RB20 Fuel System ? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

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...line-rb20.aspx
Deatschwerks 750cc Injectors Skyline RB20DET RB20 - Turbochargers.com
HKS 600cc Injectors Set R32 HCR32 RB20 R33 R34 RB26 GTR:eBay Motors (item 190247893568 end time Aug-24-09 00:08:56 PDT)

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.

08-04-2009, 10:22 PM	#1
RBSilvia1406 Join Date: Jun 2009 Location: Scottsdale, AZ Age: 38 Posts: 29 Trader Rating: (0) Feedback Score: 0 reviews	RB20 Fuel System ? 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?

08-12-2009, 12:35 PM	#3
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	^^^ 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. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

08-12-2009, 04:42 PM	#4
Yellow4g63 Zilvia FREAK! Join Date: Jan 2003 Location: Socal Posts: 1,454 Trader Rating: (5) Feedback Score: 5 reviews	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. __________________ 95 240sx RB20 415whp 91 Nx2000 VVL yo

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08-12-2009, 09:37 AM	#2
datsunnazi Zilvia Member Join Date: May 2009 Location: Salt Lake City, Utah Age: 38 Posts: 171 Trader Rating: (0) Feedback Score: 0 reviews	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...line-rb20.aspx Deatschwerks 750cc Injectors Skyline RB20DET RB20 - Turbochargers.com HKS 600cc Injectors Set R32 HCR32 RB20 R33 R34 RB26 GTR:eBay Motors (item 190247893568 end time Aug-24-09 00:08:56 PDT)