DFI, Batch Fire, and other myths

[Sandy]

It becomes hard for the pressure that gets back into the fuel system, ie,
14lbs of boost will change the flow as instead of squirting against a
vaccum or light pressure, they now have to overcome what ever the boost is.
Sure boost adjusted regulators will help, but it get difficult to overcome
the dynamics of the pulses of each injector. Think of this if I have a pump
that does injection at 15lbs of fuel pressure and I have 15lbs of boost,
the fuel will not come out of the injector. Multiply this problem with more
open injectors and the fuel rail becomes very hard to regulate.

Sandy


At 09:38 AM 1/21/99 -0800, you wrote:
>Why would it be a problem to deal with lots of boost when all the injectors
>(or a bunch) are opened at the same time?   Is the problem associated with
>pump pressure versus flow capacity, or with the actual manifold fuel
>dynamics?  Just curious.
>
>Walt.