Date:         Mon, 17 Sep 2007 20:56:12 -0700
Reply-To:     Michael Diehr <md03@XOCHI.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Michael Diehr <md03@XOCHI.COM>
Subject:      Re: Rich on side, lean the other?
Comments: To: Mike S <mikes@FLATSURFACE.COM>
In-Reply-To:  <20070918023708.10CDF1165C3@hamburg.alientech.net>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed

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?