From my calculations, based upon the current PC800 fuel pump putting out 36 liters of petrol in an hour, I need to get injectors that are rated for about 30 lb/hr or greater. There are some Delphi 30 lb injectors for sale on DIY Auto Tune for $50/each. I know I want high Z injectors to minimize current requirements. This also means they’ll be saturated injectors. The next size up of injector that DIY Auto Tune carries is a 37 lb model that is marine grade. The anti-corrosion properties would be useful although that big of an injector might be too big. The fuel pump that I have on the way would be able to support the larger injectors although unless I have a turbo or some other form of forced air, I probably wouldn’t need to be injecting that much fuel.
I’m not sure if I want a conical spray pattern that will probably deliver superior atomization or if I want a dual squirt gun pattern that will be able to be directed to hit both intake valves. Both would have their benefits.
Summit Racing has several types of injectors for around $35 each in the right general size category. For instance, the FAST 30332-1 would be about the right size. The ACCEL 150132 at 336cc/min would be about right, too. I’m not sure if there is a big difference in quality between brands or not though. I’m willing to pay a little more for a better injector that will last longer and be easier to use on this project.
Unrelated to injectors… I think I am going to go for the Mega Squirt II so that I am ready to expand to full spark control after I get fuel injection squared away. I also think I will spend the extra couple of bucks to put a knock sensor on my engine.