OEM Denso VQ37VHR Fuel injector Flow Test results

[MILENKOGT]

Hey guys, I'm Cory over from Titan forums. Also on FB VQ nation.

Wanted to share some tech info. I recently purchased eight used VQ37VHR OEM Denso (orange) fuel injectors from Z1 MOTORSPORTS to go into my Nissan Titan (VK56).

I sent them to Fuel Injector Clinic to be cleaned and flow tested at 43.5psi and at the Titan operating and WOT fuel pressure of 51psi.

Fuel injector clinic also replaced O Rings and baskets as well.

Here are the results!


First Pic shows Before Cleaning at 43.5psi. Also shows AFTER cleaning at 43.5psi.



Second Pic shows AFTER cleaning but at 51psi, which is the Titan's WOT fuel pressure and around 50-52psi at idle.
These flow 384cc/min or 37lb


Part number 0950-021-09








These injectors were used off of different 370z cars, they were within nearly 6% variance of each other prior to cleaning.

Now after the cleaning at 51psi they are within 1%, which is fantastic.

OEM Non FFV titan injectors are 280cc at 43.5psi
OEM FFV titan injectors are 320cc at 43.5psi.

I went with the 370z injectors because of a good deal, and they flow a little more than factory titan injectors. And are a direct fit. But they do require a new K-multiplier via UPREV, which I got that.

Big Thanks to Z1 Motorsports and Fuel Injector Clinic.

Enjoy the results.

Hope this is beneficial to some of you out there lol.