Sequential injection.

[Martin Hill]

> > Hi all,
> > 
> > While trying to develop a multiport FI system to a four cylinder engine I
> > figured that (obviously) a system that yould drive all the injectors at
> the
> > same time, or drive them in pairs is easier to do than a true sequential
> > system where each injector is controlled independently. What would be the
> > advantages of a sequential system (if any)? I'm trying to decide whether
> > it's worth the added complexity of a sequential system. Another question
> is
> > when would be the best moment to turn the injector on (or the best time
> to
> > turn it off???).
> > 
> > Thanks in advance,
> > Jose Carlos Rublescki
> 

Inject when the inlet valve is closed.  Start injecting soon after it 
closes so that you have stopped before it opens.

Martin