How much flow??

[JRCivic]

First things first: any given flow rating must be followed by a fuel pressure for proper comparison.

The stock Integra GS,RS,GSR,R injector flows 235cc/min. at 43 psi of fuel pressure.

The Venom Injectors are tested at 40 psi of fuel pressure, so you have to alter the rating accordingly.

I run a set of Venom 320cc injectors in my 8psi GSR. My peak fuel pressures before I removed the Fuel Enrichment Relay/Pressure switch was 62 psi. After the removal of the fuel enrichment relay system, I had to increase my peak fuel pressures to 84 psi to avoid any lean conditions.

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'93 Civic Si H/B with B18C1, JRSC @ 8psi
Best 1320: 12.68 at 110 mph

[rjaffey]

Jim,

Where does that 235cc/min number come from? I've heard that number many times, but never seen anything that supports it. Further, my own testing on a couple of JRSC'd GSRs with RC 270s (rated at 43psi) and Venom 280s (rated at 40psi, about 285 at 43psi) would indicate that they're much closer to the stock injectors than 235cc/min would indicate. Sonny V. had RC check a B16A injector and they produced a printed report showing that it was 250cc/min after cleaning, which still sounds low considering my results. I was also told by Python injection (Venom) that stock GSR injectors are more in the 260 to 265cc/min range (at 40psi), but I've nothing else to support that. BTW, I'm running about 75psi peak at ~10psi with 320s.

Anyhow, here are the results of RCs testing done on a stock Si injector: