Getting cool clean air in will help...even at lower speeds than 120mph...but the big benefit would be a WOT (added horsepower)...unless you have a diesel, then it would help almost all the time.
2006 Jeep Liberty CRD...Founder of L.O.S.T.
OME 2.25" Lift w/ Toyo Open Country HTs 235/75/16s
ASFIR Alum Eng/Tranny/Transfercase/Fuel Skids
2002 Air Box Mod...Air Tabs (5) on Roof...(3)each behind rear windows
Partial Grill Block with Custom Air Scoop and 3" Open Catback Exhaust
Lambretta UNO150cc 4 Stroke Scooter
Good article. He does mention a slight gain with the first setup. The greater the square " of the opening...the greater the pressure gain. Still say a small hole at a low spot would help drain water during rain. And you wouldn't want the opening down too low for sure.
Leading the perpetually ignorant and uninformed into the light of scientific knowledge. Did I really say that?
a new policy....I intend to ignore the nescient...a waste of time and energy.
No way, you can't drive a car that looks hot and act like you're getting good mpg at the same time, performance modifications need to be invisible for this reason and also reasons of profiling and aerodynamics.
Putting a scoop on a car is a ricer thing but it should serve a purpose beyond marring the finish such as supplying ram air to a turbocharger, but to put a scoop on a car because it's something to do means probably the only thing it will increase is the amount of police attention your vehicle attracts
Get a Mr. Gasket high performance filter, $25, plop it on the intake, there's all the extra air you need. New replacement air filters you mix and match until you find the one, they're about $4, when that time comes.
A FE gauge should be standard equipment in every vehicle.