Extra Inector Controller project

[Jeff Smith]

I'm just trying to make a stand-alone device that works along with the
stock fuel system to use additional injectors to provide fuel for an
aftermarket turbo or upping the boost on the stock turbo. Much like the
GReddy Rebic III or HKS AIC, or any number of similar devices.  Only I
want to do it myself ;-)

Speaking of different engine configurations, does anyone know of a good
document or website somewhere that describes in general the ignition and
injection cycles for various types of engines, i.e. 8 cylinder, 4
cylinder, rotaries, etc?  I know, its basic stuff and I should know it
already, but I'm a bit new to the game, and I haven't been able to find
anything that describes this.

Thanks,

jds

Bruce Plecan wrote:
> 
> You haven't given any clues about what your trying to do here, but, Just off
> the top of my head in an effort to get the distibution somewhat even, I'd
> seriously think of firing the injector at a rate of the ignition pulse,
> divided by a prime number.
> ie On a 8 cylinder fire the injector every three/fifth ignition pulse.
> 6cyl 3-5th
> 4cyl 3rd
> An if using more than one injector, I'd be firing them under different
> strategies.
> Course none of this might not work depending on your brand of inectors <g>.
> Bashful
>        Fully healed from last incident
> 
> > My second question has more to do with the timing of the injector
> > pulses. I will most likely be using the ignition coil as the interrupt
> > used to fire the injectors, but is there a more appropriate time to do
> > it? Is there a delay that I should wait after the coil fires, or is
> > there some other interrupt, which would provide a more optimal firing
> > time?
> > TIA,
> > jds