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Doing RB26DETT R32 gts't conversion

Rowdyr32

By Rowdyr32,
in Engines & Forced Induction

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Roy Grand Master

Roy

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Resistor pack doesnt need power from the battery, it drops the voltage from the ECU sees, so its just a matter of wiring the resistors between the injector and the ECU...see wiring diagram for R32 GTS/GTR.

I spliced into the wires just before each injector

Rowdyr32 Mentor

Rowdyr32

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The injectors need power from some where if you did it on a gtst the wires already have a power supply and the ecu earths the injectors but on a gtr the resistor pack supplys the power to the injectors and the pack requires power. At the moment I'm just taking it from the battery. Guess I'll keep my g/box for the moment but what clutchs are you guys using?

Roy Grand Master

Roy

Posted
Posted
The injectors need power from some where if you did it on a gtst the wires already have a power supply and the ecu earths the injectors but on a gtr the resistor pack supplys the power to the injectors and the pack requires power. At the moment I'm just taking it from the battery. Guess I'll keep my g/box for the moment but what clutchs are you guys using?

I take it you are reading off a wiring diagram. You are right. All the ECU does is open/close circuits that allow voltage to flow thru the injectors pulsing them open/closed.

If you look at the GTR resistor pack you will see that it has 7 wires. All you do is wire it in line with the existing line that branches off and feeds all 6 injectors. So the GTR resistor pack had 6 x blue wires , and one white (may have been white/black) So the white black wire of the resistor pack gets connected to the wire that supply voltage to all the injectors.

Then for each injector, you run one of the blue resistor pack wires to them in place where the original wire was.

Even if you made your own resistor pack, the principle is the same. A resistor doesnt need a voltage supply. V=IR (V=voltage, I= current, R= resistance) So by passing a voltage thru the resistor pack you are simply changing the voltage seen by the ECU.

If you connect the resistor directly to your battery that wont do anything, you need to wire it in line between the ECU->injector-> earth (i believe from memory it is earthed thru the ECU earth... if you wire it to the battery, what is switching the injector open/closed. The voltage needs to come from the ECU as it does the switching....but i think you know this already.

Where abouts are you in Melb? Im in Melb at the moment with work...

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