Nitrous wiring diagram

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Nitrous wiring diagram

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Camaro Forums >> Brand Review >> Nitrous, Super Chargers, & Turbos >> Nitrous wiring diagram

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Nitrous wiring diagram - 5/26/2008 3:47:21 PM

SpecterGT260

Posts: 3831
Joined: 6/5/2007
Status: online

These are the schematics I made to follow when wiring up my kit. Since you end up with lots and lots off wire you had better have a game plan before tearing into your dash.

The Relay

Quite possibly one of the most confusing parts of the install (if you arent familiar with wiring that is). A relay is a device that uses one current to activate another current.   Your relay will probably look like what is on the right. Left is a diagram (meaningless unless you know what you're looking at) that will appear somewhere on the 5 pin relay.    The picture on the right shows all 5 pins as they would appear (the pins are the short lines, and in reality look a little like a prong for any standard electrical plug)

The relay has 2 sides to it, the power side, and the activated side (or at least thats the terminology I will use).   Pins 85 and 86 are on the "Power Side" of the relay, and these pins are connected to an electro magnet. Directions will be given on the package as to which pin should be pos or neg, although connecting them in either direction should produce a magnetic field, although some use internal resistors and should be wired with the correct flow direction.

Pins 87, 87a, and 30 are the "activated" side of the relay.   This circuit will utilize pin 30 and ONE of the other pins. Under normal conditions pin 87a is connected to 30 at all times. That is, when the relay is NOT powered, wires connected to 87a and 30 form a closed circuit loop.   However, once the magnet is turned on by powering the relay, a metal lever is pulled over from 87a to 87. Pin 87 is now the closed loop.   In this way, you can use a relay to ADD power or to TAKE AWAY power from a circuit.

But this is nitrous, so we want to ACTIVATE it with a switch, not deactivate it. Therefore use pin 87 and 30 for wiring your solenoids.

Wiring The Solenoids

As previously stated, the solenoids exist on their own circuit. Now, modifications to this can be made by personal preference. i.e. you may add individual switches or the WOT switch into this circuit as a failsafe if the relay fails. I have had 1 relay fail on me, but it happened when I mounted it in a bad location and crushed it when I closed my hood, the result off which was smashing the pin 30 lever into pin 87 and completing the circuit. Other than physical damage, I wouldnt expect your relay to fail.

In the diagram above, the pin marked 5 is 30, and the pin marked 3 is 87. The unconnected pins are 85 and 86. The only other note about this diagram is that when connecting the solenoids to a single circuit like this there is a possibility that one may fail while the other works. By connecting the wire from the relay to the positive on one solenoid, then connecting the negative of that solenoid to the positive of the other, then grounding out solenoid 2, you will have the same effect of a burnt out christmas light. If one doesnt go, nothing goes. This is just another precaution you can take.

The Master Switch and Window Switch

This diagram shows the innards of an MSD window switch. The window switch is essentially another electromagnet, however it only produces its magnetic field at certain rpm specified by the "RPM Circut".
Again

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