Upgrades: Part One

I made a visit to the local welding supply company to upgrade the TopEnd battery cable. The one they provided (a 4 gauge cable by the same company) was big enough, but after purchasing an "Ubercable" ground, I felt it necessary to upgrade to a 1/0 cable (the next size smaller than the ground at 2/0).

You can certainly see the difference in cable size and understand that the better the cable, the better to conduction of electrical energy (lower resistance). This helps your alternator work a bit better and the claim by Ubercable is that is results in a reduction in loading (more HP back to the engine). The first photo shows the #4 against the 1/0 cable (4 times the size!).

The second photo shows (from left to right) the original BMW ground cable, the Ubercable, the #4 Topend cable and my 1/0 cable upgrade. That OEM cable looks postively sickly compared to the others!