With the increased power demands and better battery in the FJ I figured it was time to upgrade the chassis grounding. Toyota uses a wire gauge that I consider to small for the demands that we are going to place on it. With the new grounds in place the starter does turn noticeably  faster.

First I replaced the battery – chassis ground with a 2 gauge wire. The original wire must have been about 8 gauge.

Battery Chassis ground

Second was to install another block to chassis ground. Again I utilized 2 gauge wire for this ground.

Additional block ground

I am going to continue through the FJ and replace or install additional grounds. The following still needs to be completed:

• Frame – chassis
• Chassis – hood
• chassis – doors

The grounding of the doors and hood will improve the performance of my radios as well as provide and better Faraday shield in the event that we are struck my lightning.