I had heard a while ago you could run an extra set of secondaries off of the PFC injector driver, but I am about ready to try it and want to make sure it is safe and I won't fry my driver. Anyone have experience with this?

 

Yes, it can be done. If you are currently running resistors for low impedence injectors, they will have to change as the additional injector is a resistor. The PFC injector screen is just set up with double the size of the injectors you are runnning as long as all four are the same size.

4 X 1600cc = 2 X 3200cc

 

So there is no risk of burning out the injector drivers?

 

You shouldn't as long as it is set up properly.

 

I am running Bosch injectors that are giving me a 5 ohm reading, and the resistors I have in there now are 3 ohm, so 8 total. Stock injectors are 15 ohm, so is it safe to say I can just ditch the resistors and wire the injectors in series (10 ohm), or should I leave the resistors in and get closer to a stock load?

 

I think you will be safe either way, just do not install any more resistors for the additional injectors. If you had said that you had 10ohm resistors installed I would say to take them out.

 

Chris would this be an option if inj. duty is still too high?

 

Tim, yes it would, however you would need to change the LIM and fuel rail

 

if you go search for the fjo fuel injector driver there is a guy runnin a gz lim and 4 1600cc injectors he has pics and everything.