[Diy_efi] RE: Diy_efi Digest, Vol 1, Issue 506

[Mike]

surely you'd need much bigger injectors as your spray time per
engine cycle is less, or will you raise pressure or also spray
a little when the inlet valve is closed ?

rgds

mike



At 05:35 PM 1/11/03 EST, you wrote:
>well im no EE but ive been working on a AVR based injector controller that 
>takes a ecm pulse and converts it into a sqeautnaily timmed pulse. im a long 
>way away form having it built. but it can be done. and alot of CDI engine 
>desiels and the mitsu stuff are in fact rail controlled fuel pressue. but
its 
>more in the head return. the point of CDI isnt to spray fuel directly into 
>the cylinder. its to take advantage of the vaporazation from the heat of the 
>chamber/and being able to time the fuel to stave off detonation with hgih 
>compresion ratios. a hot injector pintle will really help to atomize the 
>fuel. this will inturn make it easier to ignite of very lean mixtures. yet 
>again any GM ecm could be use with a bit of hardware development. then again 
>for all the trouble it might actually be easier to just scratch build 
>something or use a design similar to the efi332 project. 
>
>  its all subjective. there alot of way to skin the cat. 
>
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