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Gtr Resistor Pack

darcey

By darcey,
in Engines & Forced Induction

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SteveL Mentor

SteveL

Posted
Posted

Ah, no it's not.

What you have there is probably from an R30 Skyline (or perhaps 280ZX). R32 GTR resistor packs use a grey semi-oval connector plug and don't have a black rubber boot over the plug. OTOH, R30 Skyline resistor packs look exactly like what is shown in your photos, although the number of wires doesn't look right but that might just be the way the photo is taken.

As far as I'm aware R33 GTR resistor pack is identical to R32 type.

In any event, it will do the same job.

SteveL Mentor

SteveL

Posted
Posted
it looks like that thingy in the engine bay of my r32, on the n/s strut tower. my gtr resistor pack u can see the actualy white resistors from the side of it.

The body looks like the R32 GTR type, but the connector is wrong.

BTW, I own an R32 GTR and have a couple of R30 resistor packs on the workbench in my garage.........

darcey Enthusiast

darcey

Posted
  • Author
Posted

Cheers for the info everyone...

I have found some pics of an MR30 pack and two GTR packs...

post-5691-1168750342.jpg

MR30

This looks alot like it but the plug has too many wires

ballastresistorpackqe8.jpg

GTR

Looks totally different...

76.jpg

Another GTR but this one has the same black number code as the one I'm looking at buying...Case slightly different

Does anyone know if the numbers on the pack itself can be used to identify which car it may have come from?

SteveL Mentor

SteveL

Posted
Posted
This looks alot like it but the plug has too many wires

Somethings not right with the one you've been offered if it doesn't have 7 wires. For a 6 cyl car there has to be 7 wires:

1 for battery connection (in the case of an R30 resistor pack that's the red wire on the loom connector)

1 wire for the power supply to each injector, 6 in total (those are the yellow wires, but notice each has a different colour stripe).

There were some 4 cyl Nissans that used L-Jetronic injection and also had a resistor pack, but in that case there will be 5 wires.

  • 4 weeks later...
Cubes Grand Master

Cubes

Posted
Posted
Hey guys, this is just a confirmation question. Can you use the MR30 ballast resisitor with the GTR injectors and if so does anyone know what resistance these MR30 resistors are??

Thanks guys

I remember vaguely mine was 5.2 or 5.8 ohms. One of the two. :laugh:

Drift Freak Collaborator

Drift Freak

Posted
Posted

Hey cubes what ECU do you run??? if the high impedance of the RB20 injectors is about 12ohm and the MR30 resistor is about 5.5ohm the final impedance would be still around 7 ohm, according to everones feedback is that the GTR injectors impedance should be around 2.5ohms. Is this suitable to run with a Apexi Power FC????

Any help would be great.

Also has anyone got the part number for the GTR ballast resistor???

Cubes Grand Master

Cubes

Posted
Posted

The GTR resistor pack measures close to what the MR30 resistor pack does.

Form memory it was actually a little less. Low 5's vs high 5's for the MR30.

All ecu's have a little head room. Ignore the 'theoretical' calculation as its wrong.

Look at what the RX7 blokes run. 6ohm resistors, its what we run and almost every single other manufacture does also. I've never measured a Nissan, Honda or Mazda with a resistor pack greater than ~6ohms.

Theoretically according to calcs they should be running ~10ohm resistors but they dont.

EDIT: I've been running a PFC for 2 years.

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