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Message: [QUOTE="wetnsloppy4x, post: 238586, member: 395"] Windrunner, Lubbockguy thank you for trying to perpetuate the idea I was trying to express in my previous post. I take offese to this. I'm pretty sure my posts were not along the lines of being a ***ing sheeple. The questions I put forth were trying to steer this discussion in the direction it needed to be. That is in the direction of gathering actual [I]useful[/I] information. I don't gaf what a stock nozzled vs. 75% nozzled 175cc flows at some unrealistic p/w. I doubt you'll find any tune worth a sh!t that uses max pulse width. Perhaps the phrasing I used makes me come off as some sort of ignorant bumkin. I don't talk about this stuff all day long so I'm not immersed in the lingo. What I do understand is that the injection event is tied to crank angle and RPM. The higher the RPM, the less time you have to get that fuel in the cylinder. You get to a point where you may be able to empty that 175/50% at 2500 rpms but at 4200 rpms that 50% nozzle may not be big enough to let the full 175cc to empty. At that point, it's time for 75% or whatever. My point is the window of crank angle you have to empty that injector in the time needed for an optimal injection event has nothing to do with the size of the injector. That window gets shorter as RPMs go up. If you have a 1.8ms window to empty your injector, thats how quickly you need to empty that injector. End of story. You need to size the nozzle appropriatly without going too large thus hurting atomization. If a 75% will empty the injector in time, a 100% is just huring atomization and is overkill. The way I see it at this point with the knowledge I have at hand is that every size of injector will have an optimal % nozzle, each being different. Not too big and not too small. RPMs and time is RPMs and time no matter how much lipstick you put on that pig. If you need to empty that 190cc injector at xxxx RPM you need x% nozzle. If you need to empty that 320cc injector at xxxx RPM you need x% nozzle. [/QUOTE]