Injector flow rate vs. PSI?

[Bruce Plecan]

>Are injectors universally rated at a single flow rate, regardless of PSI?

No.

> In other words, will 85# injectors from a 15PSI TBI be the same as 85#
> injectors from a 45 PSI port system?  Or are injector flow rates corrected
> for the PSI at which they're intended to run in an application?

They are tested at the manufacturers specs., and there is no standard.  Some
are rated at 39-41-43 PSI, and the TBIs vary from about 13-15.
Also, some are not very linear.
Some get erratic at short operating pulses, and some nose over in fuel flow
at higher pressures, ie 80 (port) is where some start having troubles.
Peak + Hold injectors, can operate at shorter pulses, "usually".
Grumpy

> -Bob Cunningham
>
>
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