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perhaps it would be superior to pass the cables thru rubber grommets installed in the holes in the body - so the insulation on the power cables doesn't scrape off
perhaps it would be superior to pass the cables thru rubber grommets installed in the holes in the body - so the insulation on the power cables doesn't scrape off
Agreed. My preferred choice over liquid rubber.
And why down the passenger side? I get you're putting the battery on the right side of the trunk for weight distribution, but I would have ran it down the drivers side to make running it in the engine bay easier and cleaner. It's easier to hide those cables going across the trunk.
And why run the negative? All you had to do was ground the battery to the chassis inside the trunk. Then ground the negative in the engine bay to the chassis somewhere as well, no?
Last edited by The Wizard; 02-24-2019 at 08:59 PM.
After I run the wiring to the driver side and put the carpet back I'm going to inspect where they pass through the firewall and see if the wires have moved. I will add grommets if I have to.
Down the passenger side seemed easier to me. I'm not worried about how they'll look in the bay I can always put loom over them to hide them if it bothers me enough.
I was doing some digging and decided to go the two wire route for this reason:
"In a dual wire solution you have the same large currents in the 12V wire, but you now have the exact opposite current (Kirchoff again) in the 0V wire returning to the battery. if you carefully run the two wires together then the magnetic field of one exactly matches the magnetic field of the other, but since the currents are opposite so are the fields. And they cancel perfectly. No magnetic field means no coupling or interference. There is still a strong field between the 12V and 0V wires but outside there’s nothing. So minimal interference occurs."
-Source
Last edited by ChrisMan287; 02-25-2019 at 08:24 AM.
After I run the wiring to the driver side and put the carpet back I'm going to inspect where they pass through the firewall and see if the wires have moved. I will add grommets if I have to.
Down the passenger side seemed easier to me. I'm not worried about how they'll look in the bay I can always put loom over them to hide them if it bothers me enough.
I was doing some digging and decided to go the two wire route for this reason:
"In a dual wire solution you have the same large currents in the 12V wire, but you now have the exact opposite current (Kirchoff again) in the 0V wire returning to the battery. if you carefully run the two wires together then the magnetic field of one exactly matches the magnetic field of the other, but since the currents are opposite so are the fields. And they cancel perfectly. No magnetic field means no coupling or interference. There is still a strong field between the 12V and 0V wires but outside there’s nothing. So minimal interference occurs."
-Source
Ive seen some BMW's stock in the trunk. I'll see how they do it.
Started setting up the ground distribution block last night. 0 GA wiring is going to stock ground point on the motor. Still have to add ground from trans to distribution block as well as other points in the bay and back at the battery from it to chassis.
Waiting for another distribution block for the positive so decided to work in the trunk.
Set up the circuit breaker for the positive side and started playing around with mounting for the battery bracket. Using the stock bracket that will be cleaned up and painted wrinkle black.
Battery mounted I cut an access hole for the circuit breaker, trimmed the carpet around the tray and drilled holes through the scissor jack access cover for the wiring to pass through cleanly.
Buttoned everything up, flipped the switch on the breaker and there was no power going to the car. Confirmed that the breaker is bad even though it was new (open circuit no matter which way it's flipped).. ordered another one will check back in once it's done.
I really should have tested it beforehand
Last edited by ChrisMan287; 03-18-2019 at 09:13 AM.
02-24-2019, 03:02 PM
I cut an access hole for the circuit breaker, trimmed the carpet around the tray and drilled holes through the scissor jack access cover for the wiring to pass through cleanly.
