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Ca18det Injectors Into Rb20det

47une

By 47une,
in Engines & Forced Induction

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47une Collaborator

47une

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Posted

Hi all,

I have two sets of CA injectors laying around, and can get them cleaned and flow tested very cheap. I have searched for ages and only found two posts about this upgrade but they didnt answer either of my questions.

1. Will I need a GTR resistor pack even thought I will be running a Power FC? (my mate with a Wolf didnt need one cause he could just select low impedance injectors through the wolf)

2. What kind of power will the CA18DET injectors flow to considering they are 370cc? (read somewhere that the 270cc RB injectors being on a six cylinder = 270hp??)

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QWK32 Veteran

QWK32

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Posted

if you use a rb20det power fc then yes, you will need the resistor pack. wolfs can run either like you said.

thats right, stock rb20det injectors are 270cc. 370cc injector on a 6 cylinder works out to be about 260rwkw.

QWK32 Veteran

QWK32

Posted
Posted (edited)
Ok, so we have the power question answered, but here comes the tricky part, I will be running an RB26DETT Power FC on my RB20 so will I still need the resistor pack?

oh ok. you should be able to do that.

Edited by QWK32
47une Collaborator

47une

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Just doing some more research and I have found this bit of information:

(http://www.skylinesaustralia.com/forums/lofiversion/index.php/t62674.html)

Quote:

The only problem is the resistance of the GTR 444cc injectors, and the difference to the std RB20DET injector. From memory the GTR injector is around 2.5ohm. The std RB20DET injector is around 12ohm. So running the the re-written ECU or an Apexi Power Fc with the injectors will damage the ECU unless the impedence differences are addressed.

Funnily enough the GTR ECU also needs to see a high impedence just like the RB20 ECU. However it gets away with using the low impedence 444cc injectors by using a ballast resistor from the factory. If you want to use the GTR 444cc injectors with your RB20 then you will need to get your hands on this ballast reistor as well.

salad Veteran

salad

Posted
Posted

I dont think CA18 injectors will flow 260rwkw, as that's around about what the 440cc GTR injectors flow. Simple math says the CA18 injectors will flow close to 220rwkw.

The other alternative to using the GTR resistor pack is get your hands on an MR30 resistor pack. I got mine for $5.50 with the plug and have been running my GTR injectors in the RB20 for close to 6 months now with the standard remapped computer. No issues :(

Cubes is also doing the same thing :P

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