[KevinD]

so is that cone restricted to the main plenum? i can see wanting to get a uniform pressure distrubution, but the last thing you want is a pressure drop across the plenum. any idea of what the pressure drop is? i know fluent can do pressure pulsing, have you tried it yet? looks interesting. the first thing you are going to want to do is flow bench it to see if the numbers correspond. from my first glance, it looks like you are going to choke that channel between the cone and the rest of the plenum. what is the volume of the plenum? and the length of the runners? did you tune then to any certain RPM? making intakes are very interesting using CFD. CFD is very hard to get useful info out of... this year we decided to use CFD second and build a few different designs first.... using CFD to optimize later.