s14 battery relocation - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

ny-s14blacktop · 03-10-2006, 06:06 PM

I recently put a yellow optima battery in the trunk of my 96 240sx with a sr vvt black top so I could get rid of the little bulshit battery and everything is good but I was researching and seen that you should have a heavy duty fuse on the battery to stop a fire in in case the wire or terminals corode or short out. Could somebody out there please, tell me what kind of fuse I should use and where I could get my hands on one?

sunnys14 · 03-10-2006, 06:36 PM

i didnt wire a fuse... works good so far for me

ny-s14blacktop · 03-14-2006, 10:13 AM

then you r running the risk of your wires running from the front of the car corodingand shorting and starting a fire once they get a little old

Jefferson · 03-14-2006, 01:01 PM

Dude I didn't use a fuse either and have not had any problems (on both my cars). And you should not have corroded battery wires anyway because you are supposed to change them to a heavier gauge wire.
But I assume you could just use a fuse block(the big one) like the audio kind and splice it in the power wire
Just my 2 cents

jmauld · 03-14-2006, 01:29 PM

You need to find a 100Amp fuse or circuit breaker somewhere. With a previous car, I picked up an 100Amp audio circuit breaker from Circuit City and mounted it inside the box with my battery. I believe it was $30, but this was probably 5 yrs ago.

For those not using fuses, you should keep that advice to yourself. If you're fine with the possibility of burning your own car down, then so be it. You don't need to recommend to others that it's okay, since you are obviously not aware of the power potential in a car battery.

*Tenchuu* · 03-14-2006, 03:38 PM

My problem with fuses on the main power cable was peak draw. i ran a 100A and it kept on blowing after i was driving with the heater, defroster, and stereo all going. yes there is some safty issues, but if you are that concerned then put a cut off switch in the system. when i removed the factory wireing there was about 2-3 ft of non fused battery cable that i replaced with about 12-15 ft of batterey cable, but then again all my clamps that hold the cable in place are rubber lined so an to be non abrasive and non conductive. also li covered any wear points with rubber to isolate it also. all of those things are kinda common sense but then again sometimes peope don't know about it.

untimatlesy it's up to whoever you are, but a cut off switch IS always a smart idea.

*NemeGuero* · 03-14-2006, 04:28 PM

Stillslow · 03-14-2006, 04:44 PM

I ran welding cable so I am not to worried about then corroding this stuff is ALOT thicker and tougher then stereo wire or regular battery cable.

Silverbullet · 05-20-2006, 12:28 PM

sorry to bring back from the dead. Perhaps i just need to be educated better in the electrical aspect, but why do some people use a fuse? The stock battery/pwer system dosn't have a fuse so wouldn't it be the same if i just extended the + wire to the trunk?

kouki_s14 · 05-20-2006, 01:31 PM

cuz stock the wire just runs through your engine bay, so a fuse is not needed. when you route it to the trunk there is a "hot" wire running through your car that carries a lot of power. that wire can heat up and cause a fire. the fuse prevents that by regulating the amount of electricity going through the wire. this only really happens when someone uses a wire that is not thick enough to handle the power, because a bunch of people run without fuses/ breakers and are fine. just make sure you have good connections, but the breaker is always a smart investment.

phrozen · 05-20-2006, 01:37 PM

i just relocated my battery in my s14, ran a 100amp circuit breaker. no problems i ran a power and a ground along the pass side, ill post pics of it when i get home today

sean350z · 05-20-2006, 02:59 PM

is there any detriment to running a shielded 1 gauge power wire within 6 inches of the ecu?? will it mess with the computer?

i'm in the process of running my cable right now and not sure where i want to bring it through the firewall. the ecu harness already has extra stuff ran through it for my guages. i found a spot (s14) right below the lower heater hose area...any other genious ways anyone can think of that would be better

*NemeGuero* · 05-20-2006, 03:16 PM

Quote:

Originally Posted by phrozen

i just relocated my battery in my s14, ran a 100amp circuit breaker. no problems i ran a power and a ground along the pass side, ill post pics of it when i get home today

You don't need to run a ground wire.. you can ground it in the trunk itself to the chassis.

Just scrape away the metal and bolt it to the trunk latch or something.

phrozen · 05-20-2006, 03:33 PM

its better if you ground at the trunk and back to the engine bay

*fliprayzin240sx* · 05-20-2006, 03:45 PM

The biggest issue with relocating your battery to the trunk is when the cable runs back thru the firewall. If you have a slight vibration, the firewall can eventually start slicing thru the power cable and that will cause a short.

Gramentz · 05-20-2006, 04:00 PM

I second that, the same vibration shorted my wire and made my car die going down a bridge..

sean350z · 05-20-2006, 04:23 PM

yea, i think i found another way (s14)...behind the ecu where the two blue relays sit is a panel. that panel there are two bolts that hold the door to the car. i'm thinking directly above that, drill a hole, add a grommet, run the wire between fender and wheel well plastic piece and then run it through the plastic circle by the windshield washer bottle.

samms95s14se · 05-20-2006, 05:17 PM

When you move your battery to the trunk how do you check your timing? Also is it better to just run the cable under the car and into the trunk? I'm about to either replace my old amp power wire which goes from the battery to the trunk with some thicker stuff or relocate the battery to the trunk and just run some thick wire to the amp. What is the best solution?

*!Zar!* · 05-20-2006, 06:02 PM

I'll have Evan do a writeup for you when he relocates mine for me. HAHA.

*NemeGuero* · 05-20-2006, 08:27 PM

Quote:

Originally Posted by !Zar!

I'll have Evan do a writeup for you when he relocates mine for me. HAHA.

Hahah, not me Evan, right?

Quote:

Originally Posted by phrozen

its better if you ground at the trunk and back to the engine bay

A ground is a ground.. as long as you pull good voltage it doesn't matter if you ground it in 1 place or 20 places.

Quote:

Originally Posted by samms95s14se

When you move your battery to the trunk how do you check your timing? Also is it better to just run the cable under the car and into the trunk? I'm about to either replace my old amp power wire which goes from the battery to the trunk with some thicker stuff or relocate the battery to the trunk and just run some thick wire to the amp. What is the best solution?

If you use a fuse distribution box like me.. you can jumper power for a timing light right from there. I ran my cable through the interior for the purpose of keeping the wire safe and protected. I used my old amp power wire. 4 guage.. people say its too thin, but I've never had any problems with it. Summits kit uses 4 guage.

samms95s14se · 05-20-2006, 11:01 PM

Quote:

If you use a fuse distribution box like me.. you can jumper power for a timing light right from there. I ran my cable through the interior for the purpose of keeping the wire safe and protected. I used my old amp power wire. 4 guage.. people say its too thin, but I've never had any problems with it. Summits kit uses 4 guage.

How or where do you clip the timing light on it?

*NemeGuero* · 05-20-2006, 11:10 PM

Quote:

Originally Posted by samms95s14se

How or where do you clip the timing light on it?

Quote:

Originally Posted by NemeGuero

The clear case pops off..

Just grab onto the metal.. anywhere..

projectRDM · 05-21-2006, 08:10 AM

The stud in the front fusebox that the alternator feed bolts to is constant +12V, connect the timing light there.

03-10-2006, 06:06 PM	#1
ny-s14blacktop Join Date: Mar 2006 Location: upstate ny Posts: 13 Trader Rating: (0)	s14 battery relocation I recently put a yellow optima battery in the trunk of my 96 240sx with a sr vvt black top so I could get rid of the little bulshit battery and everything is good but I was researching and seen that you should have a heavy duty fuse on the battery to stop a fire in in case the wire or terminals corode or short out. Could somebody out there please, tell me what kind of fuse I should use and where I could get my hands on one?

03-14-2006, 01:29 PM	#5
jmauld Zilvia Junkie Join Date: Apr 2003 Location: Cary, NC Age: 34 Posts: 355 Trader Rating: (0)	You need to find a 100Amp fuse or circuit breaker somewhere. With a previous car, I picked up an 100Amp audio circuit breaker from Circuit City and mounted it inside the box with my battery. I believe it was $30, but this was probably 5 yrs ago. For those not using fuses, you should keep that advice to yourself. If you're fine with the possibility of burning your own car down, then so be it. You don't need to recommend to others that it's okay, since you are obviously not aware of the power potential in a car battery. __________________ Jason '95 240sx SE

03-14-2006, 03:38 PM	#6
Tenchuu Premium Member Join Date: Apr 2004 Location: Oregon Age: 27 Posts: 2,470 Trader Rating: (6) Rides Gallery: Tenchuu	My problem with fuses on the main power cable was peak draw. i ran a 100A and it kept on blowing after i was driving with the heater, defroster, and stereo all going. yes there is some safty issues, but if you are that concerned then put a cut off switch in the system. when i removed the factory wireing there was about 2-3 ft of non fused battery cable that i replaced with about 12-15 ft of batterey cable, but then again all my clamps that hold the cable in place are rubber lined so an to be non abrasive and non conductive. also li covered any wear points with rubber to isolate it also. all of those things are kinda common sense but then again sometimes peope don't know about it. untimatlesy it's up to whoever you are, but a cut off switch IS always a smart idea. __________________ Rightwheeldrive the Northwest non douchebag forums.

03-14-2006, 04:28 PM	#7
NemeGuero No more nissan. Join Date: Jan 2003 Location: Southern Califaztlan Age: 25 Posts: 8,263 Trader Rating: (10) Rides Gallery: NemeGuero	__________________ NemeGuero's s14 kouki Partout! Get whats left!

05-20-2006, 01:31 PM	#10
kouki_s14 Zilvia FREAK! Join Date: Jan 2004 Location: Los Angeles Posts: 1,560 Trader Rating: (0)	cuz stock the wire just runs through your engine bay, so a fuse is not needed. when you route it to the trunk there is a "hot" wire running through your car that carries a lot of power. that wire can heat up and cause a fire. the fuse prevents that by regulating the amount of electricity going through the wire. this only really happens when someone uses a wire that is not thick enough to handle the power, because a bunch of people run without fuses/ breakers and are fine. just make sure you have good connections, but the breaker is always a smart investment. __________________ I'm amazed at how many people are idiots.

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03-10-2006, 06:36 PM	#2
sunnys14 Zilvia FREAK! Join Date: Mar 2006 Location: a land far far away... Posts: 1,481 Trader Rating: (15)	i didnt wire a fuse... works good so far for me

03-14-2006, 10:13 AM	#3
ny-s14blacktop Join Date: Mar 2006 Location: upstate ny Posts: 13 Trader Rating: (0)	then you r running the risk of your wires running from the front of the car corodingand shorting and starting a fire once they get a little old

03-14-2006, 01:01 PM	#4
Jefferson Zilvia Junkie Join Date: Dec 2005 Location: Orlando, Florida Posts: 394 Trader Rating: (0)	Dude I didn't use a fuse either and have not had any problems (on both my cars). And you should not have corroded battery wires anyway because you are supposed to change them to a heavier gauge wire. But I assume you could just use a fuse block(the big one) like the audio kind and splice it in the power wire Just my 2 cents

03-14-2006, 04:44 PM	#8
Stillslow Leaky Injector Join Date: Nov 2005 Location: NB canada Posts: 78 Trader Rating: (0)	I ran welding cable so I am not to worried about then corroding this stuff is ALOT thicker and tougher then stereo wire or regular battery cable.

05-20-2006, 01:37 PM	#11
phrozen Zilvia FREAK! Join Date: Apr 2003 Location: Bay Area Posts: 1,350 Trader Rating: (0)	i just relocated my battery in my s14, ran a 100amp circuit breaker. no problems i ran a power and a ground along the pass side, ill post pics of it when i get home today __________________ This box is 400x200: http://img137.imageshack.us/img137/8858/400x2005hu.jpg Please do not put your sig pic back if it exceeds this. -Moderation

05-20-2006, 02:59 PM	#12
sean350z Zilvia Addict Join Date: Nov 2005 Location: Downingtown, PA Posts: 832 Trader Rating: (5) Rides Gallery: sean350z	is there any detriment to running a shielded 1 gauge power wire within 6 inches of the ecu?? will it mess with the computer? i'm in the process of running my cable right now and not sure where i want to bring it through the firewall. the ecu harness already has extra stuff ran through it for my guages. i found a spot (s14) right below the lower heater hose area...any other genious ways anyone can think of that would be better __________________

05-20-2006, 03:33 PM	#14
phrozen Zilvia FREAK! Join Date: Apr 2003 Location: Bay Area Posts: 1,350 Trader Rating: (0)	its better if you ground at the trunk and back to the engine bay __________________ This box is 400x200: http://img137.imageshack.us/img137/8858/400x2005hu.jpg Please do not put your sig pic back if it exceeds this. -Moderation

05-20-2006, 03:45 PM	#15
fliprayzin240sx SLINKY + ESCULATOR = Fun Times Join Date: Aug 2002 Location: Ass Crack of Japan Posts: 8,414 Trader Rating: (5) Rides Gallery: fliprayzin240sx	The biggest issue with relocating your battery to the trunk is when the cable runs back thru the firewall. If you have a slight vibration, the firewall can eventually start slicing thru the power cable and that will cause a short. __________________

05-20-2006, 04:00 PM	#16
Gramentz Leaky Injector Join Date: May 2006 Location: Florida Posts: 106 Trader Rating: (0)	I second that, the same vibration shorted my wire and made my car die going down a bridge..

05-20-2006, 04:23 PM	#17
sean350z Zilvia Addict Join Date: Nov 2005 Location: Downingtown, PA Posts: 832 Trader Rating: (5) Rides Gallery: sean350z	yea, i think i found another way (s14)...behind the ecu where the two blue relays sit is a panel. that panel there are two bolts that hold the door to the car. i'm thinking directly above that, drill a hole, add a grommet, run the wire between fender and wheel well plastic piece and then run it through the plastic circle by the windshield washer bottle. __________________

05-20-2006, 05:17 PM	#18
samms95s14se Zilvia Member Join Date: Feb 2005 Location: San Diego, Cali Posts: 255 Trader Rating: (0)	When you move your battery to the trunk how do you check your timing? Also is it better to just run the cable under the car and into the trunk? I'm about to either replace my old amp power wire which goes from the battery to the trunk with some thicker stuff or relocate the battery to the trunk and just run some thick wire to the amp. What is the best solution? __________________

05-20-2006, 06:02 PM	#19
!Zar! Ezel verkrachtende schijteter Join Date: Nov 2004 Location: Milf Valley Posts: 9,457 Trader Rating: (2)	I'll have Evan do a writeup for you when he relocates mine for me. HAHA. __________________ -=Mel=-

05-21-2006, 08:10 AM	#23
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 35 Posts: 13,040 Trader Rating: (12)	The stud in the front fusebox that the alternator feed bolts to is constant +12V, connect the timing light there.

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