| Re: Primary tube math |
Subject: Re: Primary tube math by jhammons01 on 2008/8/7 15:52:35 The reason that there is no data on FI over N/A is that forced induction will have no effect on CFM at all. CFM will be dictated by the smallest orifice in the entire setup......once you've determined where the smallest orifice is.....and you calculate the flow of said orifice, no upstream pressure will change that flow. So you are looking for Data that does not exist and that is why you are asking it on this forum....what I mean by that is you are a very very capable researcher.....and you are failing to find what you are looking for, hence the need to ask here. "tuned" I am not an expert but the way Tuning of intakes and Exhaust were explained to me was the "Flow" or waves are tuned to move at the right time. Picture a wave in the ocean hitting a wall or a jetty. The wave "bounces" back creating a wave heading in the wrong direction.....you want that wave to hit the other side and be heading toward the inlet valve when the valve opens up again.....that is the reason for the "Length" of the plenum being so important. Headers are the same way, there is a restriction, somewhere down there, a valve opens up and exhaust comes flying out of a chamber in a large wave...you don't want that wave to hit the restriction and come flying back just at the time the valve opens up..... That was the explanation I got on flow and tuning. The CFM part I work with every day and I am sure of those facts. The Tuning part.....I'm just throwing things out there |
