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Dropping Resistor?

Topaz
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Topaz Grand Master

Topaz

Posted
Posted

Hello,

I am about to buy some new injectors for my GTR and its said to use a dropping resistor to fit them. Anyone know what that is? I also found out from this site (down between the second and third 'quote') that its something to do with Pulse Width Modulation!

The Nissan part number is 22698-05U10. If I need one, hopefully they aren't too expensive.

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https://www.sau.com.au/forums/topic/126580-dropping-resistor/
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  • 3 weeks later...
TurboX Mentor

TurboX

Posted
Posted

GTR has a dropping resistor standard as injects low impedance.

3 to 4 ohms I think standard.

GTS has no dropping res as using high impedence Inj 12 to 13 ohms standard, but if you fit GTR inj you need to add the dropping res to GTS also.

Hope that makes some sense.... :)

kudos.motorsports Grand Master

kudos.motorsports

Posted
Posted

TurboX is 100% correct all GTRs receive the ballast resistor from factory. This resistor is installed to protect the ECUs injector drivers, as they are actually designed for a high impedance injector setup.

You only require one if you have an RB20 and are upgrading to GTR injectors, factory or aftermarket.

Just as a side not I have two sets of fully serviced GTR direct replacement injector sets currently for sale; 550cc and 660cc, both Denso. Details can be found here.

Topaz Grand Master

Topaz

Posted
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Posted

ok, so I don't need one

cheers

:)

BTW, I have NISMO 600CC Injectors to fit. Just checked your link and the 550CC's are a purple top, can someone confirm that NISMO 600CC injecotrs are also purple top, because thats what I have....

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