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 help 240sx v8 wiring
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lancer_013

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44 posts
240sx
hilo hi
10-20-2009

  help 240sx v8 wiring


hi i recently made a v8 swap into my 89 240sx i had the car running on the stock wire harness but i ended up burning one of the wires i think so my questin is to the guys who have done it did u guys order a different wire harness or give me advice of what to do the motor is a chevy v8 350 carb i was think of getting this would this work
http://www.jegs.com/i/Painless/764/50410/10002/-1
OutToWinPAHC
240sx Moderator



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5770 posts
1991 240sx Hatch with LS6/T56, 1992 F2
Philadelphia PA
5-31-2007

 « Re: help 240sx v8 wiring (lancer_013)


What wire did you burn and why?



2002 F-Body LS6, Port / Polished 243 heads with Patriot Racing dual gold springs, Magic Stick V.3 Cam 237/242 .603/.609 114LSA, 1.7:1 Rockers, TR 7.40 Hardened pushrods, LS7 lifters, Ported LS6 oil pump, Comp Cams timing gear / chain, 37# Racetronix injectors, BBK 80MM TB, T56 Spec stage 3

More power then a C6 Z06 in a S13.5

lancer_013

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44 posts
240sx
hilo hi
10-20-2009

 « 


my check step father had rev umm the battery had shake and the wire right next to umm i guess was on top then all i seen was smoke but do you think the painless one is the way to go
OutToWinPAHC
240sx Moderator



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5770 posts
1991 240sx Hatch with LS6/T56, 1992 F2
Philadelphia PA
5-31-2007

 « Re: (lancer_013)


No you have relays, you have harnesses, wire is cheap, exspecially on that engine.

Just rewire it, do it right, and be careful, fuses are good.

OutToWinPAHC
240sx Moderator



Online

5770 posts
1991 240sx Hatch with LS6/T56, 1992 F2
Philadelphia PA
5-31-2007

 « Re: (OutToWinPAHC)


No you have relays, you have harnesses, wire is cheap, especially on that engine.

Just rewire it, do it right, and be careful, fuses are good.[/QUOTE]

Your car is carbed so you have a starter power wire, and a signal to the starter solenoid, engine ground, oil sensor, electric choke?, and some gauge wiring?

For the started you can use all the Nissan stuff, guages well in the cluster there is 2 ignition power sources for gauges.

Save the 600 bucks

lancer_013

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44 posts
240sx
hilo hi
10-20-2009

 « 


so the wirebox wouldnt b to good cuz idk which wire had burn and theres alot
450SX!



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303 posts
240SX
Los Angeles ca
5-25-2007

 « Re: (lancer_013)


the one that burned will have melted rubber around it and be pretty obvious.
if you need to power something with a lot of amps it either needs to be a bigger guage wire.or with a relay. fuse blocks can hold up to a 30 amp fuse. if you are going much higher than this should use a small amp wire from the accesory wire or ignition wire on back of ignition to turn on a relay to pull the power from a larger wire (one of the big white ones) and this should be fused as well to the rating of the relay.

the painless wiring harness would be a waste. If you do not know electrical then it would be in your best interest to do a little research on the internet.
can probably fix your burned wire for 30 bucks (wire, spade connectors, electrical tape, inline fuse holder, wire stripper tool) maybe 50 if you need an extra relay.

when I first started mine up, had wired the clutch safety wire for the starter backwards ,so the relay and sent the 50amps back to my clutch pedal and not to starter solenoid.

trying to start the car wondering why the engine was not turning over and suddenly smoke coming from under the dash. wire was was fried.





be present, hold on to nothing, believe, do...


lancer_013

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44 posts
240sx
hilo hi
10-20-2009

 « 


yeah idk ever thing was fine till the car had shake and smash the wire i goin try fix the wire i goin try change the wire for c
lancer_013

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44 posts
240sx
hilo hi
10-20-2009

 « 


so what whats ur guys opnion
lancer_013

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44 posts
240sx
hilo hi
10-20-2009

 « 


can some of you guys tell me how u guys made urs work
450SX!



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303 posts
240SX
Los Angeles ca
5-25-2007

 « Re: (lancer_013)


I reread the first post and you said you think you burned a wire. you have not actually confirmed that a wire has been burned. what stopped working for you to think that? you are going to need to take your time, there is no quick fix.
$35K later I can assure you that it is in your best interest to take you time.
lancer_013

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44 posts
240sx
hilo hi
10-20-2009

 « 


yeah i found out what was wrong it had a small part of wire that was burned and had a very small hair line crack in the ignation switch very small couldnt even tell but yeah im waiting for my raditor comes in then can run umm i also am waiting for this old man to take out a pretty new painless wiring system he said i could have for free if not i goin order
S14.5silvia2009

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18 posts
s14.5
in a tiny little town pa
11-4-2009

 « Re: (lancer_013)


wireing isnt too bad if u really understand it and its pretty simple to make the orignal harness to work if u wanted to go that way just get fsm manal to both motors and go to town
 

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