PWM injector driver/Mechanical system

[The Punisher]

>So my question is: do I really need a crank signal to synchronize
>TDC with my injector firing?
>
>  Brian Michalk  <http://www.awpi.com/michalk>
Tare you designing youre own system?
If you want to know what it takes for a VERY simple system to work, just 
look at how a hilborn(or similar) race mechanical system works. The pump 
increases flow proportional to RPM. And you have a barrel valve attached to 
the throttle blades. The pump is assumed to deliver a given volume of fuel 
per revolution. As RPM increase the flow increases at the same rate. For 
example at 4000 rpm twice the fuel is pumped than at 2000 RPM. Its more 
complicated than that but thats the basic concept. An equivelent electronic 
system would pulse the injectors a given pulsewidth per revolution, and the 
tps would modify the pulsewidth.
Others on this list are much more informed than I about this. But I think 
firing the injectors in reference to RPM would be simpler than not.

Anybody out there..Am I right about the Hilborn FI ?


_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org