The Big Three wiring upgrade
Use at least a 4 AWG wire and place it directly under the ground strap that runs from the engine block to the frame. In some vehicles there may be a ground strap that runs from the alternator casing to the frame. It would be a good idea to upgrade this also if your vehicle has this.
Likewise, what does a high output alternator do? A high output alternator is built to cope with these demands and is designed to provide enough charge to power everything in your car without excessive effort. Many high output alternators deliver an output of up to 200 amps which will provide enough power without depleting the battery.
Secondly, is a higher amp alternator better?
Not every vehicle requires a high amp, or high output alternator. A general high output alternator will provide more amperage, and in other words more power, but it will also increase the engine speed, proving itself capable of generating more power, but not being very useful in the long run.
Is the big 3 upgrade worth it?
A good, cost-effective improvement is to perform the “Big Three” electrical upgrade. This upgrade replaces or augments three key cables in the electrical system with 1/0 or 4 gauge wires: the battery ground to chassis wire, the chassis to engine block wire, and the alternator plus to battery plus wire.
How big of an alternator do I need for 3000 watts?
3000 watts / 12V = 250A. You’d need a 250A alternator to keep up with it. You’d also need a much fuel tank, since your engine would have to work just as hard as any portable 3KW generator to keep up with the amp. Battery could would depend upon how often & how long you want to run this amp without the engine running.
When should you do the big 3 upgrade?
The big three upgrade and why it’s important. The big three upgrade: It is suggested that if you install a car audio system of 1000 watts or greater you will need to upgrade the stock wiring in the charging system. This the most overlooked necessities of car audio.
Can subwoofers damage your alternator?
depending upon the amp and the load that it pulls it can put heavy strain on the alternator. If you are running your system hard and seeing your headlights or dashlights dimming when the bass hits, this is a sign that not enough power is being created to keep the amp running at 12v.
Is a bigger gauge wire better?
The lower the gauge number, the thicker the wire. Thicker wire presents less resistance to current flow. Relative thickness of wire gauges, drawn to scale (not actual size). Thick wire (12 or 14 gauge) is recommended for long wire runs, high power applications, and low-impedance speakers (4 or 6 ohms).
Is it good to buy a used alternator?
There’s nothing wrong with buying used as long as it has some type of warranty, the price of a used one is significantly less than new or reman, you don’t plan on keeping the vehicle a long time, and the alternator isn’t difficult to change for some reason (it’s a pretty easy job on most vehicles).
Is 0 gauge wire really necessary?
To put simply, the more power an amplifier needs to operate correctly, the larger its power and ground wiring must be. That’s because a 0 gauge wire can accommodate higher demand for electrical current than an 8 gauge power wire.
Will a capacitor help my alternator?
Capacitors will not make up for an inadequate power source. They WILL filter the power, providing a cleaner power flow to the amps, as well as filtering the draw from the battery & alternator.
How many amp alternator do I need?
Most factory alternators are rated at 65 to 100 amps and are capable of handling your vehicle’s basic necessities, such as headlights, gauges, fuel pumps, A/C, etc. These alternators also typically come with a 10 to 15 percent reserve to handle additional accessories.
How do I increase the amperage of my alternator?
You can achieve a higher peak amperage by putting fewer turns of heavier wire on the alternator stator windings. That reduces the winding impedance and lets more current flow, provided you have enough changing magnetic flux to excite the windings.
Do I need a second battery car audio?
Adding a second battery is a good idea if you want to be able to run your car audio system longer when the engine is off, but it won’t do you any good when the engine is actually running.