Nissan 370Z Forum - View Single Post - OEM Denso VQ37VHR Fuel injector Flow Test results

MILENKOGT · 08-30-2015, 01:07 PM

The oem 370z injectors can flow up to 384cc/min. Just depends on your operating fuel pressure.

Since the Titan and I assume the 350z/370z etc.. run a returnless style fuel system the base fuel pressure is probably around 50psi.

Most injectors that you see advertised use the industry standard flow rating of 43.5psi.

I wanted to see the flow rate of the 370z injectors at 51psi which is where my Titan's fuel pressure is sustained at idle and WOT.

So in summary testing the injector flow rating is pressure related. The cleaning helps to keep the variance between the injectors within a certain (hopefully 1-2%) percentage.

08-30-2015, 01:07 PM	#9 (permalink)
MILENKOGT Base Member Join Date: Jun 2015 Location: pensacola, fl Posts: 30 Drives: nissan titan Rep Power: 10	The oem 370z injectors can flow up to 384cc/min. Just depends on your operating fuel pressure. Since the Titan and I assume the 350z/370z etc.. run a returnless style fuel system the base fuel pressure is probably around 50psi. Most injectors that you see advertised use the industry standard flow rating of 43.5psi. I wanted to see the flow rate of the 370z injectors at 51psi which is where my Titan's fuel pressure is sustained at idle and WOT. So in summary testing the injector flow rating is pressure related. The cleaning helps to keep the variance between the injectors within a certain (hopefully 1-2%) percentage. __________________ 2008 Nissan Titan Crew Cab 2wd JWT C8/S7 cam package, Full Bolt ons 372rwhp/447rwtq Uprev Tuned @ Z1 Motorsports Last edited by MILENKOGT; 08-30-2015 at 01:08 PM. Reason: a