Like most of my projects, the wiring for the HMV Freeway got a bit out of hand.
Electrics are an area where I’m quite comfortable, as some of what I do at work is effectively electrical engineering. In this case, I’m playing around using only relays, but well, I kept adding things I wanted, or needed a DPST relay to invert something, or so on.
Everything is pretty carefully fused. I also relocated the battery up to the front area. The black box in the above image contains a lithium motorsport battery.
I have no idea how they do it, but the thing is ridiculously tiny, and weighs basically nothing. I’m guessing they’re basically those jump-starter packs in a battery case, with a integrated battery manager that somehow handles the charging and handles the lead-acid float-charge behaviour.
In any event, it seems to have plenty of gumption, and the engine turns over fine. There’s a 100A circuit breaker mounted to the side of the box, and apparently the starter doesn’t need more then 100A (or the thermal time constant is long enough that the current pulses when the engine does the compression stroke are short enough that the breaker doesn’t trip out).
You can also see I replaced the front brake lines with ones that would clear the fuel-tank structure.
The original wiring on the freeway was…. not great:
At this point, outside of the engine, I think there’s maybe 6” of wire that was originally on the thing remaining. And that 6” is just because the run/charge connector on the engine has a weird connector that I couldn’t find, so I just pig-tailed it.
I’ve gone through and everything is now connectorized. I’m using (chinese knockoff) Deutch connectors everywhere, and they’re working wonderfully.
Additionally, everywhere the wires run along the chassis or could vibrate, I’ve wrapped them in protective sleeving. I also did the same for the oil cooler lines, and the fuel line that runs from the front fuel tank to the engine.
At this point, there’s 13 separate relays I’ve installed (14 if you include the blinker relay).
