I don't get how the airbox doesn't rob the car of HP with the hard 90* angle on the conical filters at the airbox?
Supportively,
Jay K.
Due to the fact that it is opening into a plenum, the velocity decreases by a large amount as it comes out of the air filter. This decrease causes a corresponding decrease in the Reynolds number. The Reynolds number, among other things, tells you what head losses (read: restrictions) you are going to see from things like 90 degree bends. Because the Reynolds number is so low, it really doesn't effect it.
In laymans terms, it opens up into a big box and from there the turbos suck out of that big box. Because the there is so much volume, the air can move slowly in an unconstricted manner to the turbo inlets.
Dean, thise Filters are 14" long and 6.5" in diameter with a powerstack for even more cross sectional area at the tips!
There's no doubt that the cylindrical filters have lots of FILTER AREA, but what I was really pointing out is the net INLET OPENING that they feed into the airbox. There's no way that those two round holes have as much open area as one large rectangle as wide as both round holes put together. Pressure drop across the filters does come into play though.
There's no doubt that the cylindrical filters have lots of FILTER AREA, but what I was really pointing out is the net INLET OPENING that they feed into the airbox. There's no way that those two round holes have as much open area as one large rectangle as wide as both round holes put together. Pressure drop across the filters does come into play though.