Design Ideologies
One of the most common questions we field here is should you upgrade your OEM earth? The answer is yes; you most certainly should. However before we canvas this topic you might first want to read about how batteries work. For once you have a clear understanding of batteries and direct current we can then move onto to how to go about getting it efficiently moving around the car.
The Modern Car Conundrum
With engineering technology in modern cars getting more and more advanced one aspect that tends to get overlooked by many a manufacturer is an adequate grounding system dedicated specifically to assist the engine electrical and ignition systems. Upgrading existing earths in addition to adding numerous new key earth cables may not seem like much but when you do it the difference is certainly noticeable. Not only will you see small improvements in power and torque figures, your motor will run smoother, it will rev cleaner, your lights will be brighter and although hardly likely to impact you, earthing kits actually assist in fighting engine water corrosion caused through electrolysis. The big winner though is your sound system though, because like everything else in life; your amplifiers need fuel too.
So Tell Me Why?
So why add additional earthing? As you know; direct current flows in a circuit from the negative battery terminal, through the car and it’s electrical devices then returned to the battery via the positive terminal. Everything is fine and dandy from the factory with current happily flowing through all the various electrical devices and back to the battery. However then you install yourself a titanic new amplifier. This is usually where the problems start, and it’s not what many people assume either. See when it comes to inadequate earthing systems it’s usually not the cable itself that is the problem but rather where those cables are anchored. Earthing cables are regularly attached to the side of the engine bay via a small screw often located on sheet metal. Here is where the first bottleneck is created, as you’re trying to flow enormous amounts of current across one or two bolt threads. It’s for this reason we install multiple earths on cars. These additional cables runs from the battery negative terminal to various points over the car such as shock towers, head, plenum chamber etc. Thenceforth this allows current to flow much more readily.
Disclaimer For The Naysayers
A quick disclaimer to the internet experts and nitpickers; these earthing upgrades will only assist if your cars existing earthing system is inadequate for the current you’re attempting to flow. If your car already has a titanic earthing system capable of handling hundreds of amperes of current flow then you’ll garner little value in adding additional earthing cables.
But Which Earthing Upgrade Kit?
If you’re looking to upgrade your car’s standard electrical system you’ll soon discover there’s a myriad of earthing kits available on the market. Whilst it’s true many of these will upgrade the car’s OEM electrical system to the point where it’ll support the OEM ancillaries, most aren’t capable of handling the enormous levels of current that aftermarket audio systems require.
Design Features
Our five position earthing upgrade kit comes standard with high quality 4 AWG cables and can flow up to 500 Amperes of current, which is more than adequate for medium to large systems. However on ordering, it can be fully customised with different gauges (twin 8 AWG feeds for example) and you can also choose your own logo which we can engrave onto the rail with our CNC milling machine. Cable lengths can be customised upon ordering too however the standard kit comes with the following:
– Cable 1 (4 Awg) – 400 mm
– Cable 2 (4 Awg) – 600 mm
– Cable 3 (4 Awg) – 800 mm
– Cable 4 (4 Awg) – 1000 mm
– Cable 5 (4 Awg) – 2100 mm
– Main feed cable (0 Awg) – 500 mm
Now they might seem like random measurements, but over thirty years perfecting these we’ve selected the most common lengths we use. For more information on the earthing kits, how they work and why you should have one if you’re factory fitted earthing system is below par, click here.
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