View Full Version : RB20 Fuel System ?
RBSilvia1406
08-04-2009, 10:22 PM
Im doing a RB20 swap into my friends s13 hatch. He wants to upgrade the fuel rail and injectors. Ive done extensive searching and im having a hard time finding items for this motor. Is SR20 or RB26 injectors compatible? I know SR is side feed(can get aftermarket top feed) high impedance and RB26 is top feed high impedance just like the RB20. Anyone have any input?
datsunnazi
08-12-2009, 09:37 AM
THE RB20 HAVE LOW IMPEDENCE SO YOU HAVE TO RUN A RESISTOR FOR THE RB26 INJECTORS TO WORK. THERE ARE SEVERAL OPTIONS FOR INJECTORS FOR THE RB20. JUST GOOGLE IT!
http://https://www.upscaleautomotive.com/p-32105-deatschwerks-fuel-injectors-for-nissan-skyline-rb20.aspx
Deatschwerks 750cc Injectors Skyline RB20DET RB20 - Turbochargers.com (http://www.turbochargers.com/store/product_info.php?products_id=2171)
HKS 600cc Injectors Set R32 HCR32 RB20 R33 R34 RB26 GTR:eBay Motors (item 190247893568 end time Aug-24-09 00:08:56 PDT) (http://cgi.ebay.com/ebaymotors/HKS-600cc-Injectors-Set-R32-HCR32-RB20-R33-R34-RB26-GTR_W0QQitemZ190247893568QQcmdZViewItem)
GSXRJJordan
08-12-2009, 12:35 PM
^^^ Backwards. If you have high impedance injectors going to a low impedance injector driver, you need *capacitance*, not resistance. Anyway, if you're upgrading injectors, you'll need engine management - if you're just using an SAFC or something (keeping stock injector drivers) get some Deatchwerks (sp?) injectors or similar low impedance ones. Won't cost much more than RB26, and won't have to run any silly boxes.
Yellow4g63
08-12-2009, 04:42 PM
Yup X2 the RB20 used High Impedance injectors. I picked up some Sard top feed 800cc's for mine but they were low impedance so my friend wired in a Acura Legend resistor box for them lol. They have them in High Impedance now tho.
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