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NHRA legal battery relocation?
Posted: Sat Dec 12, 2009 10:35 pm
by Broken Glass
So im going to relocate mine, and im very confused on the rules for it. I know im getting an NHRA legal box, along with the kill switch, but i heard you have to run 2 wires back one of the bloc and one of the alternator? can anyone else elaborate more on this for me?
Posted: Sat Dec 12, 2009 10:42 pm
by neonpla
Posted: Sun Dec 13, 2009 12:12 am
by Fuzzyneon
what about in the fender is that nhra "legal" ? guy on neons.org makes a kit to put it on bumper area
Posted: Sun Dec 13, 2009 12:58 pm
by Broken Glass
So basically what i see is there just needs to be an independant wire for the alt running along side the normal wire to the kill switch? and fuses in both of these wires?
Posted: Sun Dec 13, 2009 8:58 pm
by racer12306
The goal is to have all power cut when the switch is turned off. Essentially the engine will shut off when the switch is turned off.
Posted: Sun Dec 13, 2009 11:03 pm
by Broken Glass
I understand that, but forwhatever reason i thought i read that the NHRA requires different cables for the alternator, which seems weird if they just get turned into one though the switch.
Posted: Thu Dec 17, 2009 5:30 pm
by Broken Glass
any recomendations on which fuses to use for the alternator wire and for the power block wire? thanks
edit: and any places on where to find these fuses and wire to run this would be appreciated. im turning a blank
Posted: Thu Dec 17, 2009 11:07 pm
by Themaggots
Posted: Fri Dec 18, 2009 12:06 am
by Broken Glass
Thank you very much sir
Posted: Mon Dec 21, 2009 10:55 pm
by Broken Glass
Bump for a question on battery cable sizes. Im looking at welding wire, whats the difference between #4 cable and 4/0 cable? and which do i want for the relocation
Posted: Mon Dec 21, 2009 11:02 pm
by racer12306
4/0 is bigger than #4, by a lot.
Posted: Mon Dec 21, 2009 11:03 pm
by nineball
the smaller the number the bigger the wire. for example, going from smallest to biggest, 12g, 10g, 8, 4g, 2, 0g, 2/0 (00)g, 3/0 (000)g, 4/0 (0000)g.
the blue wire in this pic is 4g. note the size of the rubber tubes near it for size comparison to the next pic.
the blue wire here is 0g.
if you are just running cables from the rear to the front you will only need 4g. if you want to be anal and add extra weight you can use 2g or 0g but it will just be overkill.
Posted: Mon Dec 21, 2009 11:11 pm
by Broken Glass
ahh alright, i figured it was something like that, but i wanted to be sure. Thanks alot for your help
Posted: Sun Jan 03, 2010 9:33 pm
by Broken Glass
Bump for another question. to use the battery blanket in the rear mounted battery i can just extend the two wires for the sensor correct? there wont be any problems using it in a sealed box?
Posted: Fri Jan 15, 2010 9:51 pm
by Broken Glass
bump for answer, im finishing everything up tomorrow
Posted: Fri Jan 15, 2010 10:39 pm
by NickKo
Broken Glass wrote:Bump for another question. to use the battery blanket in the rear mounted battery i can just extend the two wires for the sensor correct? there wont be any problems using it in a sealed box?
Depends on what you mean by 'sealed'.
*Ideally*, it would be best to have the box vented to the outside of the car, to avoid the buildup of corrosive fumes <-(potentially flammable / explosive as well).
I do not know what the NHRA requirement is on this, however.
- Nick
Posted: Fri Jan 15, 2010 11:25 pm
by Broken Glass
Oh sorry, the box is vented outside through the included vent, i believe its around 3/4 of an inch. the NHRA does not have a rule on the blanket ( i believe) but ive heard the sensor on the blanket measures the tempature of the battery and then changes the charge based of that? or something like that. In the how too, it seems like he just put the blanket around the battery but did not wire up the sensor
Posted: Mon Oct 25, 2010 7:16 pm
by Ntyvirus1
bump for question about using the battery blanket with a relocated battery.
Posted: Mon Oct 25, 2010 10:26 pm
by occasional demons
Broken Glass wrote: but ive heard the sensor on the blanket measures the tempature of the battery and then changes the charge based of that
This.
If the blanket has the wires, you would want it to be with the battery.
Tho it should be cooler in the summer months in the trunk. The only "downside" I could see to this, is it will take a higher charge being cooler. The "downside" being a daily driver, it may lose a little fuel mileage from the alternator putting out a higher current.
But if for some reason the battery begins to overheat, it could be a little peace of mind, knowing the pcm might do it's job, and reduce current to the battery, so it doesn't cook inside your trunk.
If it is just the regular black plastic sleeve, then depending on where it is located to, prolly not critical to retain it.
Posted: Tue Oct 26, 2010 1:30 pm
by Ntyvirus1
thnx, mine has the snesror in it but the actual blanket looks like crap, would it throw a cel if i didnt use the blanket if the battery was in the trunk or would just the charging be different? any chance of the battery randomly dying? ( yea, im not too knowledgable on electrical issues so sorry if its a dumb question)