factory cable unless you're just retaining it if you ever remove the Big 3 setup when selling the car; however, it is also a potential lead to fail or short. I'd just remove it. I notice this in many of the Big 3 videos that they keep the factory wiring. I'm new to this but are they just looking for the added ampacity of the parallel conductor?

In some cars where you cannot access the stock engine to frame. Wire .can you just add the new wore at a new location while leaving the stock wire in place. Which means there's going to be 2 engine to frame ground cables.

What size screw fits in the predrilled hole on the engine block? My engine ground is not accessible but the predrilled hole is.

Hy. If originally we have 120A fuse in subarus, 250A is not to big or how is going with that?

Leaving the old wires makes them the weakest links, could cause shorts! Older stock wires can corrode up into the insulation. Unless you're going to run an aftermarket alternator; the cable is oversized for the alternator. Mine I believe was a 60 amp for my 07 Impreza Outback Sport, upgraded to the Forester 90 amp. ( Trailer, fog, ditch lights and maybe dual 6-8" under seat subs )

After all this work, you realized is useless...…😅

So with this big three upgrade you not swapping out the battery and alternator you just adding wire to it??

Good quality video that you could understand! THANK YOU!

Great job and great video on that Big 3 upgrade my friend!!! 👍👍👍 The only thing is that some cars are harder to do the Big 3 upgrade than others!!! Depending on the location of the alternator and the engine block ground location!!! That one on this vehicle you just did was a little hidden but you seemed to do it with no problem!!! I'm in the process of doing the Big 3 upgrade on my 2008 Ford Escape and the alternator is right between the cooling fan and the engine so I shall have my work cut out for me!!! Considering that I'm also upgrading to a high output alternator also!!! The negative post ground looks simple to get to and so does the engine block ground!!! ✌️✌️✌️

The Dielectric grease does not conduct electricity, so it shouldn't be applied directly to the mating surfaces just a warning.. Put it over the terminals after you tighten it .. Also I would wire loom the wires themself .. Preferably fiberglass lined loom or tesa tape

I have my battery below the passenger seat,for the negative cable from the battery can i just bolt to the floor instead of running the cable all the way to the front chassis?

sir what is the purpose of this upgrade specially extra alternator wire to battery

Yes good video and straight to it.

I’m doing the big 4 💪🏼💪🏼💪🏼 engine ground , alternator ground , alternator to batterie, and batterie chassis ground, all in welding 2 awg wire the best for the big 3 big 4 also secondary and replacing all the wiring

Nice job!

Okay so I have a question why did you leave the Old wire still attached and I watched a few other people do this one guy made sure his fuse box had an upgraded wire too and also an upgraded wire down to the starter I thought the big three upgrade was alternators starter and fuse box and when I did buy and I took out the old wires discarding them why did you leave yours in there isn't that leaving room for air in the future they are old wires I'm just baffled on why you didn't discard them but you do you have a very good video here I have no complaints about the video just a question that's all great job bud

Would you say it's not necessary to put in a fuse from the alt wire to the battery?

Didn’t mention what size fuse

what do you call on the end of the Drill removing the paint to expose the metal part?

I crak up when i see 3' long 0ga grounds . You relize your car could never even begin to pass enoung amperage to even over run a 3' 10ga right lol. Now the longer ground sure 4ga ofc .

Great video but that music was distracting 😣😖😣

💯💯💯💯💯

You could of use copper washers to pack joint,

what was the point? you only do this of u run 1000w sound system

you need to first clean the battery... then the terminal.... that's an old corrosion battery ..

Did it make a big difference on power

Why you reconnect the old wire? Thought you got rid of that?

Great video. Want to ask, is it necessary to install the fuse in line on the positive wire?

I still don't understand the difference between resistance and continuity. The way I see it is they are the same thing.

I recently did the big 3 upgrade with a high output alternator I needs a smaller belt for the new alternator I can not find one anywhere. Do you know where to get a custom length serpentine belt?

its a good tutorial

I just checked and my engine ground isn’t connected… nice vid and thanks for showing the process. Now I have things to do during 4th of July.

What did you cut and added at the end ? Fuse connectors!