Twin injector system?

[Sandy]

They just can't operate that fast! The saturated (most late model cars)
work fine because the dynamic range of the injector is not that great, ie
0hp to 200+, not as we make more power, the bottom doesnt change that much,
ie, the fuel at idle still must have a small squirt. As we make injectors
larger, we must shorten the low speed pulse time. This is not always
possible to keep it operating correctly with that short of a cycle. You
have a couple of options, get peak/hold injectors which have a faster cycle
time or use 2 sets of injectors. The problem with some peak/hold injectors
is that they are for large flowing applications, and typically have poor
spray patters at lower speeds. But you get the idea.

Sandy

At 02:45 PM 6/30/98 -0700, you wrote:
>With all this talk of using twin injectors etc. can anyone tell me the
reason 
>why injectors don't work well with short pulses? I can think of two possible 
>reasons:
>
>1. The inductance of the injector coil means a delay in opening.
>2. The fuel flow takes time to assume its steady state.
>
>Is the reason one of these, or is it something else entirely?
>
>Thanks,
>Stuart.
>