Quote:
Originally Posted by ike84
On that note... 
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Quote:
Originally Posted by ike84
Dude, what are you trying to get at? I'm not denying your point that increasing the diameter of the exhaust will slow the flow. You're hurting your own line of reason by citing boyle's law though - as that volume expands the pressure will drop across the surface - it has to, it's conservation of energy. This is not physics 101 though and there will undoubtedly be more factors at play - CFD is stupid complicated. Flow patterns (laminar vs turbulent flow), boundary layers, vortices, standing waves and resonance patterns, all of this stuff will play into what actually happens in the real world. You clearly understand general physical principles so resistance should not be a foreign concept here. Resistance is the "thin line" so to speak of when it comes to flow. Too much and you choke the system, too little and you lose patterned (laminar) flow which ultimately will siginificantly disrupt the system.
If you don't believe this, take a tour of a major engineering complex (like GE for example). They have an entire team of engineers with impressive credentials whose job it is to model flow systems on computers that rival deep blue.
This part of my project started with the fact that the stock exhaust system is undersized for the hp rating of the vehicle at baseline, and the VE of the stock setup is nothing to write home about. This is my attempt at getting out of the motor what stuttgart left behind 20 years ago. You clearly understand physical principles, so don't you think it's a bit shortsighted to look at one aspect of this entire system from the viewpoint of one principle and then call me dumb for it?
Nevermind, please don't even bother answering that question. I am truly over this thread and I apologize to everyone who has read it.
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I didn't call you dumb, a cardiovascular surgeon? clearly you are not. I was referring to the flippant joke you made to BYP's comment about a fact.I am not prone to using emojis and LOLS. So carry on I still say you'd be better off not disrupting the flow especially slowing and disrupting the scavenging effect.