Injection timing, electro valves &c.

[M HILL]

> 
> >Could one not somehow measure the air charge in a cylinder by measuring
> the conrod compression or someother thing like a genuine pressure
> sensor in the actual cylinder.  Then it would no longer matter how the
> ait got in the cylinder the temp would be close to constant at near
> max compression (correct for fuel load) and then you wuold know one
> cycle later what to inject for the next air load.<

The price of the pressure sensors required for this is somewhat 
prohibitive, around 3000 ukp per cyclinder for decent pressure 
sensor and charge amp.  They are not all that durable either.  Not 
only that but you do get cycle by cycle variations so knowing 
exactly what you have one cycle doesnt mean that you know what you 
are getting on the next.  As has been said, it's pretty much just 
experimental stuff.

Martin.
>