Quote: Originally Posted by funks
S3 is boost referenced while S2 is not (static).
So as boost goes up on S2, the effective fuel pressure drops while it's maintained on S3 (hence the later has more fuel).
I understand how S3 uses a boost referenced regulator to keep the pressure constant, but if you look at the chart on the first page you will notice that the injectors in question were measured with a consnant pressure. This is strictly flow related with 2 given constant fuel pressures. They are 43.5 psi and 58 psi. Or in other words, the only thing in question here is,
HOW DO S3 INJECTORS FLOW MORE THAN S2 INJECTORS WITH IDENTICAL FUEL PRESSURES WHEN THEY ARE BOTH 682CC INJECTORS? They are the same injector. And once more, just to make sure you understand the nature of the question,
I am not asking how S3 delivers more fuel than S2. That's obvious. I'm asking
how S2 & S3 injectors (mind you they are the same injectors) would have a different flow rate when converted to RC Engineering standards. I would prefer that the person who made the chart (SY04SRT4) answer this question since he knows what calculations he based his conclusions off of.
