On Sep 17, 2007, at 7:36 PM, Mike S wrote:

> At 09:56 PM 9/17/2007, Michael Elliott wrote...
>> B-but if the injectors all fire together, then 3 times out of four
>> each
>> injector is looking at a closed valve? If so, does that fine cloud of
>> gasoline sorta float about waiting for the valve to open the fourth
>> time?
>
> I'm sure there are SAE papers describing exactly what happens. I also
> suspect that the gasses are much more turbulent than you're thinking.
>
> What do you suppose happens in a carburated engine to the air/fuel mix
> while it waits for a valve to open? Why would a FI engine be any
> different?

So, by adding several meters of high pressure fuel hoses with about
20 connections, 4 pairs of wires, 4 connectors, and 4 injectors, we
end up with fuel being squirted just to hang around 3 out of 4 times
waiting for the valve to open, kinda like old times.

This is better than a carburetor how?  OK, sure the answer is it's
all digital and can be more closely regulated.  Fair enough.

So let me rephrase that -- this system is better than just having one
single injector, upstream, exactly how?