Post by
nissanfanatic »
https://forums.nicoclub.com/nissanfanatic-u21678.html
Thu Jul 21, 2005 12:04 pm
What you will need:
At least four feet of 12gauge wire depending on where you get 12v from.A relay. 30amp seems to work wellA fuse. This varies on the size of the wire you use. For 12g, use a 20 or 30amp.A Crimp for use with your coil positive.
Okay, on the relay.
Get a standard 30a relay and:
pin 30-Common. This is where you will run 12g from the battery too.pin 87-This is where you will run 12g wire from the relay to the positive terminal on the coil.pin 86-Either trigger or ground. Trigger is the stock coil positive wire.pin 85-Either trigger or ground. Trigger is the stock coil positive wire.
On pin 85 and 86, polarity does not matter.
Note: I cannot stress enough the importance of a good electrical connection. Therefore, SOLDER ALL CONNECTIONS! I even went as far as to solder the wire directly to the relay pin.
So.....
Step one: Disconnect battery positive and negative.Step two: Find a good source to get a sold 12v from. Remember the reason you are doing this mod and don't get it from a light or something.lolStep three: Make sure the connection is solid. I would advise not using a crimper. If you do, solder it on.Step four: Now run the wire wherever you like to the coil. Keep it clear of the exhuast, turbo, and fan. All of which will eat your wire. Connect this wire to terminal 30 on your relay. Put the fuse somewhere on this wire.Step five: Cut the positive wire running to your coil and solder it to terminal 86 or 85. Either will workStep six: Solder 12g wire to terminal 85 or 86 depending on which you used for trigger, use the free terminal. And run this wire to ground.Step seven: Now run a piece of 12g wire from terminal 87 to the coil positive terminal. You will prolly end up using a crimp connector, but solder it on.Step eight: Re-connect positive and negative battery cables.Step nine: See how it runs.
To take full advantage of this mod, replace your stock coil with a higher power coil. I use a MSD Blaster SS coil.
Here are some pics: (Click to enlarge, 56k safe)The red wire coming from between my PSR is my 12v common.This shows how each terminal is set up and shows where my stock positive coil wire goes. Note it isn't the same color as yours. I had done so much splicing on it that I ended up having to solder a new piece on.This is to show you where I am getting my 12v source from. You can see the red wire runs behind the engine and between the power steering pump resovoir to the relay.This is the result:
Will net better results for larger budgets.
Modified by nissanfanatic at 6:08 PM 7/21/2005