Fuel Injector Specs Question

[Pete_89T2]

This may be a dumb question, but is there an industry standard used for FI specs?

For example, they all typically quote you a flow rate, such as 720cc per minute, but the actual flow rate achieved depends on the fuel pressure it is tested at. Is there an SAE or other industry standard that tells the OEMs what fuel pressure to test to and use for FI flow rate specs? I'm shopping around for FIs, and just want to understand this better.

[NoDOHC]

From what I recall, Throttle-Body-Injected is 0.75 bar and Port-Injected is 3.0 bar. I think this is a standard, but I am not absolutely sure.

[sickofpistons]

From what I recall, Throttle-Body-Injected is 0.75 bar and Port-Injected is 3.0 bar. I think this is a standard, but I am not absolutely sure.

Would that be for the 750cc FI?

[Trout2]

Typically 43.5 psi

Jack

[NoDOHC]

43.5 psi = 3.0 bar

I am not sure that this is a *standard* but if a complete curve is not supplied, it is typically listed at this pressure (from what I have seen).