In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Capt. Quirk wrote:

It's kind of like Direct Injection on 2 stroke engines. Up to a certain rpm the injector can fire while the exhaust port is closed. But at wide open throttle the injector is firing at BDC, while the exhaust port is all the way open. That's why an expansion chamber still works on a DI 2 stroke

GAF,

Are there injectors that require more then 12 v?,  significantly higher like 200v? , or 

Can I drive a 12v injector, using 5v, to power an Inductor that produces 12v for the injectors and 300 v for an ignition coil?

Also, have you written any papers that are pertinent to this discussion? 

SAE's online search engine isn't so great. If so do you remember their #, If not I'm going to take a drive to Cal Poly Pomona and look all your material.

Bill

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