Lastly its time to tackle the grounding cable that runs from the chassis to the engine block. The big 3 wiring upgrade one aspect that is often overlooked when installing a high power mobile audio system is the current capacity of the factory wiring.
How To Install The Big 3 Upgrade Car Audio
Big 3 wiring diagram. Big 3 wiring diagram wiring diagram is a simplified adequate pictorial representation of an electrical circuit. This is the most important cable in the big 3 because the alternator which grounds through the engine to the chassis is your absolute ground. Examine your vehicle before purchasing an big 3 upgrade kit to make sure you have all the necessary tools to do that job and that you buy the correct length of wire. Mod motor coyote install instructions with stock dumb coilspdf. The big 3 is a very easy upgrade to your cars electrical system that will help to reduce voltage drop for power hungry amplifiers. Tahoe suburban diy and useful threads big 3 wiring upgrade step by step with pics.
Sr2 users manual rev 13pdf. A good cost effective improvement is to perform the big three electrical upgrade. The battery to the alternator power wire the engine to chassis ground and your negative battery wire to the ground point. 2 w1 timer enable wire hdr. The big three wiring upgrade. If youve ever measured your voltage drop when playing music with the volume to the max with your engine running youll see that instead of reading 144v or 138 depending on car your voltmeter will read 13v 12v or even lower.
If your sub is the dvc 4 ohm model the best way to wire it would be like. The wiring put in place by automakers is just sufficient enough to support the current demands of the factory accessories and is rarely able to support much more than that. Big drive injector driver system installation instructions. Air fuel ratio meter users manualpdf. So basically the big 3 is when you use a thick gauge wire to beef up your 3 main electrical points. Disconnect the wire at both ends and clean the contact surfaces with a wire brush and cleaner.
Bigstuff3 4 stage dry nitrous nos system set uppdf. Data trigger wire hdr. 2 y2 starting line timing or optional starting line ve or optional 3 step wire hdr. If yours is the dvc 2 ohm model the only safe way to wire it to that amp is like this diagram getting 400 watts rms to the 750 watts rms rated sub. Bigstuff3 sr2 wiring diagram using a trans brake 2 3 step via the msd ignition ground relay 86 30 85 87 87a onoff switch. Mod motor coyote install instructions with ls1 coilspdf.
It shows the components of the circuit as simplified shapes and the capability and signal contacts surrounded by the devices.
Gallery of Big 3 Wiring Diagram
