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Injector Question Rb25det

gijsje

By gijsje,
in Engines & Forced Induction

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gijsje Newbie

gijsje

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I'm going to install a greddy intake on a RB25DET and also change the injectors and install a power fc and get it remapped.

I want to install top feed injectors with a aftermarket fuel rail on the RB25DET greddy intake plenum.

Can i use the RB26DETT injectors when i install the resistor pack?

Can i use the RB20DET injectors without the resistor pack?

I'm looking for a set of 555cc injectors but could I also fit larger injectors like 660cc or larger for further updates to the engine.

The price for bigger injectors is almost the same or could there be a problem with over fuelling or maybe it could be difficult to map with too large injectors

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https://www.sau.com.au/forums/topic/159574-injector-question-rb25det/
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drf76 Collaborator

drf76

Posted
Posted
I'm going to install a greddy intake on a RB25DET and also change the injectors and install a power fc and get it remapped.

I want to install top feed injectors with a aftermarket fuel rail on the RB25DET greddy intake plenum.

Can i use the RB26DETT injectors when i install the resistor pack?

Can i use the RB20DET injectors without the resistor pack?

I'm looking for a set of 555cc injectors but could I also fit larger injectors like 660cc or larger for further updates to the engine.

The price for bigger injectors is almost the same or could there be a problem with over fuelling or maybe it could be difficult to map with too large injectors

yes you can use rb26 injectors they fit straight in with a rb26 fuel rail on a greddy plennum, you can use any injectors for a rb26 but u will have to use a resistor pack unless you find some high impedance injectors such a denso 550cc injectors from a rx7, u might just have to get orings to fit the rail and plennum, btw with 550cc you can get a fair bit of power, just depends how serious your engine will be.

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