Originally posted by DemonSVT:
Competely different principle.
Plus laminar flow disturbances are by objects actually IN the path of flow. The stock center bar MAF is a perfect example. (Pro-M MAF's have side horned MAF filaments)
The setup of "largest" filter to "larger" MAF to "large" TB to upper intake manifold (2 part manifold with dual runners whose surface area is larger than the intake opening!) would naturally accelerate the incoming intake charge. Venturi principle.
RIGHT! That is what I was trying to describe. The acceleration would be there, but right up to the TB, and then with polished intake mani you can take most advantage of this acceleration. Swirl and flow would be maximized theoretically. The MAF sensor HAS to be there. But the oversize (a la Granatelli Motorsports) is much better than OEM. But removing angles and corrugated rubber hosing via a ricer(KKM) tube is the key to improving breathing, as much as possible. Smoothing things out and straightening them out, and why not go for Venturi effect, and most HP will be seen IMO.
Also ram air (true ram air - not the psuedo crap labeled ram air today) causes low rpm stalling and would not produce a noticable boost in intake pressure until above highway speeds. You are much better off with a fresh air supply over a sealed ram air setup!
Right, the theory is constantly debated especially amongst the Pontiac forums of this marketing BS system in the cars. Cold air is probably the best we can hope for unless you want to go crazy with a hole in the hood and a setup there. But there is a substantial improvement over stock with mine, I have a CAI Tube down behind the Fog, and a Duct from the "gills" in my fascia to the "velocity stack" of my cone. It is the best setup I have found. Also, there is much better RAMAIR effect with it, even if only at 50+ MPH.
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JOUT