Amazingly though, the other long post about Kaase's plexi-box experimental tunnel ram kinda' minimizes the value of a pricey, custom-fabb'ed sheetmetal intake. Put another way, an as-cast old school tunnel ram maybe just as good as one of the modern sheetmetal intakes.
I don't think Kasse's experiment was designed with the intent of showing that a box plenum works, but rather just to show the effects of pulsing in the intake system. In fact, I'd say that a properly designed intake would probably minimize the fuel collecting that was shown in that video. That Marcell intake is hardly aimed at the street crowd, or your typical weekend bracket racer. For the guys running max effort combinations, there is definitely an advantage to a well designed sheetmetal intake.
I like the curved upper CNC part of that intake. It actually surprises me that the lower isn't a curved CNC part. I would think that curved surfaces are much more friendly to maintaining air/fuel turbulence and fuel suspension. Flat surfaces create dead air spaces, and that would lead to fuel clinging and coming out of suspension. Beautiful piece though.
