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240 battery relocation

I have mine in the passenger butt cheek on my wagon. I used a large power from the battery to the starter and then taped all the additional power from there.. I ran multiple grounds from the engine to the chassis and from the battery to 2 ground points in the back of the trunk just to get every amp.. Happy with it so far..

-Sam
 
I put mine in the right rear well, when I made my car a V8. Got some H/D welding cable from a buddy.Works fine. Grounded the battery in the well, and grounded the engine at the starter to the body.
 
I like it in the trunk, less heat, weight is in a place it does some good and still easy to jump
 

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283SD said:
Grounded the battery in the well, and grounded the engine at the starter to the body.
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Just make sure you don't ground to "bolted on" sheetmetal. Only trust the welded chassis. Common problem with headlights/E-fans, etc, bolted to front core support or fenders. Always take all devices on that front core support via a GOOD ground cable back to the engine, then engine to chassis to trunk battery.
 
You guys that relocated your batteries to the trunk and ran a giant battery cable under and through your cars to the alternator without putting a fuse or circuit breaker on it are out of your minds.

If that cable gets pinched or nicked, like in a car accident for example, your cars will burn to the ground and Volvo engineers would be very disappointed at your disregard for safety.
 
Steve Zissou said:
You guys that relocated your batteries to the trunk and ran a giant battery cable under and through your cars to the alternator without putting a fuse or circuit breaker on it are out of your minds.

If that cable gets pinched or nicked, like in a car accident for example, your cars will burn to the ground and Volvo engineers would be very disappointed at your disregard for safety.
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I have bought a big fuse (250 Amp) , just need to get off my butt and install it, I agree, that big live cable running though the car is a potential danger....And I do think about it when driving, I have 3 potential failure points along its length. I just finished fabricating and tuning a new shifter, guess this will be next.
 
I'm really surprised those kits don't include something.

Not to sound like an alarmist, but that is a legit danger with nothing to open the circuit in case of a short to ground. You can weld with a 12v car battery for chrissake.
 
Steve Zissou said:
I'm really surprised those kits don't include something.

Not to sound like an alarmist, but that is a legit danger with nothing to open the circuit in case of a short to ground. You can weld with a 12v car battery for chrissake.
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I totally agree, I have added layers of insulation to my positive, including hard plastic where it goes through the frame, but still feel like a fuse is a necessary item. Most kits are sold for "race" cars and they do recommend a master shutoff for those types of installs
 
Dan said:
I totally agree, I have added layers of insulation to my positive, including hard plastic where it goes through the frame, but still feel like a fuse is a necessary item. Most kits are sold for "race" cars and they do recommend a master shutoff for those types of installs
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I learned some stuff on this site, worth a look
http://www.madelectrical.com/electrical-tech.shtml
 
Mad kit has large cable only hot during cranking, and the smaller hot wire uses a fusible link , so no fuse required.
 
I'm planning on heading down to summit tomorrow and picking up some relocation posts.

So that I understand the wiring diagram, if I take the battery out and mount the remote posts in the engine bay, can I run the wiring to the remote posts as if the battery where there? I'd still need to run a ground wire from the negative terminal to the body and then a positive cable from the positive terminal all the way back to the battery correct?
 
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It should be, and probably more than enough in a race car, but most multi-battery setups that I've seen (for car audio) use 0 gauge.

The trouble is there is real variation in what companies are allowed to sell labeled 4awg.
 
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