is the big three the same thing as this?

 

No the big three is a little different. The big three uses much bigger wire, up to zero gauge.

Definition: the "Big Three" upgrade means improving the current capacity of three cables: 1) alternator positive to battery positive, 2) battery negative to chassis, and 3) engine ground to chassis. Some people replace the factory wiring; others add additional cables to the factory wiring. This instruction is to add cables to existing OEM wiring.

 

its good to do both the "big 3" upgrade, and to also do an "uber grounding" kit.

you can use the same size wire for both the "Big 3" and the "Grounding kit" , i prefer 0 gauge... you can order on line, or maybe get lucky and find an electronics store that sells it by the foot or yard, just dont get confused if you use the same color cable for your positve upgrade (Big 3) and your negative upgrade (Uber Grounding). I used wire loom on my grounding wires, and wrapped black tape around the ends of the wire shielding, so if by some strange reason, someone other then me were to work on it, they would be "hopefully" less confused by all the extra wires.

 

http://www.youtube.com/watch?v=SL-9o5kSgv4
i didn't do it to my tc yet. Might do it in the future.

 

thankyou gamma that was somewaht helpful !

 

Where can i buy 0 gauge wire cheap? i think the tc need about 5 to 6 feet.

 

Where do we ground the engine? I was having trouble finding a free bolt near the battery. Ended up doing the head and the hanger bolt for the stock exhaust.

 

Your best bet is to make friends with a local audio shop, because they usually will sell it to you by the ft or finding an industiral electronics store.

 

Well I just did the 'Big 3' on my car. One thing I can say definitively is that I have the worst luck, and I fail at installs. It does seem to make a difference in idle and my trans shifts really firm... With my valve body upgrade it is actually a bit too firm and the car jerks like a truck. Throttle response is noticeable. I think I had a bad ground to begin with though because I have a very very VERY loud whine in my radio and now its gone. Prolly got messed up when I put my kit on.

I am probably the only person in existence who damn near lost a thumb during a simple wire replacement. That is blood on the ground...

 

ummm what the hell did you do?

 

When I was crimping a wire I had my thumb where the stripper part is. Pretty much removed my thumb print. A little super glue and you can't even tell I cut myself. Good thing I have a hefty supply of Vicodine. Ended up taking me 7 hours to do a grounding kit...

 

could you please take pictures of where each wire starts and goes from?
im like retarded and cant figure them out

 

I only did 4 wires. Engine (the exhaust hanger bolt under the bracket) Transmission (used an unused tapped bolt hole and a bolt from my tool box) body (Drilled a hole in the frame and sanded the paint off) and alternator wire. Make sure you leave the OEM wires attached and just use these as additions to that. I guess you could pretty much use any place away from a sensor. There seems to be quite a few tapped and unused bolt holes on the block you just need to find a bolt to fit inside. Google 'Big 3' for Scion there are quite a few DIY videos.

 

Take a pic of your thumb lol.

 

http://www.knukonceptz.com/ usually good deals on wire there!