The rear subframe project was a pretty major one. It's not done yet, as the Helicoil needs to be assembled, and the rear section of the driveshaft will likely have to be modified. However that is not going to be looked at until the powertrain is back in the car. One of the next projects to tackle was relocating the battery to the trunk. This is what is being worked on tonight. It is not complete yet, but this brings this thread up to date. Tonight's job was to simply get the 1/0 welding cable being used into the car, and routed through. Work started by disassembling the right side trunk panels, removing the passenger seat, removing the battery and tray, and pulling back the bulkhead and floor carpets. Safety is paramount when doing a battery relocation, so a few tips, if you've never done one. First, try to keep the positive cable away from anything metal that can chafe it. This is not always possible, but for the places it is, do it. Second, once you route the cables, zip tie them fairly snuggly together and to other stationary objects. The more movement can be restricted, the less chance vibration will do its work on them. A big thank you to @stryfox (Carl Abbott) for inspiration on routing of the cables.


There is a small hole through the bulkhead near the right subwoofer. There is a sound insulation piece that needs to come out, but it fits back in when done.





Follow the main cable bundle, but bind up the battery cables to keep them from moving

There is a tunnel under the seat frame. Again, follow the main bundle


Continue forward under the tray holding the amp and TCU

Hold the cables towards the left so that the amp/TCU tray fits back on without contacting the cables

Pull the grommet under the battery tray out that has a single vacuum hose for the HVAC going through it. I will add a grommet to prevent chafe before this is complete


Inside, put the cover back over the wiring bundle. This protects the wires from the passenger's feet


Button up the bulkhead carpet


Lay the floor carpet back down, and put all the covers and door sill back on. You know that carpet is getting steam cleaned before the seat goes back in!

That's all for tonight. Tomorrow a new Optima Red Top Group 78 battery and billet mount will be added to the trunk. This battery was chosen for it's slightly shorter height than the H6, and also the side post battery connections. Up front the ground lead will be terminated and bolted to the car. The positive side will be left for the time being. Once this is complete, a bill of materials will be posted, so that this can be more easily duplicated in the future.