Which GTR Injectors for RB20DET?

[Remix-]

I've been told that 'GTR' injectors are a good upgrade for RB20DET's. Can someone specify which model GTR injectors are recommended (32/33 etc..).

Cheers

[OFENSV]

i think either will do as they both have rb26 with top feed injectors unlike the 25 which have side feed

[Remix-]

Are the 32 and 33 GTR injectors the same? I understand they are both top feed, but is there any difference in capacity?

[OFENSV]

i think they are both around 480cc but maybe someone else has a different answer. im not 100 percent sure

[Chris32]

Rb26 injectors are the same, wether its R32/33/34

Will fit in a RB20 no probs, but resistance is differant. Will not fit RB25 without mods, but unsure of what you need to do

Chris

[R31 POWER]

So these GTR injectors fit straight in the RB20det fuel rail and plug upto the standard RB20det plugs?

[neil_se]

No, afaik you need to rewire to include the resistor pack.

[BHDave]

You will also need the gtr resistor pack or will have to splice resistors into the injector loom to suit the different impedence as gtr injectors are a low impedence injector where as gtst are a high impedence injector

[R31 POWER]

Is it possible to soilder in the right resistors in the loom with out trying to find a GTR resistor pack.I'm not a electronic person but from my point it would work coz eiether way it is limiting power getting to them?

[DCIEVE]

would be easier with a gtr resistor pack, rather than trying to find resistors which suit the application, your idea would work tho if not for being more difficult

[aybee]

gtr injectors are 444cc

[V8eta]

Ive got my resistors mounted on the ecu case in the cabin and spliced into the loom, less wires around the engine bay that way, ill try and get hold of a digi cam and take a photo.

[R31 POWER]

So any GTR injectors will fit straight into the inlet manifold and use the RB20det fuel rail and then proceed to plug into the RB20det injector plugs?I really want to be sure coz i don't want to rip off all the crap to get to them and find out I have the wrong model GTR injectors.

[Roy]

They bolt in as though they were the std injector, if they were the same colour you could easily make the mistake of re-installing the RB20 injectors.

I seem to recall you need a resistor with an impedence of around 6.5ohms, if you are not going to use the GTR resistor pack, be sure that the resisotrs you use are the same impedence and you should be fine.

The only other issue is why do the factory use big ceramic resistors, is it a current thing? Perhaps using 50c resistors from Jaycar are not quite as suitable...mmmm have to have a think about that.

[Cubes]

In the engine manual it states if you seperate the injectors from the fuel rail you must replace the injector to fuel rail o-rings.

Any one bother doing this?