GTR injectors AGAIN!

[Waldo]

hey guys i really need to know how to wire inline resitors in my rb20 for gtr injectors to work with my power fc, i need to know exactly what resistors i need to put in and also what resistance the circuit has to be to make them run, i dont want to blow up my precious power fc,

thanx for al you help

regards luke

[Mr GTS4]

i'm pretty sure the power fc can just auto adjust.. might be wrong but.. pm sydneykid about it

[Roy]

No the Pfc does not auto adjust. Ring a few wreckers, Nissan Spares and see if you can get the ballast resistor of the GTR. Have a look at the R32 RB20/26 wiring diagram and it all makes sense

[Waldo]

so if i just get a gtr ballast resistor i just plug that into the loom do i and it will work perfect?

[predator]

There was a guide on how to make them.. was very easy and would cost you about $5 in parts.. I believe it had to do with wiring a resistor on the "active" line of each injector. It was in a stupid place on here (wanted section??) and can't find it for the life of me anymore.

[Ed G]

check this post by Roy out - http://www.skylinesaustralia.com/forums/sh...ead.php?t=62674

[Roy]

so if i just get a gtr ballast resistor i just plug that into the loom do i and it will work perfect?

Its not plug in, it requires soldering whether you use the Nissan ballast resistor or make your own usign resistors from Jaycar.

If you look in the tutorial section i did a thread to help ppl get started. Outside of that it is easy to cut into theloom and solder it all up, just take it slow and triple check everything. If you were in Melb id be happy to do it, including installing injetors its about a 6hr job from start to finish, including removing coil pack covers, inlet piping, taping up the loom etc etc

[Ed G]

Roy, Did you happen to mesure the resistance between the pins before you installed it?

[Sydneykid]

Roy, Did you happen to mesure the resistance between the pins before you installed it?

Mine was 13 ohms with the GTR resistor pack in and 3.5 ohns with resistor pack out.

[Ed G]

Mine was 13 ohms with the GTR resistor pack in and 3.5 ohns with resistor pack out.

Thanks SK, In the workshop manual it states 5k for the resistor pack :confused:

even so 13k seems a little high if the ecu has the same mosfet transistors as the rb20 ecu

[Roy]

Cant remember, i did measure it to check that i had it all wired up correctly. Easisest thing to do is when you are removing the injectors just check the resistance of the GTR injector with the RB20 injector.

I seem to remember the ballast resistor was about 5-6ohms

[Ed G]

Cant remember, i did measure it to check that i had it all wired up correctly. Easisest thing to do is when you are removing the injectors just check the resistance of the GTR injector with the RB20 injector.  

I seem to remember the ballast resistor was about 5-6ohms

well that confirms what the workshop manual states...

[Ed G]

Mine was 13 ohms with the GTR resistor pack in and 3.5 ohns with resistor pack out.

ahhh SK, did you measure the resistance of the whole circut not just the resistor pack?

[Waldo]

so if i simply get a gtr ballast box, i just have to cut and solder each injector positive feed into each of the wires coming out of the ballast box?, if i do it the other way as in wireing resitors inline, do i just cut the main feed to the injector and wire an inline resitor into it, if so what size resitor is needed to do this.

[Waldo]

has anyone ever had any problems with heat as in wiring resistors inline, do they corode if they get to hot, or can you get special resistors (i know resitors get pretty hot anyways) i just dont want to risk blowing my power fc up

[predator]

you are best off getting the heavy duty ceramic ones - I think they are the 1watt.. they are big and square. I'd say if you wrapped that in plenty of electrical tape, and soldered properly you shouldn't have a problem I wouldn't think.

[GTRgeoff]

I used 10 watt 10 ohm from Jaycar. Ran fine until the bloody front turbo on the 25 spat it.

[Cubes]

I'll take photo's when I do mine in a week or two.